--- _id: '5217' abstract: - lang: ger text: 'Die in den letzten 25 Jahren weltweit und in Europa in den letzten zehn Jahren forcierte Liberalisierung der Telekommunikationsbranche stellt ein bemerkenswertes Beispiel für den erfolgreichen Wandel ordnungspolitischer Rahmenbedingungen dar. Die Erfolge dieser Reformprozesse sowie die daraus resultierenden institutionellen Lernprozesse waren auch für die übrigen netzgebundenen Industrien wie z.B. Energiewirtschaft, Bahn oder Post wegweisend. Thema dieses Aufsatzes ist das Spannungsfeld zwischen der Vermeidung von Diskriminierungsanreizen durch vertikale Separierung, möglichen Effizienzgewinnen und adäquaten Investitionsanreizen. Im Folgenden werden sowohl theoretische Grundlagen netzgebundener Industrien im Allgemeinen als auch theoretische Argumente für oder gegen eine vertikale Integration netzgebundener Industrien diskutiert. Die theoretischen Argumente werden anschließend beispielhaft auf den Bahnsektor, die Energiewirtschaft sowie die Wasserwirtschaft angewendet. ' author: - first_name: Justus full_name: Haucap, Justus last_name: Haucap - first_name: Ulrich full_name: Heimeshoff, Ulrich last_name: Heimeshoff - first_name: André full_name: Uhde, André id: '36049' last_name: Uhde orcid: https://orcid.org/0000-0002-8058-8857 citation: ama: 'Haucap J, Heimeshoff U, Uhde A. Vertikale Entflechtung netzgebundener Industrien: Kosten und Nutzen aus ökonomischer Sicht. In: Trennung von Infrastruktur und Betrieb, Beiträge zur öffentlichen Wirtschaft 25, ed. Gesellschaft für öffentliche Wirtschaft. Berlin; 2007:27-65.' apa: 'Haucap, J., Heimeshoff, U., & Uhde, A. (2007). Vertikale Entflechtung netzgebundener Industrien: Kosten und Nutzen aus ökonomischer Sicht. In Trennung von Infrastruktur und Betrieb, Beiträge zur öffentlichen Wirtschaft 25 (Ed.), Gesellschaft für öffentliche Wirtschaft (pp. 27–65). Berlin.' bibtex: '@inbook{Haucap_Heimeshoff_Uhde_2007, place={Berlin}, title={Vertikale Entflechtung netzgebundener Industrien: Kosten und Nutzen aus ökonomischer Sicht}, booktitle={Gesellschaft für öffentliche Wirtschaft}, author={Haucap, Justus and Heimeshoff, Ulrich and Uhde, André}, editor={Trennung von Infrastruktur und Betrieb, Beiträge zur öffentlichen Wirtschaft 25Editor}, year={2007}, pages={27–65} }' chicago: 'Haucap, Justus, Ulrich Heimeshoff, and André Uhde. “Vertikale Entflechtung netzgebundener Industrien: Kosten und Nutzen aus ökonomischer Sicht.” In Gesellschaft für öffentliche Wirtschaft, edited by Trennung von Infrastruktur und Betrieb, Beiträge zur öffentlichen Wirtschaft 25, 27–65. Berlin, 2007.' ieee: 'J. Haucap, U. Heimeshoff, and A. Uhde, “Vertikale Entflechtung netzgebundener Industrien: Kosten und Nutzen aus ökonomischer Sicht,” in Gesellschaft für öffentliche Wirtschaft, Trennung von Infrastruktur und Betrieb, Beiträge zur öffentlichen Wirtschaft 25, Ed. Berlin, 2007, pp. 27–65.' mla: 'Haucap, Justus, et al. “Vertikale Entflechtung netzgebundener Industrien: Kosten und Nutzen aus ökonomischer Sicht.” Gesellschaft für öffentliche Wirtschaft, edited by Trennung von Infrastruktur und Betrieb, Beiträge zur öffentlichen Wirtschaft 25, 2007, pp. 27–65.' short: 'J. Haucap, U. Heimeshoff, A. Uhde, in: Trennung von Infrastruktur und Betrieb, Beiträge zur öffentlichen Wirtschaft 25 (Ed.), Gesellschaft für öffentliche Wirtschaft, Berlin, 2007, pp. 27–65.' corporate_editor: - Trennung von Infrastruktur und Betrieb, Beiträge zur öffentlichen Wirtschaft 25 date_created: 2018-10-31T13:37:55Z date_updated: 2022-01-06T07:01:47Z department: - _id: '186' - _id: '188' extern: '1' language: - iso: ger page: 27-65 place: Berlin publication: Gesellschaft für öffentliche Wirtschaft publication_status: published status: public title: 'Vertikale Entflechtung netzgebundener Industrien: Kosten und Nutzen aus ökonomischer Sicht' type: book_chapter user_id: '21810' year: '2007' ... --- _id: '5370' author: - first_name: Udo full_name: Broll, Udo last_name: Broll - first_name: Bernard Michael full_name: Gilroy, Bernard Michael id: '175' last_name: Gilroy - first_name: Elmar full_name: Lukas, Elmar last_name: Lukas citation: ama: Broll U, Gilroy BM, Lukas E. Managing Credit Risk with Credit Derivatives. Annals of Financial Economics. 2007;3(01). apa: Broll, U., Gilroy, B. M., & Lukas, E. (2007). Managing Credit Risk with Credit Derivatives. Annals of Financial Economics, 3(01). bibtex: '@article{Broll_Gilroy_Lukas_2007, title={Managing Credit Risk with Credit Derivatives}, volume={3}, number={01}, journal={Annals of Financial Economics}, publisher={World Scientific}, author={Broll, Udo and Gilroy, Bernard Michael and Lukas, Elmar}, year={2007} }' chicago: Broll, Udo, Bernard Michael Gilroy, and Elmar Lukas. “Managing Credit Risk with Credit Derivatives.” Annals of Financial Economics 3, no. 01 (2007). ieee: U. Broll, B. M. Gilroy, and E. Lukas, “Managing Credit Risk with Credit Derivatives,” Annals of Financial Economics, vol. 3, no. 01, 2007. mla: Broll, Udo, et al. “Managing Credit Risk with Credit Derivatives.” Annals of Financial Economics, vol. 3, no. 01, World Scientific, 2007. short: U. Broll, B.M. Gilroy, E. Lukas, Annals of Financial Economics 3 (2007). date_created: 2018-11-06T07:38:58Z date_updated: 2022-01-06T07:01:50Z department: - _id: '203' intvolume: ' 3' issue: '01' language: - iso: eng publication: Annals of Financial Economics publisher: World Scientific status: public title: Managing Credit Risk with Credit Derivatives type: journal_article user_id: '26589' volume: 3 year: '2007' ... --- _id: '5373' author: - first_name: Udo full_name: Broll, Udo last_name: Broll - first_name: Bernard Michael full_name: Gilroy, Bernard Michael id: '175' last_name: Gilroy - first_name: Elmar full_name: Lukas, Elmar last_name: Lukas citation: ama: Broll U, Gilroy BM, Lukas E. Managing Credit Risk with Credit Derivatives. Annals of Financial Economics. 2007;3(01). apa: Broll, U., Gilroy, B. M., & Lukas, E. (2007). Managing Credit Risk with Credit Derivatives. Annals of Financial Economics, 3(01). bibtex: '@article{Broll_Gilroy_Lukas_2007, title={Managing Credit Risk with Credit Derivatives}, volume={3}, number={01}, journal={Annals of Financial Economics}, publisher={World Scientific}, author={Broll, Udo and Gilroy, Bernard Michael and Lukas, Elmar}, year={2007} }' chicago: Broll, Udo, Bernard Michael Gilroy, and Elmar Lukas. “Managing Credit Risk with Credit Derivatives.” Annals of Financial Economics 3, no. 01 (2007). ieee: U. Broll, B. M. Gilroy, and E. Lukas, “Managing Credit Risk with Credit Derivatives,” Annals of Financial Economics, vol. 3, no. 01, 2007. mla: Broll, Udo, et al. “Managing Credit Risk with Credit Derivatives.” Annals of Financial Economics, vol. 3, no. 01, World Scientific, 2007. short: U. Broll, B.M. Gilroy, E. Lukas, Annals of Financial Economics 3 (2007). date_created: 2018-11-06T08:00:26Z date_updated: 2022-01-06T07:01:50Z department: - _id: '203' intvolume: ' 3' issue: '01' publication: Annals of Financial Economics publisher: World Scientific status: public title: Managing Credit Risk with Credit Derivatives type: journal_article user_id: '26589' volume: 3 year: '2007' ... --- _id: '5572' author: - first_name: Rüdiger full_name: Kabst, Rüdiger id: '42362' last_name: Kabst citation: ama: 'Kabst R. A Different View to Atypical Work: Interim Management. Korean Journal of Economics. 2007;25(4):25-41.' apa: 'Kabst, R. (2007). A Different View to Atypical Work: Interim Management. Korean Journal of Economics., 25(4), 25–41.' bibtex: '@article{Kabst_2007, title={A Different View to Atypical Work: Interim Management.}, volume={25}, number={4}, journal={ Korean Journal of Economics.}, author={Kabst, Rüdiger}, year={2007}, pages={25–41} }' chicago: 'Kabst, Rüdiger. “A Different View to Atypical Work: Interim Management.” Korean Journal of Economics. 25, no. 4 (2007): 25–41.' ieee: 'R. Kabst, “A Different View to Atypical Work: Interim Management.,” Korean Journal of Economics., vol. 25, no. 4, pp. 25–41, 2007.' mla: 'Kabst, Rüdiger. “A Different View to Atypical Work: Interim Management.” Korean Journal of Economics., vol. 25, no. 4, 2007, pp. 25–41.' short: R. Kabst, Korean Journal of Economics. 25 (2007) 25–41. date_created: 2018-11-14T11:07:48Z date_updated: 2022-01-06T07:01:59Z department: - _id: '274' intvolume: ' 25' issue: '4' language: - iso: eng page: 25-41 publication: ' Korean Journal of Economics.' status: public title: 'A Different View to Atypical Work: Interim Management.' type: journal_article user_id: '46632' volume: 25 year: '2007' ... --- _id: '5574' author: - first_name: I full_name: Weller, I last_name: Weller - first_name: Rüdiger full_name: Kabst, Rüdiger id: '42362' last_name: Kabst citation: ama: 'Weller I, Kabst R. Determinanten des Downsizings: Eine empirische Analyse mit den Daten des Cranfield Project on International HRM. Die Betriebswirtschaft (DBW). 2007;67(3):299-318.' apa: 'Weller, I., & Kabst, R. (2007). Determinanten des Downsizings: Eine empirische Analyse mit den Daten des Cranfield Project on International HRM. Die Betriebswirtschaft (DBW)., 67(3), 299–318.' bibtex: '@article{Weller_Kabst_2007, title={Determinanten des Downsizings: Eine empirische Analyse mit den Daten des Cranfield Project on International HRM.}, volume={67}, number={3}, journal={Die Betriebswirtschaft (DBW).}, author={Weller, I and Kabst, Rüdiger}, year={2007}, pages={299–318} }' chicago: 'Weller, I, and Rüdiger Kabst. “Determinanten Des Downsizings: Eine Empirische Analyse Mit Den Daten Des Cranfield Project on International HRM.” Die Betriebswirtschaft (DBW). 67, no. 3 (2007): 299–318.' ieee: 'I. Weller and R. Kabst, “Determinanten des Downsizings: Eine empirische Analyse mit den Daten des Cranfield Project on International HRM.,” Die Betriebswirtschaft (DBW)., vol. 67, no. 3, pp. 299–318, 2007.' mla: 'Weller, I., and Rüdiger Kabst. “Determinanten Des Downsizings: Eine Empirische Analyse Mit Den Daten Des Cranfield Project on International HRM.” Die Betriebswirtschaft (DBW)., vol. 67, no. 3, 2007, pp. 299–318.' short: I. Weller, R. Kabst, Die Betriebswirtschaft (DBW). 67 (2007) 299–318. date_created: 2018-11-14T11:13:47Z date_updated: 2022-01-06T07:01:59Z department: - _id: '274' intvolume: ' 67' issue: '3' language: - iso: eng page: 299-318 publication: Die Betriebswirtschaft (DBW). status: public title: 'Determinanten des Downsizings: Eine empirische Analyse mit den Daten des Cranfield Project on International HRM.' type: journal_article user_id: '46632' volume: 67 year: '2007' ... --- _id: '5577' author: - first_name: C full_name: Koenig, C last_name: Koenig - first_name: Holger full_name: Steinmetz, Holger id: '43261' last_name: Steinmetz - first_name: M full_name: Frese, M last_name: Frese - first_name: A full_name: Rauch, A last_name: Rauch - first_name: Z M full_name: Wang, Z M last_name: Wang citation: ama: Koenig C, Steinmetz H, Frese M, Rauch A, Wang ZM. Scenario-based scales measuring cultural orientations of business owners. Journal of Evolutionary Economics. 2007;17:211-239. apa: Koenig, C., Steinmetz, H., Frese, M., Rauch, A., & Wang, Z. M. (2007). Scenario-based scales measuring cultural orientations of business owners. Journal of Evolutionary Economics., 17, 211–239. bibtex: '@article{Koenig_Steinmetz_Frese_Rauch_Wang_2007, title={Scenario-based scales measuring cultural orientations of business owners.}, volume={17}, journal={Journal of Evolutionary Economics.}, author={Koenig, C and Steinmetz, Holger and Frese, M and Rauch, A and Wang, Z M}, year={2007}, pages={211–239} }' chicago: 'Koenig, C, Holger Steinmetz, M Frese, A Rauch, and Z M Wang. “Scenario-Based Scales Measuring Cultural Orientations of Business Owners.” Journal of Evolutionary Economics. 17 (2007): 211–39.' ieee: C. Koenig, H. Steinmetz, M. Frese, A. Rauch, and Z. M. Wang, “Scenario-based scales measuring cultural orientations of business owners.,” Journal of Evolutionary Economics., vol. 17, pp. 211–239, 2007. mla: Koenig, C., et al. “Scenario-Based Scales Measuring Cultural Orientations of Business Owners.” Journal of Evolutionary Economics., vol. 17, 2007, pp. 211–39. short: C. Koenig, H. Steinmetz, M. Frese, A. Rauch, Z.M. Wang, Journal of Evolutionary Economics. 17 (2007) 211–239. date_created: 2018-11-14T11:16:11Z date_updated: 2022-01-06T07:02:00Z department: - _id: '274' intvolume: ' 17' language: - iso: eng page: 211-239 publication: Journal of Evolutionary Economics. status: public title: Scenario-based scales measuring cultural orientations of business owners. type: journal_article user_id: '46632' volume: 17 year: '2007' ... --- _id: '5650' author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schryen G. A Scalable and Flexible Infrastructure Framework For Addressing Spam. In: Satesh D, Prabhakar R, eds. Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research. Hyderabad, India: ICFAI University Press; 2007:55-64.' apa: 'Schryen, G. (2007). A Scalable and Flexible Infrastructure Framework For Addressing Spam. In D. Satesh & R. Prabhakar (Eds.), Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research (pp. 55–64). Hyderabad, India: ICFAI University Press.' bibtex: '@inbook{Schryen_2007, place={Hyderabad, India}, title={A Scalable and Flexible Infrastructure Framework For Addressing Spam}, booktitle={Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research}, publisher={ICFAI University Press}, author={Schryen, Guido}, editor={Satesh, D. and Prabhakar, R.Editors}, year={2007}, pages={55–64} }' chicago: 'Schryen, Guido. “A Scalable and Flexible Infrastructure Framework For Addressing Spam.” In Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research, edited by D. Satesh and R. Prabhakar, 55–64. Hyderabad, India: ICFAI University Press, 2007.' ieee: 'G. Schryen, “A Scalable and Flexible Infrastructure Framework For Addressing Spam,” in Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research, D. Satesh and R. Prabhakar, Eds. Hyderabad, India: ICFAI University Press, 2007, pp. 55–64.' mla: Schryen, Guido. “A Scalable and Flexible Infrastructure Framework For Addressing Spam.” Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research, edited by D. Satesh and R. Prabhakar, ICFAI University Press, 2007, pp. 55–64. short: 'G. Schryen, in: D. Satesh, R. Prabhakar (Eds.), Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research, ICFAI University Press, Hyderabad, India, 2007, pp. 55–64.' date_created: 2018-11-14T14:44:01Z date_updated: 2022-01-06T07:02:20Z department: - _id: '277' editor: - first_name: D. full_name: Satesh, D. last_name: Satesh - first_name: R. full_name: Prabhakar, R. last_name: Prabhakar extern: '1' language: - iso: eng page: 55-64 place: Hyderabad, India publication: Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research publisher: ICFAI University Press status: public title: A Scalable and Flexible Infrastructure Framework For Addressing Spam type: book_chapter user_id: '61579' year: '2007' ... --- _id: '5651' author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schryen G. Anti-Spam Measures: Analysis and Design. Berlin, Heidelberg, New York: Springer; 2007.' apa: 'Schryen, G. (2007). Anti-Spam Measures: Analysis and Design. Berlin, Heidelberg, New York: Springer.' bibtex: '@book{Schryen_2007, place={Berlin, Heidelberg, New York}, title={Anti-Spam Measures: Analysis and Design}, publisher={Springer}, author={Schryen, Guido}, year={2007} }' chicago: 'Schryen, Guido. Anti-Spam Measures: Analysis and Design. Berlin, Heidelberg, New York: Springer, 2007.' ieee: 'G. Schryen, Anti-Spam Measures: Analysis and Design. Berlin, Heidelberg, New York: Springer, 2007.' mla: 'Schryen, Guido. Anti-Spam Measures: Analysis and Design. Springer, 2007.' short: 'G. Schryen, Anti-Spam Measures: Analysis and Design, Springer, Berlin, Heidelberg, New York, 2007.' date_created: 2018-11-14T14:45:12Z date_updated: 2022-01-06T07:02:20Z department: - _id: '277' extern: '1' language: - iso: eng place: Berlin, Heidelberg, New York publisher: Springer status: public title: 'Anti-Spam Measures: Analysis and Design' type: book user_id: '61579' year: '2007' ... --- _id: '5652' abstract: - lang: eng text: More than half of world-wide e-mail traffic ? an estimated total of several billion e-mails per day ? consists of spam. This is becoming a considerable disturbance to telecommunications. Spam is also closely related to other kinds of cyber crime as it possibly contains malicious software or is pursuing some kind of fraudulent aim, such as phishing. Besides technical and organizational measures, many countries have introduced anti-spam legislation. However, today's world-wide legislative coverage of spam is heterogeneous, and its effectiveness is controversially discussed. This article describes important parameters by which anti-spam legislation can vary and gives an overview and analysis of world-wide anti-spam legislation, including the European Directive 2002/58/EC, the U.S. CANSPAM Act of 2003, and international cooperation, such as the London Action Plan. The article then proceeds to discuss the effectiveness of current laws, and it identifies problems resulting from the fact that an international phenomenon is being addressed by national legislation. Finally, the article presents suggestions for overcoming some of these problems. author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schryen G. Anti-spam legislation: An analysis of laws and their effectiveness. Information and Communications Technology Law. 2007;16(1):17-32.' apa: 'Schryen, G. (2007). Anti-spam legislation: An analysis of laws and their effectiveness. Information and Communications Technology Law, 16(1), 17–32.' bibtex: '@article{Schryen_2007, title={Anti-spam legislation: An analysis of laws and their effectiveness}, volume={16}, number={1}, journal={Information and Communications Technology Law}, publisher={Taylor \& Francis}, author={Schryen, Guido}, year={2007}, pages={17–32} }' chicago: 'Schryen, Guido. “Anti-Spam Legislation: An Analysis of Laws and Their Effectiveness.” Information and Communications Technology Law 16, no. 1 (2007): 17–32.' ieee: 'G. Schryen, “Anti-spam legislation: An analysis of laws and their effectiveness,” Information and Communications Technology Law, vol. 16, no. 1, pp. 17–32, 2007.' mla: 'Schryen, Guido. “Anti-Spam Legislation: An Analysis of Laws and Their Effectiveness.” Information and Communications Technology Law, vol. 16, no. 1, Taylor \& Francis, 2007, pp. 17–32.' short: G. Schryen, Information and Communications Technology Law 16 (2007) 17–32. date_created: 2018-11-14T14:45:57Z date_updated: 2022-01-06T07:02:21Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-18T13:25:48Z date_updated: 2018-12-18T13:25:48Z file_id: '6325' file_name: JOUNAL_VERSION.pdf file_size: 175248 relation: main_file file_date_updated: 2018-12-18T13:25:48Z has_accepted_license: '1' intvolume: ' 16' issue: '1' language: - iso: eng oa: '1' page: 17-32 publication: Information and Communications Technology Law publisher: Taylor \& Francis status: public title: 'Anti-spam legislation: An analysis of laws and their effectiveness' type: journal_article user_id: '61579' volume: 16 year: '2007' ... --- _id: '5653' author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schryen G. Approaches Addressing Spam. In: Satesh D, Prabhakar R, eds. Spam: An Introduction. Hyderabad, India: ICFAI University Press; 2007:41-57.' apa: 'Schryen, G. (2007). Approaches Addressing Spam. In D. Satesh & R. Prabhakar (Eds.), Spam: An Introduction (pp. 41–57). Hyderabad, India: ICFAI University Press.' bibtex: '@inbook{Schryen_2007, place={Hyderabad, India}, title={Approaches Addressing Spam}, booktitle={Spam: An Introduction}, publisher={ICFAI University Press}, author={Schryen, Guido}, editor={Satesh, D. and Prabhakar, R.Editors}, year={2007}, pages={41–57} }' chicago: 'Schryen, Guido. “Approaches Addressing Spam.” In Spam: An Introduction, edited by D. Satesh and R. Prabhakar, 41–57. Hyderabad, India: ICFAI University Press, 2007.' ieee: 'G. Schryen, “Approaches Addressing Spam,” in Spam: An Introduction, D. Satesh and R. Prabhakar, Eds. Hyderabad, India: ICFAI University Press, 2007, pp. 41–57.' mla: 'Schryen, Guido. “Approaches Addressing Spam.” Spam: An Introduction, edited by D. Satesh and R. Prabhakar, ICFAI University Press, 2007, pp. 41–57.' short: 'G. Schryen, in: D. Satesh, R. Prabhakar (Eds.), Spam: An Introduction, ICFAI University Press, Hyderabad, India, 2007, pp. 41–57.' date_created: 2018-11-14T14:46:28Z date_updated: 2022-01-06T07:02:21Z department: - _id: '277' editor: - first_name: D. full_name: Satesh, D. last_name: Satesh - first_name: R. full_name: Prabhakar, R. last_name: Prabhakar extern: '1' language: - iso: eng page: 41-57 place: Hyderabad, India publication: 'Spam: An Introduction' publisher: ICFAI University Press status: public title: Approaches Addressing Spam type: book_chapter user_id: '61579' year: '2007' ... --- _id: '5654' abstract: - lang: eng text: Spamming remains a form of Internet abuse, which burdens the Internet infrastructure, is generally regarded as an annoyance, and is said to cause economic harm to the tune of about several billion US\$ per year. Many technological, organizational, and legislative anti-spam measures have already been proposed and implemented, but have not led to any substantial decrease in the number of spam e-mails. We propose here a new infrastructure framework that combines several anti-spam measures in a framework that features both a technological and an organizational facet. The key element of our infrastructure is a new organizational unit that reliably and transparently limits he number of e-mails that can be sent per day and per account. This paper first gives an overview of the framework, then it provides technological and organizational details of the infrastructure, the deployment of which depends to a large degree on its acceptance and propagation by the ICANN, the ISOC, and by large e-mail service providers. Finally, the paper discusses the limitations and drawbacks of the proposed framework. author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schryen G. Armed for the spam battle - a technological and organizational infrastructure framework. In: 40th Annual Hawaii International Conference on System Sciences. ; 2007.' apa: Schryen, G. (2007). Armed for the spam battle - a technological and organizational infrastructure framework. In 40th Annual Hawaii International Conference on System Sciences. bibtex: '@inproceedings{Schryen_2007, title={Armed for the spam battle - a technological and organizational infrastructure framework}, booktitle={40th Annual Hawaii International Conference on System Sciences}, author={Schryen, Guido}, year={2007} }' chicago: Schryen, Guido. “Armed for the Spam Battle - a Technological and Organizational Infrastructure Framework.” In 40th Annual Hawaii International Conference on System Sciences, 2007. ieee: G. Schryen, “Armed for the spam battle - a technological and organizational infrastructure framework,” in 40th Annual Hawaii International Conference on System Sciences, 2007. mla: Schryen, Guido. “Armed for the Spam Battle - a Technological and Organizational Infrastructure Framework.” 40th Annual Hawaii International Conference on System Sciences, 2007. short: 'G. Schryen, in: 40th Annual Hawaii International Conference on System Sciences, 2007.' date_created: 2018-11-14T14:46:49Z date_updated: 2022-01-06T07:02:21Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-18T13:24:34Z date_updated: 2018-12-18T13:24:34Z file_id: '6323' file_name: Armed for the spam battle - a technological and organizational infrastructure framework - proceeding version.pdf file_size: 338482 relation: main_file file_date_updated: 2018-12-18T13:24:34Z has_accepted_license: '1' language: - iso: eng oa: '1' publication: 40th Annual Hawaii International Conference on System Sciences status: public title: Armed for the spam battle - a technological and organizational infrastructure framework type: conference user_id: '61579' year: '2007' ... --- _id: '5655' abstract: - lang: eng text: Spam e-mails have become a serious technological and economic problem. Up to now, by deploying complementary anti-spam measures, we have been reasonably able to withstand spam e-mails and use the Internet for regular communication. However, if we are to avert the danger of losing the Internet e-mail service in its capacity as a valuable, free and worldwide medium of open communication, anti-spam activities should be performed more systematically than is currently the case regarding the mainly heuristic, anti-spam measures in place. A formal framework, within which the existing delivery routes that a spam e-mail may take, and anti-spam measures and their effectiveness can be investigated, will perhaps encourage a shift in methodology and pave the way for new, holistic anti-spam measures. This paper presents a model of the Internet e-mail infrastructure as a directed graph and a deterministic finite automaton and draws on automata theory to formally derive the spam delivery routes. The most important anti-spam measures are then described. Methods controlling only specific delivery routes are evaluated in terms of how effectively they cover the modeled e-mail infrastructure; methods operating independently of any particular routes receive a more general assessment. author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: Schryen G. Do anti-spam measures effectively cover the e-mail communication network? A formal approach. The Journal of Information Systems Security (AIS Special Interest Group in Security). 2007;3(2):66-90. apa: Schryen, G. (2007). Do anti-spam measures effectively cover the e-mail communication network? A formal approach. The Journal of Information Systems Security (AIS Special Interest Group in Security), 3(2), 66–90. bibtex: '@article{Schryen_2007, title={Do anti-spam measures effectively cover the e-mail communication network? A formal approach}, volume={3}, number={2}, journal={The Journal of Information Systems Security (AIS Special Interest Group in Security)}, author={Schryen, Guido}, year={2007}, pages={66–90} }' chicago: 'Schryen, Guido. “Do Anti-Spam Measures Effectively Cover the e-Mail Communication Network? A Formal Approach.” The Journal of Information Systems Security (AIS Special Interest Group in Security) 3, no. 2 (2007): 66–90.' ieee: G. Schryen, “Do anti-spam measures effectively cover the e-mail communication network? A formal approach,” The Journal of Information Systems Security (AIS Special Interest Group in Security), vol. 3, no. 2, pp. 66–90, 2007. mla: Schryen, Guido. “Do Anti-Spam Measures Effectively Cover the e-Mail Communication Network? A Formal Approach.” The Journal of Information Systems Security (AIS Special Interest Group in Security), vol. 3, no. 2, 2007, pp. 66–90. short: G. Schryen, The Journal of Information Systems Security (AIS Special Interest Group in Security) 3 (2007) 66–90. date_created: 2018-11-14T14:51:41Z date_updated: 2022-01-06T07:02:22Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-18T13:25:12Z date_updated: 2018-12-18T13:25:12Z file_id: '6324' file_name: Do anti-spam measures effectively cover the e-mail communication - Journal version.pdf file_size: 100448 relation: main_file file_date_updated: 2018-12-18T13:25:12Z has_accepted_license: '1' intvolume: ' 3' issue: '2' keyword: - e-mail - spam - e-mail infrastructure - anti-spam measures - spamming options language: - iso: eng oa: '1' page: 66-90 publication: The Journal of Information Systems Security (AIS Special Interest Group in Security) status: public title: Do anti-spam measures effectively cover the e-mail communication network? A formal approach type: journal_article user_id: '61579' volume: 3 year: '2007' ... --- _id: '5656' author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schryen G. Location Based Services. In: Schulte H, ed. Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen. Kissing: Interest-Verlag; 2007.' apa: 'Schryen, G. (2007). Location Based Services. In H. Schulte (Ed.), Vom LAN zum Kommunikationsnetz - Systeme und Applikationen. Kissing: Interest-Verlag.' bibtex: '@inbook{Schryen_2007, place={Kissing}, title={Location Based Services}, booktitle={Vom LAN zum Kommunikationsnetz - Systeme und Applikationen}, publisher={Interest-Verlag}, author={Schryen, Guido}, editor={Schulte, HeinzEditor}, year={2007} }' chicago: 'Schryen, Guido. “Location Based Services.” In Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, edited by Heinz Schulte. Kissing: Interest-Verlag, 2007.' ieee: 'G. Schryen, “Location Based Services,” in Vom LAN zum Kommunikationsnetz - Systeme und Applikationen, H. Schulte, Ed. Kissing: Interest-Verlag, 2007.' mla: Schryen, Guido. “Location Based Services.” Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, edited by Heinz Schulte, Interest-Verlag, 2007. short: 'G. Schryen, in: H. Schulte (Ed.), Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, Interest-Verlag, Kissing, 2007.' date_created: 2018-11-14T14:52:09Z date_updated: 2022-01-06T07:02:22Z department: - _id: '277' editor: - first_name: Heinz full_name: Schulte, Heinz last_name: Schulte extern: '1' language: - iso: eng place: Kissing publication: Vom LAN zum Kommunikationsnetz - Systeme und Applikationen publisher: Interest-Verlag status: public title: Location Based Services type: book_chapter user_id: '61579' year: '2007' ... --- _id: '5657' author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: 'Schryen G. Spam-Emails. In: Schulte H, ed. Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, Edition 02/2007. Vol 9/12. Kissing: Interest-Verlag; 2007.' apa: 'Schryen, G. (2007). Spam-Emails. In H. Schulte (Ed.), Vom LAN zum Kommunikationsnetz - Systeme und Applikationen, Edition 02/2007 (Vol. 9/12). Kissing: Interest-Verlag.' bibtex: '@inbook{Schryen_2007, place={Kissing}, title={Spam-Emails}, volume={9/12}, booktitle={Vom LAN zum Kommunikationsnetz - Systeme und Applikationen, Edition 02/2007}, publisher={Interest-Verlag}, author={Schryen, Guido}, editor={Schulte, HeinzEditor}, year={2007} }' chicago: 'Schryen, Guido. “Spam-Emails.” In Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, Edition 02/2007, edited by Heinz Schulte, Vol. 9/12. Kissing: Interest-Verlag, 2007.' ieee: 'G. Schryen, “Spam-Emails,” in Vom LAN zum Kommunikationsnetz - Systeme und Applikationen, Edition 02/2007, vol. 9/12, H. Schulte, Ed. Kissing: Interest-Verlag, 2007.' mla: Schryen, Guido. “Spam-Emails.” Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, Edition 02/2007, edited by Heinz Schulte, vol. 9/12, Interest-Verlag, 2007. short: 'G. Schryen, in: H. Schulte (Ed.), Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, Edition 02/2007, Interest-Verlag, Kissing, 2007.' date_created: 2018-11-14T14:52:32Z date_updated: 2022-01-06T07:02:22Z department: - _id: '277' editor: - first_name: Heinz full_name: Schulte, Heinz last_name: Schulte extern: '1' language: - iso: eng place: Kissing publication: Vom LAN zum Kommunikationsnetz - Systeme und Applikationen, Edition 02/2007 publisher: Interest-Verlag status: public title: Spam-Emails type: book_chapter user_id: '61579' volume: 9/12 year: '2007' ... --- _id: '5658' abstract: - lang: eng text: 'Email communication is encumbered with a mass of email messages which their recipients have neither requested nor require. Even worse, the impacts of these messages are far from being simply an annoyance, as they also involve economic damage. This manuscript examines the resource ?email addresses?, which is vital for any potential bulk mailer and spammer. Both a methodology and a honeypot conceptualization for implementing an empirical analysis of the usage of email addresses placed on the Internet are proposed here. Their objective is to assess, on a quantitative basis, the extent of the current harassment and its development over time. This ?framework? is intended to be extensible to measuring the effectiveness of address-obscuring techniques. The implementation of a pilot honeypot is described, which led to key findings, some of them being: (1) Web placements attract more than two-thirds (70\%) of all honeypot spam emails, followed by newsgroup placements (28.6\%) and newsletter subscriptions (1.4\%), (2) the proportions of spam relating to the email addresses? top-level domain can be statistically assumed to be uniformly distributed, (3) More than 43\% of addresses on the web have been abused, whereas about 27\% was the case for addresses on newsgroups and only about 4\% was the case for addresses used for a newsletter subscription, (4) Regarding the development of email addresses? attractiveness for spammers over time, the service ?web sites? features a negative linear relationship, whereas the service ?Usenet? hows a negative exponential relationship. (5) Only 1.54\% of the spam emails showed an interrelation between the topic of the spam email and that of the location where the recipient?s address was placed, so that spammers are assumed to send their emails in a ?context insensitive? manner. The results of the empirical analysis motivate the need for the protection of email addresses through obscuration. We analyze this need by formulating requirements for address obscuring techniques and we reveal to which extent today?s most relevant approaches fulfill these requirements.' author: - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: Schryen G. The Impact that Placing Email Addresses on the Internet has on the Receipt of Spam ? An Empirical Analysis. Computers & Security. 2007;2(5):361-372. apa: Schryen, G. (2007). The Impact that Placing Email Addresses on the Internet has on the Receipt of Spam ? An Empirical Analysis. Computers & Security, 2(5), 361–372. bibtex: '@article{Schryen_2007, title={The Impact that Placing Email Addresses on the Internet has on the Receipt of Spam ? An Empirical Analysis}, volume={2}, number={5}, journal={Computers & Security}, publisher={Elsevier}, author={Schryen, Guido}, year={2007}, pages={361–372} }' chicago: 'Schryen, Guido. “The Impact That Placing Email Addresses on the Internet Has on the Receipt of Spam ? An Empirical Analysis.” Computers & Security 2, no. 5 (2007): 361–72.' ieee: G. Schryen, “The Impact that Placing Email Addresses on the Internet has on the Receipt of Spam ? An Empirical Analysis,” Computers & Security, vol. 2, no. 5, pp. 361–372, 2007. mla: Schryen, Guido. “The Impact That Placing Email Addresses on the Internet Has on the Receipt of Spam ? An Empirical Analysis.” Computers & Security, vol. 2, no. 5, Elsevier, 2007, pp. 361–72. short: G. Schryen, Computers & Security 2 (2007) 361–372. date_created: 2018-11-14T14:53:12Z date_updated: 2022-01-06T07:02:22Z ddc: - '000' department: - _id: '277' extern: '1' file: - access_level: open_access content_type: application/pdf creator: hsiemes date_created: 2018-12-18T13:27:01Z date_updated: 2018-12-18T13:27:01Z file_id: '6326' file_name: The Impact that Placing Email Addresses on the Internet has on the Receipt of Spam - An Empirical Analysis - Journal version.pdf file_size: 3026200 relation: main_file file_date_updated: 2018-12-18T13:27:01Z has_accepted_license: '1' intvolume: ' 2' issue: '5' keyword: - Address-obfuscating techniques - email - empirical analysis - honeypot - security by design - security by obscurity - spam language: - iso: eng oa: '1' page: 361-372 publication: Computers & Security publisher: Elsevier status: public title: The Impact that Placing Email Addresses on the Internet has on the Receipt of Spam ? An Empirical Analysis type: journal_article user_id: '61579' volume: 2 year: '2007' ... --- _id: '14939' author: - first_name: Thomas full_name: Gries, Thomas id: '186' last_name: Gries - first_name: Ulrich full_name: Prior, Ulrich last_name: Prior - first_name: Caren full_name: Sureth-Sloane, Caren id: '530' last_name: Sureth-Sloane citation: ama: Gries T, Prior U, Sureth-Sloane C. Taxation of Risky Investment and Paradoxical Investor Behavior. Vol 26.; 2007. apa: Gries, T., Prior, U., & Sureth-Sloane, C. (2007). Taxation of Risky Investment and Paradoxical Investor Behavior (Vol. 26). bibtex: '@book{Gries_Prior_Sureth-Sloane_2007, series={arqus - Quantitative Research in Taxation}, title={Taxation of Risky Investment and Paradoxical Investor Behavior}, volume={26}, author={Gries, Thomas and Prior, Ulrich and Sureth-Sloane, Caren}, year={2007}, collection={arqus - Quantitative Research in Taxation} }' chicago: Gries, Thomas, Ulrich Prior, and Caren Sureth-Sloane. Taxation of Risky Investment and Paradoxical Investor Behavior. Vol. 26. Arqus - Quantitative Research in Taxation, 2007. ieee: T. Gries, U. Prior, and C. Sureth-Sloane, Taxation of Risky Investment and Paradoxical Investor Behavior, vol. 26. 2007. mla: Gries, Thomas, et al. Taxation of Risky Investment and Paradoxical Investor Behavior. Vol. 26, 2007. short: T. Gries, U. Prior, C. Sureth-Sloane, Taxation of Risky Investment and Paradoxical Investor Behavior, 2007. date_created: 2019-11-13T12:53:39Z date_updated: 2022-01-06T06:52:11Z department: - _id: '187' intvolume: ' 26' language: - iso: eng publication_status: published series_title: arqus - Quantitative Research in Taxation status: public title: Taxation of Risky Investment and Paradoxical Investor Behavior type: working_paper user_id: '21222' volume: 26 year: '2007' ... --- _id: '14941' alternative_title: - Gutachten im Auftrag der Bertelsmann Stiftung author: - first_name: Ralf full_name: Maiterth, Ralf last_name: Maiterth - first_name: Caren full_name: Sureth-Sloane, Caren id: '530' last_name: Sureth-Sloane citation: ama: Maiterth R, Sureth-Sloane C. Aufkommenswirkungen des Erbschaftsteuerreformvorschlags der CDU/CSU-Mittelstandsvereinigung. Paderborn; 2007. apa: Maiterth, R., & Sureth-Sloane, C. (2007). Aufkommenswirkungen des Erbschaftsteuerreformvorschlags der CDU/CSU-Mittelstandsvereinigung. Paderborn. bibtex: '@book{Maiterth_Sureth-Sloane_2007, place={Paderborn}, title={Aufkommenswirkungen des Erbschaftsteuerreformvorschlags der CDU/CSU-Mittelstandsvereinigung}, author={Maiterth, Ralf and Sureth-Sloane, Caren}, year={2007} }' chicago: Maiterth, Ralf, and Caren Sureth-Sloane. Aufkommenswirkungen des Erbschaftsteuerreformvorschlags der CDU/CSU-Mittelstandsvereinigung. Paderborn, 2007. ieee: R. Maiterth and C. Sureth-Sloane, Aufkommenswirkungen des Erbschaftsteuerreformvorschlags der CDU/CSU-Mittelstandsvereinigung. Paderborn, 2007. mla: Maiterth, Ralf, and Caren Sureth-Sloane. Aufkommenswirkungen des Erbschaftsteuerreformvorschlags der CDU/CSU-Mittelstandsvereinigung. 2007. short: R. Maiterth, C. Sureth-Sloane, Aufkommenswirkungen des Erbschaftsteuerreformvorschlags der CDU/CSU-Mittelstandsvereinigung, Paderborn, 2007. date_created: 2019-11-13T12:59:27Z date_updated: 2022-01-06T06:52:11Z department: - _id: '187' language: - iso: ger place: Paderborn publication_status: published status: public title: Aufkommenswirkungen des Erbschaftsteuerreformvorschlags der CDU/CSU-Mittelstandsvereinigung type: report user_id: '21222' year: '2007' ... --- _id: '14942' author: - first_name: Jens full_name: Müller, Jens id: '1245' last_name: Müller citation: ama: Müller J. Die steuerliche Ungleichbehandlung von Anteilen an Kapitalgesellschaften. FinanzBetrieb. 2007;9:415-426. apa: Müller, J. (2007). Die steuerliche Ungleichbehandlung von Anteilen an Kapitalgesellschaften. FinanzBetrieb, 9, 415–426. bibtex: '@article{Müller_2007, title={Die steuerliche Ungleichbehandlung von Anteilen an Kapitalgesellschaften}, volume={9}, journal={FinanzBetrieb}, author={Müller, Jens}, year={2007}, pages={415–426} }' chicago: 'Müller, Jens. “Die steuerliche Ungleichbehandlung von Anteilen an Kapitalgesellschaften.” FinanzBetrieb 9 (2007): 415–26.' ieee: J. Müller, “Die steuerliche Ungleichbehandlung von Anteilen an Kapitalgesellschaften,” FinanzBetrieb, vol. 9, pp. 415–426, 2007. mla: Müller, Jens. “Die steuerliche Ungleichbehandlung von Anteilen an Kapitalgesellschaften.” FinanzBetrieb, vol. 9, 2007, pp. 415–26. short: J. Müller, FinanzBetrieb 9 (2007) 415–426. date_created: 2019-11-13T13:01:06Z date_updated: 2022-01-06T06:52:11Z department: - _id: '187' intvolume: ' 9' language: - iso: ger page: 415-426 publication: FinanzBetrieb publication_status: published status: public title: Die steuerliche Ungleichbehandlung von Anteilen an Kapitalgesellschaften type: journal_article user_id: '21222' volume: 9 year: '2007' ... --- _id: '14943' author: - first_name: Heiko full_name: Müller, Heiko last_name: Müller - first_name: Caren full_name: Sureth-Sloane, Caren id: '530' last_name: Sureth-Sloane citation: ama: Müller H, Sureth-Sloane C. Group Simulation and Income Tax Statistics - How Big Is the Error? Vol 24.; 2007. apa: Müller, H., & Sureth-Sloane, C. (2007). Group Simulation and Income Tax Statistics - How Big is the Error? (Vol. 24). bibtex: '@book{Müller_Sureth-Sloane_2007, series={arqus - Quantitative Research in Taxation}, title={Group Simulation and Income Tax Statistics - How Big is the Error?}, volume={24}, author={Müller, Heiko and Sureth-Sloane, Caren}, year={2007}, collection={arqus - Quantitative Research in Taxation} }' chicago: Müller, Heiko, and Caren Sureth-Sloane. Group Simulation and Income Tax Statistics - How Big Is the Error? Vol. 24. Arqus - Quantitative Research in Taxation, 2007. ieee: H. Müller and C. Sureth-Sloane, Group Simulation and Income Tax Statistics - How Big is the Error?, vol. 24. 2007. mla: Müller, Heiko, and Caren Sureth-Sloane. Group Simulation and Income Tax Statistics - How Big Is the Error? Vol. 24, 2007. short: H. Müller, C. Sureth-Sloane, Group Simulation and Income Tax Statistics - How Big Is the Error?, 2007. date_created: 2019-11-13T13:10:22Z date_updated: 2022-01-06T06:52:11Z department: - _id: '187' intvolume: ' 24' language: - iso: eng publication_status: published series_title: arqus - Quantitative Research in Taxation status: public title: Group Simulation and Income Tax Statistics - How Big is the Error? type: working_paper user_id: '21222' volume: 24 year: '2007' ... --- _id: '14944' author: - first_name: Jens full_name: Müller, Jens id: '1245' last_name: Müller citation: ama: Müller J. Die Fehlbewertung durch das Stuttgarter Verfahren - eine Sensitivitätsanalyse der Werttreiber von Steuer- und Marktwerten. Vol 25.; 2007. apa: Müller, J. (2007). Die Fehlbewertung durch das Stuttgarter Verfahren - eine Sensitivitätsanalyse der Werttreiber von Steuer- und Marktwerten (Vol. 25). bibtex: '@book{Müller_2007, series={arqus - Quantitative Research in Taxation}, title={Die Fehlbewertung durch das Stuttgarter Verfahren - eine Sensitivitätsanalyse der Werttreiber von Steuer- und Marktwerten}, volume={25}, author={Müller, Jens}, year={2007}, collection={arqus - Quantitative Research in Taxation} }' chicago: Müller, Jens. Die Fehlbewertung durch das Stuttgarter Verfahren - eine Sensitivitätsanalyse der Werttreiber von Steuer- und Marktwerten. Vol. 25. arqus - Quantitative Research in Taxation, 2007. ieee: J. Müller, Die Fehlbewertung durch das Stuttgarter Verfahren - eine Sensitivitätsanalyse der Werttreiber von Steuer- und Marktwerten, vol. 25. 2007. mla: Müller, Jens. Die Fehlbewertung durch das Stuttgarter Verfahren - eine Sensitivitätsanalyse der Werttreiber von Steuer- und Marktwerten. Vol. 25, 2007. short: J. Müller, Die Fehlbewertung durch das Stuttgarter Verfahren - eine Sensitivitätsanalyse der Werttreiber von Steuer- und Marktwerten, 2007. date_created: 2019-11-13T13:13:00Z date_updated: 2022-01-06T06:52:11Z department: - _id: '187' intvolume: ' 25' language: - iso: ger publication_status: published series_title: arqus - Quantitative Research in Taxation status: public title: Die Fehlbewertung durch das Stuttgarter Verfahren - eine Sensitivitätsanalyse der Werttreiber von Steuer- und Marktwerten type: working_paper user_id: '21222' volume: 25 year: '2007' ...