@article{50719, abstract = {{We propose an indicator for detecting anomalous stock market valuation in real time such that market participants receive timely signals so as to be able to take stabilizing action. Unlike existing approaches, our anomaly indicator introduces three methodological novelties. First, we use an endogenous, purely data-driven, nonparametric trend identification method to separate long-term market movements from more short-term ones. Second, we apply SETAR models that allow for asymmetric expansions and contractions around the long-term trend and find systematic stock price cycles. Third, we implement these findings in our indicator and conduct real-time market forecasts, which have so far been neglected in the literature. Applications of our indicator using monthly S&P 500 stock data from 1970 to the end of 2022 show that short-term anomalous market movements can be identified in real time up to one year ahead. We predict all major anomalies, including the 1987 Bubble and the initial phase of the Financial Crisis that began in 2007. In total, our anomaly indicator identifies more than 80% of all – even minor – anomalous episodes. Thus, smoothing market exaggerations through early signaling seems possible.}}, author = {{Fritz, Marlon and Gries, Thomas and Wiechers, Lukas}}, issn = {{1469-7688}}, journal = {{Quantitative Finance}}, keywords = {{General Economics, Econometrics and Finance, Finance}}, pages = {{1--14}}, publisher = {{Informa UK Limited}}, title = {{{An early indicator for anomalous stock market performance}}}, doi = {{10.1080/14697688.2023.2281529}}, year = {{2024}}, } @article{35637, abstract = {{Individual cognitive functioning declines over time. We seek to understand how adverse physical health shocks in older ages contribute to this development. By use of event-study methods and data from the USA, England, and several countries in Continental Europe, we find evidence that health shocks lead to an immediate and persistent decline in cognitive functioning. This robust finding holds in all regions representing different health insurance systems and seems to be independent of underlying individual demographic characteristics such as sex and age. We also ask whether variables that are susceptible to policy action can reduce the negative consequences of a health shock. Our results suggest that neither compulsory education nor retirement regulations moderate the effects, thus emphasizing the importance for cognitive functioning of maintaining good physical health in old age.}}, author = {{Schiele, Valentin and Schmitz, Hendrik}}, journal = {{European Economic Review}}, title = {{{Understanding cognitive decline in older ages: The role of health shocks}}}, doi = {{10.1016/j.euroecorev.2022.104320}}, volume = {{151}}, year = {{2023}}, } @article{42638, abstract = {{ We propose a new method to estimate and isolate the localization of knowledge spillovers due to the physical presence of a person, using after-application but pre-grant deaths of differently located coinventors of the same patent. The approach estimates the differences in local citations between the deceased and still-living inventors at increasingly distant radii. Patents receive 26 percent fewer citations from within a radius of 20 miles around the deceased, relative to still-living coinventors. Differences attenuate with time and distance, are stronger when still-living coinventors live farther from the deceased, and hold for a subsample of possibly premature deaths. (JEL O31, O33, O34, R32) }}, author = {{Balsmeier, Benjamin and Fleming, Lee and Lück, Sonja}}, issn = {{2640-205X}}, journal = {{American Economic Review: Insights}}, keywords = {{Management, Monitoring, Policy and Law, Geography, Planning and Development}}, number = {{1}}, pages = {{21--33}}, publisher = {{American Economic Association}}, title = {{{Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials}}}, doi = {{10.1257/aeri.20210275}}, volume = {{5}}, year = {{2023}}, } @article{44092, abstract = {{We study how competition between physicians affects the provision of medical care. In our theoretical model, physicians are faced with a heterogeneous patient population, in which patients systematically vary with regard to both their responsiveness to the provided quality of care and their state of health. We test the behavioral predictions derived from this model in a controlled laboratory experiment. In line with the model, we observe that competition significantly improves patient benefits as long as patients are able to respond to the quality provided. For those patients, who are not able to choose a physician, competition even decreases the patient benefit compared to a situation without competition. This decrease is in contrast to our theoretical prediction implying no change in benefits for passive patients. Deviations from patient-optimal treatment are highest for passive patients in need of a low quantity of medical services. With repetition, both, the positive effects of competition for active patients as well as the negative effects of competition for passive patients become more pronounced. Our results imply that competition can not only improve but also worsen patient outcome and that patients’ responsiveness to quality is decisive.}}, author = {{Brosig-Koch, Jeannette and Hehenkamp, Burkhard and Kokot, Johanna}}, journal = {{Health Economics}}, keywords = {{physician competition, patient characteristics, heterogeneity in quality responses, fee-for-service, laboratory experiment}}, title = {{{Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics}}}, doi = {{10.1002/hec.4689}}, year = {{2023}}, } @techreport{44093, abstract = {{We consider a model where for-profit providers compete in quality in a price-regulated market that has been opened to competition, and where the incumbent is located at the center of the market, facing high costs of relocation. The model is relevant in markets such as public health care, education and schooling, or postal services. We find that, when the regulated price is low or intermediate, the entrant strategically locates towards the corner of the market to keep the incumbent at the low monopoly quality level. For a high price, the entrant locates at the corner of the market and both providers implement higher quality compared to a monopoly. In any case, the entrant implements higher quality than the incumbent provider. Social welfare is always higher in a duopoly if the cost of quality is low. For higher cost levels welfare is non-monotonic in the price and it can be optimal to the regulator not to use its entire budget. Therefore, the welfare effect of entry depends on the price and the size of the entry cost, and the regulator should condition the decision to allow entry on an assessment of the entry cost.}}, author = {{Hehenkamp, Burkhard and Kaarbøe, Oddvar M.}}, keywords = {{Quality competition, Price regulation, Location choice, Product differentiation}}, title = {{{Price Regulation, Quality Competition and Location Choice with Costly Relocation}}}, year = {{2023}}, } @techreport{46534, abstract = {{We study the effect of education on health (hospital stays, number of diagnosed conditions, self-rated poor health, and obesity) over the life-cycle in Germany, using compulsory schooling reforms as a source of exogenous variation. Our results suggest a positive correlation of health and education which increases over the life-cycle. We do not, however, find any positive local average treatment effects of an additional year of schooling on health or health care utilization for individuals up to age 79. An exception is obesity, where positive effects of schooling start to be visible around age 60 and become very large in age group 75-79. The results in age group 75-79 need to be interpreted with caution, however, due to small sample size and possible problems of attrition.}}, author = {{Schmitz, Hendrik and Tawiah, Beatrice Baaba}}, keywords = {{Education, health, life-cycle effects, compulsory schooling}}, publisher = {{RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen}}, title = {{{Life-cycle health effects of compulsory schooling}}}, volume = {{1006}}, year = {{2023}}, } @techreport{46521, author = {{Freise, Diana and Schiele, Valentin and Schmitz, Hendrik}}, issn = {{1556-5068}}, keywords = {{General Earth and Planetary Sciences, General Environmental Science}}, publisher = {{Elsevier BV}}, title = {{{Housing Situations and Local COVID-19 Infection Dynamics – A Case Study With Small-Area Data}}}, doi = {{10.2139/ssrn.4372490}}, year = {{2023}}, } @techreport{46536, abstract = {{We study the effect of education on vaccination against COVID-19 and influenza in Germany and Europe. Our identification strategy makes use of changes in compulsory schooling laws and allows to estimate local average treatment effects for individuals between 59 and 91 years of age. We find no significant effect of an additional year of schooling on vaccination status in Germany. Pooling data from Europe, we conclude that schooling increases the likelihood to vaccinate against COVID by an economically negligible effect of one percentage point (zero for influenza). However, we find indications that additional schooling increases fear of side effects from COVID vaccination.}}, author = {{Monsees, Daniel and Schmitz, Hendrik}}, keywords = {{COVID, influenza, vaccination, education, compulsory schooling}}, publisher = {{RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen}}, title = {{{The effect of compulsory schooling on vaccination against COVID and Influenza}}}, volume = {{1011}}, year = {{2023}}, } @article{34114, abstract = {{Qualitative comparative analysis (QCA) enables researchers in international management to better understand how the impact of a single explanatory factor depends on the context of other factors. But the analytical toolbox of QCA does not include a parameter for the explanatory power of a single explanatory factor or “condition”. In this paper, we therefore reinterpret the Banzhaf power index, originally developed in cooperative game theory, to establish a goodness-of-fit parameter in QCA. The relative Banzhaf index we suggest measures the explanatory power of one condition averaged across all sufficient combinations of conditions. The paper argues that the index is especially informative in three situations that are all salient in international management and call for a context-sensitive analysis of single conditions, namely substantial limited diversity in the data, the emergence of strong INUS conditions in the analysis, and theorizing with contingency factors. The paper derives the properties of the relative Banzhaf index in QCA, demonstrates how the index can be computed easily from a rudimentary truth table, and explores its insights by revisiting selected papers in international management that apply fuzzy-set QCA. It finally suggests a three-step procedure for utilizing the relative Banzhaf index when the causal structure involves both contingency effects and configurational causation. }}, author = {{Haake, Claus-Jochen and Schneider, Martin}}, journal = {{Journal of International Management}}, keywords = {{Qualitative comparative analysis, Banzhaf power index, causality, explanatory power}}, publisher = {{Elsevier}}, title = {{{Playing games with QCA: Measuring the explanatory power of single conditions with the Banzhaf index}}}, year = {{2023}}, } @article{30341, author = {{Hoyer, Britta and van Straaten, Dirk}}, issn = {{2214-8043}}, journal = {{Journal of Behavioral and Experimental Economics}}, keywords = {{General Social Sciences, Economics and Econometrics, Applied Psychology}}, pages = {{101869}}, publisher = {{Elsevier BV}}, title = {{{Anonymity and Self-Expression in Online Rating Systems - An Experimental Analysis}}}, doi = {{10.1016/j.socec.2022.101869}}, volume = {{98}}, year = {{2022}}, } @techreport{32106, abstract = {{We study the consequences of modeling asymmetric bargaining power in two-person bargaining problems. Comparing application of an asymmetric version of a bargaining solution to an upfront modification of the disagreement point, the resulting distortion crucially depends on the bargaining solution concept. While for the Kalai-Smorodinsky solution weaker players benefit from modifying the disagreement point, the situation is reversed for the Nash bargaining solution. There, weaker players are better off in the asymmetric bargaining solution. When comparing application of the asymmetric versions of the Nash and the Kalai-Smorodinsky solutions, we demonstrate that there is an upper bound for the weight of a player, so that she is better off with the Nash bargaining solution. This threshold is ultimately determined by the relative utilitarian bargaining solution. From a mechanism design perspective, our results provide valuable information for a social planner, when implementing a bargaining solution for unequally powerful players.}}, author = {{Haake, Claus-Jochen and Streck, Thomas}}, keywords = {{Asymmetric bargaining power, Nash bargaining solution, Kalai-Smorodinsky bargaining solution}}, pages = {{17}}, title = {{{Distortion through modeling asymmetric bargaining power}}}, volume = {{148}}, year = {{2022}}, } @article{31881, author = {{Hoyer, Britta and De Jaegher, Kris}}, journal = {{International Journal of Game Theory}}, publisher = {{Springer}}, title = {{{Network Disruption and the Common-Enemy Effect}}}, doi = {{10.1007/s00182-022-00812-5}}, year = {{2022}}, } @article{33221, abstract = {{AbstractNon-pharmaceutical interventions are an effective strategy to prevent and control COVID-19 transmission in the community. However, the timing and stringency to which these measures have been implemented varied between countries and regions. The differences in stringency can only to a limited extent be explained by the number of infections and the prevailing vaccination strategies. Our study aims to shed more light on the lockdown strategies and to identify the determinants underlying the differences between countries on regional, economic, institutional, and political level. Based on daily panel data for 173 countries and the period from January 2020 to October 2021 we find significant regional differences in lockdown strategies. Further, more prosperous countries implemented milder restrictions but responded more quickly, while poorer countries introduced more stringent measures but had a longer response time. Finally, democratic regimes and stronger manifested institutions alleviated and slowed down the introduction of lockdown measures.}}, author = {{Redlin, Margarete}}, issn = {{0922-680X}}, journal = {{Journal of Regulatory Economics}}, keywords = {{Economics and Econometrics}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Differences in NPI strategies against COVID-19}}}, doi = {{10.1007/s11149-022-09452-9}}, year = {{2022}}, } @article{33220, abstract = {{AbstractWe provide a partial equilibrium model wherein AI provides abilities combined with human skills to provide an aggregate intermediate service good. We use the model to find that the extent of automation through AI will be greater if (a) the economy is relatively abundant in sophisticated programs and machine abilities compared to human skills; (b) the economy hosts a relatively large number of AI-providing firms and experts; and (c) the task-specific productivity of AI services is relatively high compared to the task-specific productivity of general labor and labor skills. We also illustrate that the contribution of AI to aggregate productive labor service depends not only on the amount of AI services available but on the endogenous number of automated tasks, the relative productivity of standard and IT-related labor, and the substitutability of tasks. These determinants also affect the income distribution between the two kinds of labor. We derive several empirical implications and identify possible future extensions.}}, author = {{Gries, Thomas and Naudé, Wim}}, issn = {{2510-5019}}, journal = {{Journal for Labour Market Research}}, keywords = {{General Medicine}}, number = {{1}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Modelling artificial intelligence in economics}}}, doi = {{10.1186/s12651-022-00319-2}}, volume = {{56}}, year = {{2022}}, } @article{33219, author = {{Gries, Thomas and Müller, Veronika and Jost, John T.}}, issn = {{1047-840X}}, journal = {{Psychological Inquiry}}, keywords = {{General Psychology}}, number = {{2}}, pages = {{65--83}}, publisher = {{Informa UK Limited}}, title = {{{The Market for Belief Systems: A Formal Model of Ideological Choice}}}, doi = {{10.1080/1047840x.2022.2065128}}, volume = {{33}}, year = {{2022}}, } @techreport{44091, abstract = {{We study the effects of product differentiation on the bundling incentives of a two-product retailer. Two monopolistic manufacturers each produce a differentiated good. One sells it to both retailers, while the other only supplies a single retailer. Retailers compete in prices. Retail bundling is profitable when the goods are close substitutes. Only then is competition so intense that the retailer uses bundling to relax competition both within and across product markets, despite an aggravation of the double marginalization problem. Our asymmetric market structure arises endogenously for the case of close substitutes. In this case, bundling reduces social welfare.}}, author = {{Endres-Fröhlich, Angelika Elfriede and Hehenkamp, Burkhard and Heinzel, Joachim}}, keywords = {{Retail bundling, upstream market power, double marginalization, product differentiation}}, pages = {{43}}, title = {{{The Impact of Product Differentiation on Retail Bundling in a Vertical Market}}}, year = {{2022}}, } @misc{42326, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Manipulation durch Fake-Bewertungen: Einfluss von Such- und Erfahrungsgütern auf das manipulative Verhalten des Verkäufers}}}, year = {{2022}}, } @misc{42322, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{An Analysis of Coalition Formation Methods to achieve Maximum Social Surplus}}}, year = {{2022}}, } @misc{42324, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Die Möglichkeiten der Blockchain-Technologie im Supply Chain Management - eine spieltheoretische Analyse}}}, year = {{2022}}, } @misc{42318, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Kindergarten Allocation and the Tradeoff between Stability and Diversity Considerations}}}, year = {{2022}}, } @misc{42319, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Effect of the Agent's bargaining positions in the efficiency of matching markets}}}, year = {{2022}}, } @misc{42323, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Stabile Zuordnung mit Paaren - Der neue NRMP Algorithmus}}}, year = {{2022}}, } @misc{42320, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{School choice with reserves and quotas}}}, year = {{2022}}, } @misc{42325, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Organisation von Zeitbörsen}}}, year = {{2022}}, } @article{30940, abstract = {{We analyse the two-dimensional Nash bargaining solution (NBS) by deploying the standard labour market negotiations model of McDonald and Solow (1981). We show that the two-dimensional bargaining problem can be decomposed into two one-dimensional problems, such that the two solutions together replicate the solution of the two-dimensional problem if the NBS is applied. The axiom of Independence of Irrelevant Alternatives is shown to be crucial for this type of decomposability. This result has significant implications for actual negotiations because it allows for the decomposition of a multi-dimensional bargaining problem into one-dimensional problems---and thus helps to facilitate real-world negotiations.}}, author = {{Haake, Claus-Jochen and Upmann, Thorsten and Duman, Papatya}}, issn = {{0347-0520}}, journal = {{Scandinavian Journal of Economics}}, keywords = {{Labour market negotiations, efficient bargains, Nash bargaining solution, sequential bargaining, restricted bargaining games}}, number = {{2}}, pages = {{403--440}}, publisher = {{Wiley}}, title = {{{Wage Bargaining and Employment Revisited: Separability and Efficiency in Collective Bargaining}}}, doi = {{https://doi.org/10.1111/sjoe.12518}}, volume = {{125}}, year = {{2022}}, } @article{33458, abstract = {{We study the effect of unemployment on cognitive abilities among individuals aged between 50 and 65 in Europe. To this end, we exploit plant closures and use flexible event-study estimations together with an experimentally elicited measure of fluid intelligence, namely word recall. We find that, within a time period of around eight years after the event of unemployment, cognitive abilities only deteriorate marginally — the effects are insignificant both in statistical and economic terms. We do, however, find significant effects of late-career unemployment on the likelihood to leave the labor force, and short-term effects on mental health problems such as depression and sleep problems.}}, author = {{Freise, Diana and Schmitz, Hendrik and Westphal, Matthias}}, journal = {{Journal of Health Economics}}, title = {{{Late-Career Unemployment and Cognitive Abilities}}}, doi = {{https://doi.org/10.1016/j.jhealeco.2022.102689}}, volume = {{86}}, year = {{2022}}, } @article{30235, author = {{Westphal, Matthias and Kamhöfer, Daniel A. and Schmitz, Hendrik}}, journal = {{Economic Journal}}, number = {{646}}, pages = {{2231--2272}}, title = {{{Marginal College Wage Premium under Selection into Employment}}}, doi = {{10.1093/ej/ueac021}}, volume = {{132}}, year = {{2022}}, } @article{15073, abstract = {{ In this paper, we analyze the effect of light conditions on road accidents and estimate the long run consequences of different time regimes for road safety. Identification is based on variation in light conditions induced by differences in sunrise and sunset times across space and time. We estimate that darkness causes annual costs of more than £500 million in Great Britain. By setting daylight saving time year-round 8 percent of these costs could be saved. Thus, focusing solely on the short run costs related to the transition itself underestimates the total costs of the current time regime. }}, author = {{Bünnings, Christian and Schiele, Valentin}}, issn = {{0034-6535}}, journal = {{The Review of Economics and Statistics}}, number = {{1}}, pages = {{165--176}}, title = {{{Spring Forward, Don't Fall Back: The Effect of Daylight Saving Time on Road Safety}}}, doi = {{10.1162/rest_a_00873}}, volume = {{103}}, year = {{2021}}, } @article{29152, abstract = {{AbstractIn this article we combine Debreu’s (Proc Natl Acad Sci 38(10):886–893, 1952) social system with Hurwicz’s (Econ Design 1(1):1–14, 1994; Am Econ Rev 98(3):577–585, 2008) ideas of embedding a “desired” game form into a “natural” game form that includes all feasible behavior, even if it is “illegal” according to the desired form. For the resulting socio-legal system we extend Debreu’s concepts of a social system and its social equilibria to a socio-legal system with its Debreu–Hurwicz equilibria. We build on a more general version of social equilibrium due to Shafer and Sonnenschein (J Math Econ 2(3):345–348, 1975) that also generalizes the dc-mechanism of Koray and Yildiz (J Econ Theory 176:479–502, 2018) which relates implementation via mechanisms with implementation via rights structures as introduced by Sertel (Designing rights: invisible hand theorems, covering and membership. Tech. rep. Mimeo, Bogazici University, 2001). In the second part we apply and illustrate these new concepts via an application in the narrow welfarist framework of two person cooperative bargaining. There we provide in a socio-legal system based on Nash’s demand game an implementation of the Nash bargaining solution in Debreu–Hurwicz equilibrium.}}, author = {{Haake, Claus-Jochen and Trockel, Walter}}, issn = {{1434-4742}}, journal = {{Review of Economic Design}}, publisher = {{Springer}}, title = {{{Socio-legal systems and implementation of the Nash solution in Debreu–Hurwicz equilibrium}}}, doi = {{10.1007/s10058-021-00278-z}}, year = {{2021}}, } @article{22715, abstract = {{AbstractUsing data from the German Socio-Economic Panel for 1984–2018, we analyze the intergenerational education mobility of immigrants in Germany by identifying the determinants of differences in educational stocks for first- and second-generation immigrants in comparison to individuals without a migration background. Our results show that on average, first-generation immigrants have fewer years of schooling than native-born Germans and have a disproportionate share of lower educational qualifications. This gap is strongly driven by age at immigration, with immigration age and education revealing a nonlinear relationship. While the gap is relatively small among individuals who migrate at a young age, integrating in the school system at secondary school age leads to large disadvantages. Examining the educational mobility of immigrants in Germany, we identify an inter-generational catch-up in education. The gap in education between immigrants and natives is reduced for the second generation. Finally, we find that country of origin differences can account for much of the education gap. While immigrants with an ethnic background closer to the German language and culture show the best education outcomes, immigrants from Turkey, Italy, and other southern European countries and especially the group of war refugees from Syria, Afghanistan, Iraq and other MENA countries, have the lowest educational attainment.}}, author = {{Gries, Thomas and Redlin, Margarete and Zehra, Moonum}}, issn = {{1488-3473}}, journal = {{Journal of International Migration and Integration}}, title = {{{Educational Assimilation of First-Generation and Second-Generation Immigrants in Germany}}}, doi = {{10.1007/s12134-021-00863-9}}, year = {{2021}}, } @article{23594, abstract = {{AbstractUsing time series data for the period 1959–2015, our empirical analysis examines the simultaneous effects of the individual components of the global carbon budget on temperature. Specifically, we explore the possible effects of carbon emissions caused by fossil fuel combustion, cement production, land-use change emissions, and carbon sinks (here in terms of land sink and ocean sink) on climate change. The simultaneous inclusion of carbon emissions and carbon sinks allows us to look at the coexistent and opposing effects of the individual components of the carbon budget and thus provides a holistic perspective from which to explore the relationship between the global carbon budget and global warming. The results reveal a significant positive effect of carbon emissions on temperature for both fossil fuels emissions and emissions from land-use change, confirming previous results concerning carbon dioxide and temperature. Further, while ocean sink does not seem to have a significant effect, we identify a temperature-decreasing effect for land sink.}}, author = {{Redlin, Margarete and Gries, Thomas}}, issn = {{0177-798X}}, journal = {{Theoretical and Applied Climatology}}, title = {{{Anthropogenic climate change: the impact of the global carbon budget}}}, doi = {{10.1007/s00704-021-03764-0}}, year = {{2021}}, } @misc{42317, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Die Aufteilung der Barentsseegebiete mithilfe des Adjusted Winner Verfahrens bei asymmetrischen Machtverhältnissen}}}, year = {{2021}}, } @misc{42315, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Versionisierung von Serviceleistungen auf Videoplattformen}}}, year = {{2021}}, } @misc{42321, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Kindergarten Allocation through Matching Mechanisms}}}, year = {{2021}}, } @misc{42309, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Faire Profitverteilung in Energienetzwerken - eine spieltheoretische Analyse von Microgrids}}}, year = {{2021}}, } @misc{42311, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{"First-Party-Content" auf zweiseitigen Märkten}}}, year = {{2021}}, } @misc{42314, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Stability in many-to-many matchings with contracts}}}, year = {{2021}}, } @misc{42313, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Preissetzungsstrategien für Neuprodukte}}}, year = {{2021}}, } @misc{42310, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Co-opetition in Two-Sided Markets}}}, year = {{2021}}, } @misc{42312, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Matching mit Minderheiten}}}, year = {{2021}}, } @misc{42316, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Piracy and Visioning}}}, year = {{2021}}, } @misc{42303, author = {{N., N.}}, publisher = {{Universität Paderborn}}, title = {{{Revenue Sharing Contracts: Horizontale Koordination in der E-Commerce-Logistik}}}, year = {{2021}}, } @article{45640, abstract = {{I study a dynamic variant of the Dixit–Stiglitz (Am Econ Rev 67(3), 1977) model of monopolistic competition by introducing price stickiness à la Fershtman and Kamien (Econometrica 55(5), 1987). The analysis is restricted to bounded quantity and price paths that fulfill the necessary conditions for an open-loop Nash equilibrium. I show that there exists a symmetric steady state and that its stability depends on the degree of product differentiation. When moving from complements to perfect substitutes, the steady state is either a locally asymptotically unstable (spiral) source, a stable (spiral) sink or a saddle point. I further apply the Hopf bifurcation theorem and prove the existence of limit cycles, when passing from a stable to an unstable steady state. Lastly, I provide a numerical example and show that there exists a stable limit cycle.}}, author = {{Hoof, Simon}}, issn = {{1573-2878}}, journal = {{Journal of Optimization Theory and Applications}}, number = {{2}}, publisher = {{Springer}}, title = {{{Dynamic Monopolistic Competition}}}, volume = {{189}}, year = {{2021}}, } @techreport{46540, abstract = {{Individual cognitive functioning declines over time. We seek to understand how adverse physical health shocks in older ages contribute to this development. By use of event-study methods and data from the USA, England and several countries in Continental Europe we find evidence that health shocks lead to an immediate and persistent decline in cognitive functioning. This robust finding holds in all regions representing different health insurance systems and seems to be independent of underlying individual demographic characteristics such as sex and age. We also ask whether variables that are susceptible to policy action can reduce the negative consequences of a health shock. Our results suggest that neither compulsory education nor retirement regulations moderate the effects, thus emphasizing the importance of maintaining good physical health in old age for cognitive functioning.}}, author = {{Schiele, Valentin and Schmitz, Hendrik}}, keywords = {{Cognitive decline, health shocks, retirement, education, event study}}, publisher = {{RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen}}, title = {{{Understanding cognitive decline in older ages: The role of health shocks}}}, volume = {{919}}, year = {{2021}}, } @techreport{46537, abstract = {{We study effects of retirement on cognitive abilities (up to ten years after retirement) using data from 21 countries in Continental Europe, England, and the US, and exploiting early-retirement thresholds for identification. For this purpose, combines event-study estimations with the marginal treatment effect framework to allow for effect heterogeneity. This helps to decompose event-study estimates into true medium-run effects of retirement and effects driven by differential retirement preferences. Our results suggest considerable negative effects of retirement on cognitive abilities. We also detect substantial effect heterogeneity: Those who retire as early as possible are not affected while those who retire later exhibit negative effects.}}, author = {{Schmitz, Hendrik and Westphal, Matthias}}, keywords = {{Cognitive abilities, retirement, event study, marginal treatment effects}}, publisher = {{RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen}}, title = {{{The dynamic and heterogeneous effects of retirement on cognitive decline}}}, volume = {{918}}, year = {{2021}}, } @inproceedings{22218, author = {{Krauter, Stefan and Böcker, Joachim and Freitag, Christine and Hehenkamp, Burkhard and Hilleringmann, Ulrich and Temmen, Katrin and Klaus, Tobias and Rohrer, Nicolaus and Lehmann, Sven}}, booktitle = {{Tagungsband des 36. PV-Symposiums, 18.-26 Mai 2021}}, isbn = {{978-3-948176-14-3}}, keywords = {{Art-D, Afrika, Resilienz, Resilience, Grid stability, robustness, microgrids}}, location = {{Staffelstein / online}}, pages = {{305--309}}, publisher = {{Conexio}}, title = {{{Projekt Art-D Grids: Nachhaltige und stabile Microgrids in Afrika - eine Plattform für Forschung und Lehre für die Entwicklung}}}, year = {{2021}}, } @article{17072, author = {{Feng, Yuanhua and Gries, Thomas and Fritz, Marlon}}, issn = {{1048-5252}}, journal = {{Journal of Nonparametric Statistics}}, pages = {{510--533}}, title = {{{Data-driven local polynomial for the trend and its derivatives in economic time series}}}, doi = {{10.1080/10485252.2020.1759598}}, year = {{2020}}, } @article{17074, author = {{Gries, Thomas and Grundmann, Rainer}}, issn = {{1363-6669}}, journal = {{Review of Development Economics}}, pages = {{644--667}}, title = {{{Modern sector development: The role of exports and institutions in developing countries}}}, doi = {{10.1111/rode.12663}}, year = {{2020}}, } @article{16273, abstract = {{This study examines the gender gap in competitiveness in an educational setting and tests whether this gap depends on the difficulty of the task at hand. For this purpose, we administered a series of experiments during the final exam of a university course. We confronted three cohorts of undergraduate students with a set of bonus questions and the choice between an absolute and a tournament grading scheme for these questions. To test the moderating impact of task difficulty, we (randomly) varied the difficulty of the questions between treatment groups. We find that, on average, women are significantly less likely to select the tournament scheme. However, the results show that the gender gap in tournament entry is sizable when the questions are relative easy, but much smaller and statistical insignificant when the questions are difficult.}}, author = {{Hoyer, Britta and van Huizen, Thomas and Keijzer, Linda and Rezaei, Sarah and Rosenkranz, Stephanie and Westbrock, Bastian }}, journal = {{Labour Economics}}, title = {{{Gender, competitiveness, and task difficulty: Evidence from the field}}}, doi = {{10.1016/j.labeco.2020.101815}}, year = {{2020}}, } @article{16334, abstract = {{We analyze the actual behavior of agents in a matching mechanism, using data from a clearinghouse at the Faculty of Business Administration and Economics at a German university, where a variant of the Boston mechanism is used. We supplement this data with data generated in a survey among the students who participated in the clearinghouse. We find that under the current mechanism over 74% of students act strategically by misrepresenting at least one of their preferences. Nevertheless, not all students are able to improve their outcome by doing so. We show that this is mainly due to the incomplete information of students and naiveté. Sophisticated students actually reach significantly better outcomes than naive students. Thus, we find evidence that naive students are exploited by sophisticated students in an incomplete information setting.}}, author = {{Hoyer, Britta and Stroh-Maraun, Nadja}}, journal = {{Games and Economic Behavior}}, pages = {{453 -- 481}}, title = {{{Matching Strategies of Heterogeneous Agents under Incomplete Information in a University Clearinghouse}}}, doi = {{10.1016/j.geb.2020.03.006}}, volume = {{121}}, year = {{2020}}, }