TY - GEN
AU - N., N.
ID - 42316
TI - Piracy and Visioning
ER -
TY - GEN
AU - N., N.
ID - 42303
TI - Revenue Sharing Contracts: Horizontale Koordination in der E-Commerce-Logistik
ER -
TY - JOUR
AB - I study a dynamic variant of the DixitâStiglitz (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.
AU - Hoof, Simon
ID - 45640
IS - 2
JF - Journal of Optimization Theory and Applications
SN - 1573-2878
TI - Dynamic Monopolistic Competition
VL - 189
ER -
TY - GEN
AB - 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.
AU - Schiele, Valentin
AU - Schmitz, Hendrik
ID - 46540
KW - Cognitive decline
KW - health shocks
KW - retirement
KW - education
KW - event study
TI - Understanding cognitive decline in older ages: The role of health shocks
VL - 919
ER -
TY - GEN
AB - 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.
AU - Schmitz, Hendrik
AU - Westphal, Matthias
ID - 46537
KW - Cognitive abilities
KW - retirement
KW - event study
KW - marginal treatment effects
TI - The dynamic and heterogeneous effects of retirement on cognitive decline
VL - 918
ER -
TY - CONF
AU - Krauter, Stefan
AU - Böcker, Joachim
AU - Freitag, Christine
AU - Hehenkamp, Burkhard
AU - Hilleringmann, Ulrich
AU - Temmen, Katrin
AU - Klaus, Tobias
AU - Rohrer, Nicolaus
AU - Lehmann, Sven
ID - 22218
KW - Art-D
KW - Afrika
KW - Resilienz
KW - Resilience
KW - Grid stability
KW - robustness
KW - microgrids
SN - 978-3-948176-14-3
T2 - Tagungsband des 36. PV-Symposiums, 18.-26 Mai 2021
TI - Projekt Art-D Grids: Nachhaltige und stabile Microgrids in Afrika - eine Plattform für Forschung und Lehre für die Entwicklung
ER -
TY - JOUR
AU - Feng, Yuanhua
AU - Gries, Thomas
AU - Fritz, Marlon
ID - 17072
JF - Journal of Nonparametric Statistics
SN - 1048-5252
TI - Data-driven local polynomial for the trend and its derivatives in economic time series
ER -
TY - JOUR
AU - Gries, Thomas
AU - Grundmann, Rainer
ID - 17074
JF - Review of Development Economics
SN - 1363-6669
TI - Modern sector development: The role of exports and institutions in developing countries
ER -
TY - JOUR
AB - 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.
AU - Hoyer, Britta
AU - van Huizen, Thomas
AU - Keijzer, Linda
AU - Rezaei, Sarah
AU - Rosenkranz, Stephanie
AU - Westbrock, Bastian
ID - 16273
JF - Labour Economics
TI - Gender, competitiveness, and task difficulty: Evidence from the field
ER -
TY - JOUR
AB - 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.
AU - Hoyer, Britta
AU - Stroh-Maraun, Nadja
ID - 16334
JF - Games and Economic Behavior
TI - Matching Strategies of Heterogeneous Agents under Incomplete Information in a University Clearinghouse
VL - 121
ER -
TY - JOUR
AU - Schmitz, Hendrik
AU - Stroka‐Wetsch, Magdalena A.
ID - 30234
IS - 7
JF - Health Economics
KW - Health Policy
SN - 1057-9230
TI - Determinants of nursing home choice: Does reported quality matter?
VL - 29
ER -
TY - JOUR
AB - Much work on innovation strategy assumes or theorizes that competition in innovation elicits duplication of research and that disclosure decreases such duplication. We validate this empirically using the American Inventors Protection Act (AIPA), three complementary identification strategies, and a new measure of blocked future patent applications. We show that AIPA—intended to reduce duplication, through default disclosure of patent applications 18 months after filing—reduced duplication in the U.S. and European patent systems. The blocking measure provides a clear and micro measure of technological competition that can be aggregated to facilitate the empirical investigation of innovation, firm strategy, and the positive and negative externalities of patenting. This paper was accepted by Joshua Gans, business strategy.
AU - Lück, Sonja
AU - Balsmeier, Benjamin
AU - Seliger, Florian
AU - Fleming, Lee
ID - 31802
IS - 6
JF - Management Science
KW - Management Science and Operations Research
KW - Strategy and Management
SN - 0025-1909
TI - Early Disclosure of Invention and Reduced Duplication: An Empirical Test
VL - 66
ER -
TY - JOUR
AU - Haake, Claus-Jochen
AU - Trockel, Walter
ID - 34115
IS - 1-2
JF - Homo Oeconomicus
KW - Industrial and Manufacturing Engineering
KW - Environmental Engineering
SN - 0943-0180
TI - Introduction to the Special Issue “Bargaining”
VL - 37
ER -
TY - JOUR
AB - Many countries have opened their health care markets to private for-profit providers, aiming to promote quality and choice for patients. The prices are regulated and providers compete in location and quality. We show that whereas opening a public hospital market typically raises quality, the private provider strategically locates towards the corner of the market to avoid costly quality competition. Social welfare depends on the size of the regulator's budget and on the altruism of the public provider. If the budget is large, high quality results and welfare is highest in a duopoly whenever entry is optimal. If the budget is small, quality levels in a duopoly mirror the quality level in a monopoly. It can be optimal for the regulator not to use the full budget.
AU - Hehenkamp, Burkhard
AU - Kaarbøe, Odvar M.
ID - 17350
JF - Journal of Economic Behavior & Organization
TI - Location Choice and Quality Competition in Mixed Hospital Markets
VL - 177
ER -
TY - JOUR
AU - Gries, Thomas
AU - Redlin, Margarete
ID - 17086
JF - International Economics and Economic Policy
SN - 1612-4804
TI - Trade and economic development: global causality and development- and openness-related heterogeneity
VL - 17
ER -
TY - GEN
AU - N., N.
ID - 42278
TI - Zuordnungsverfahren für Tauschbörsen
ER -
TY - GEN
AU - N., N.
ID - 42307
TI - Weitsichtigkeit zur Bildung stabiler Koalitionen - eine spieltheoretische Analyse
ER -
TY - GEN
AU - N., N.
ID - 42308
TI - Verhandeltes strategisches Verhalten
ER -
TY - GEN
AU - N., N.
ID - 42301
TI - Kronzeugenprogramme zur Aufdeckung von Kartellen - Eine spieltheoretische Analyse
ER -
TY - GEN
AU - N., N.
ID - 42299
TI - Eine ökonomische Analyse der Piraterie in zweiseitigen Softwaremärkten
ER -