@article{1922, abstract = {{We construct two-player two-strategy game-theoretic models of by-product mutualism, where our focus lies on the way in which the probability of cooperation among players is affected by the degree of adversity facing the players. In our first model, cooperation consists of the production of a public good, and adversity is linked to the degree of complementarity of the players׳ efforts in producing the public good. In our second model, cooperation consists of the defense of a public, and/or a private good with by-product benefits, and adversity is measured by the number of random attacks (e.g., by a predator) facing the players. In both of these models, our analysis confirms the existence of the so-called boomerang effect, which states that in a harsh environment, the individual player has few incentives to unilaterally defect in a situation of joint cooperation. Focusing on such an effect in isolation leads to the "common-enemy" hypothesis that a larger degree of adversity increases the probability of cooperation. Yet, we also find that a sucker effect may simultaneously exist, which says that in a harsh environment, the individual player has few incentives to unilaterally cooperate in a situation of joint defection. Looked at in isolation, the sucker effect leads to the competing hypothesis that a larger degree of adversity decreases the probability of cooperation. Our analysis predicts circumstances in which the "common enemy" hypothesis prevails, and circumstances in which the competing hypothesis prevails.}}, author = {{De Jaegher, Kris and Hoyer, Britta}}, issn = {{0022-5193}}, journal = {{Journal of Theoretical Biology}}, pages = {{82--97}}, publisher = {{Elsevier BV}}, title = {{{By-product mutualism and the ambiguous effects of harsher environments – A game-theoretic model}}}, doi = {{10.1016/j.jtbi.2015.12.034}}, volume = {{393}}, year = {{2016}}, } @article{2688, author = {{Schiele, Valentin and Schmitz, Hendrik}}, journal = {{Journal of Health Economics}}, pages = {{59--69}}, title = {{{Quantile treatment effects of job loss on health}}}, doi = {{10.1016/j.jhealeco.2016.06.005}}, volume = {{49}}, year = {{2016}}, } @article{3083, author = {{Herr, Annika and Nguyen, Thu-Van and Schmitz, Hendrik}}, journal = {{Health Policy}}, number = {{10}}, pages = {{1162--1170}}, title = {{{Public reporting and the quality of care of German nursing homes}}}, doi = {{10.1016/j.healthpol.2016.09.004 }}, volume = {{120}}, year = {{2016}}, } @article{2956, author = {{Göpffarth, Dirk and Kopetsch, Thomas and Schmitz, Hendrik}}, journal = {{Health economics}}, number = {{7}}, pages = {{801--815}}, title = {{{Determinants of regional variation in health expenditures in Germany}}}, doi = {{10.1002/hec.3183}}, volume = {{25}}, year = {{2016}}, } @article{15259, author = {{Decker, Simon and Schmitz, Hendrik}}, issn = {{0167-6296}}, journal = {{Journal of Health Economics}}, pages = {{156--170}}, title = {{{Health shocks and risk aversion}}}, doi = {{10.1016/j.jhealeco.2016.09.006}}, volume = {{156-170}}, year = {{2016}}, } @article{2815, author = {{Gries, Thomas and Naudé, Wim and Bilkic, Natascha}}, journal = {{The Quarterly Review of Economics and Finance}}, pages = {{1--17}}, title = {{{Playing the Lottery or Dressing Up? A Model of Firm-Level Heterogeneity and the Decision to Export}}}, doi = {{10.1016/j.qref.2015.02.010}}, volume = {{58}}, year = {{2015}}, } @article{2816, author = {{Gries, Thomas and Feng, Yuanhua and Guo, Zhichao}}, journal = {{China Agricultural Economic Review}}, number = {{2}}, pages = {{262--279}}, title = {{{Changes of China’s agri-food exports to Germany caused by its accession to WTO and the 2008 financial crisis}}}, doi = {{10.1108/CAER-11-2013-0152}}, volume = {{7}}, year = {{2015}}, } @article{3295, author = {{Gries, Thomas and Palnau, Irene}}, journal = {{Peace Economics, Peace Science and Public Policy}}, number = {{ 4}}, pages = {{467 --478}}, title = {{{Sustaining Civil Peace: a configurational comparative analysis}}}, doi = {{10.1515/peps-2015-0020}}, volume = {{21}}, year = {{2015}}, } @article{3296, author = {{Gries, Thomas and Meierrieks, Daniel and Redlin, Margarete}}, journal = {{Oxford Economic Papers}}, number = {{1}}, pages = {{83 -- 103}}, title = {{{Oppressive Governments, Dependence on the United States and Anti-American Terrorism}}}, doi = {{10.1093/oep/gpu038}}, volume = {{67}}, year = {{2015}}, } @article{491, abstract = {{In the framework of spatial competition, two or more players strategically choose a locationin order to attract consumers. It is assumed standardly that consumers with the same favorite location fully agree on the ranking of all possible locations. To investigate the necessity of this questionable and restrictive assumption, we model heterogeneity in consumers’ distance perceptions by individual edge lengths of a given graph. A profile of location choices is called a “robust equilibrium” if it is a Nash equilibrium in several games which differ only by the consumers’ perceptions of distances. For a finite number of players and any distribution of consumers, we provide a full characterization of all robust equilibria and derive structural conditions for their existence. Furthermore, we discuss whether the classical observations of minimal differentiation and inefficiency are robust phenomena. Thereby, we find strong support for an old conjecture that in equilibrium firms form local clusters.}}, author = {{Buechel, Berno and Röhl, Nils}}, journal = {{European Journal of Operational Research}}, number = {{2}}, pages = {{505--517}}, publisher = {{Elsevier}}, title = {{{Robust Equilibria in Location Games}}}, doi = {{10.1016/j.ejor.2014.07.019}}, volume = {{240}}, year = {{2015}}, } @article{5239, author = {{Schmitz, Hendrik}}, journal = {{Patient Gesundheitswesen – Mission 2030 Unsere gemeinsame Verantwortung die Zukunft zu gestalten}}, publisher = {{Quintessenz Verlags-GmbH}}, title = {{{Rationalisierung vs. Rationierung Ist die Rationierung unvermeidbar? }}}, year = {{2015}}, } @article{2957, author = {{Schmitz, Hendrik and Westphal, Matthias}}, journal = {{Journal of Health Economics}}, pages = {{174--185}}, title = {{{Short-and medium-term effects of informal care provision on female caregivers’ health}}}, doi = {{10.1016/j.jhealeco.2015.03.002}}, volume = {{42}}, year = {{2015}}, } @article{2522, author = {{Brangewitz, Sonja and Gamp, Jan-Philip}}, issn = {{0938-2259}}, journal = {{Economic Theory}}, number = {{3}}, pages = {{529--554}}, publisher = {{Springer Nature}}, title = {{{Competitive outcomes and the inner core of NTU market games}}}, doi = {{10.1007/s00199-014-0846-7}}, volume = {{57}}, year = {{2014}}, } @article{2819, author = {{Gries, Thomas and Grundmann, Rainer}}, journal = {{Journal of Population Economics}}, number = {{4}}, pages = {{1165--1186}}, title = {{{Trade and fertility in the developing world: the impact of trade and trade structure}}}, doi = {{10.1007/s00148-014-0508-x}}, volume = {{27}}, year = {{2014}}, } @article{2842, author = {{Gries, Thomas and Dung, Ha Van}}, journal = {{Modern Economy}}, pages = {{878--894}}, title = {{{Household Savings and Productive Capital Formation in Rural Vietnam: Insurance vs. Social Network}}}, doi = {{10.4236/me.2014.58081}}, volume = {{5}}, year = {{2014}}, } @article{2709, abstract = {{This paper studies welfare consequences of consumer-side market transparency with endogenous entry of firms. Different from most studies, we consider the unique symmetric entry equilibrium, which is in mixed strategies. We identify two effects of market transparency on welfare: a competition effect and a novel market-structure effect. We show, surprisingly, that for almost all demand functions the negative market-structure effect eventually dominates the positive competition effect as the market becomes increasingly transparent. Consumer-side market transparency can therefore be socially excessive even without collusion. The only exception among commonly used demand functions is the set of constant demand functions. }}, author = {{Gu, Yiquan and Hehenkamp, Burkhard}}, issn = {{0932-4569}}, journal = {{Journal of Institutional and Theoretical Economics JITE}}, number = {{2}}, pages = {{225--248}}, publisher = {{Mohr Siebeck}}, title = {{{Too Much of a Good Thing? Welfare Consequences of Market Transparency}}}, doi = {{10.1628/093245614x13895979380392}}, volume = {{170}}, year = {{2014}}, } @article{1923, abstract = {{How is collective defence by players affected when they face a threat from an intelligent attacker rather than a natural threat? This paper analyses this question using a game-theoretic model. Facing an intelligent attacker has an effect if players move first and visibly set their defence strategies, thereby exposing any players who do not defend, and if the attacker is, moreover, not able to commit to a random attack. Depending on the parameters of the game, the presence of an intelligent attacker either increases the probability that players jointly defend (where such joint defence either does or does not constitute a utilitarian optimum), or decreases the probability that players jointly defend (even though joint defence is a utilitarian optimum).}}, author = {{De Jaegher, Kris and Hoyer, Britta}}, issn = {{1024-2694}}, journal = {{Defence and Peace Economics}}, number = {{5}}, pages = {{644--664}}, publisher = {{Informa UK Limited}}, title = {{{Collective action and the common enemy effect}}}, doi = {{10.1080/10242694.2014.925676}}, volume = {{27}}, year = {{2014}}, } @article{5241, author = {{Schmitz, Hendrik and Augurzky, B. and Roppel, U.}}, journal = {{RWI Position}}, title = {{{Kehrtwende in der Gesundheitspolitik - Unnötige Abkehr von einer erfolgreichen Reform zur Finanzierung der gesetzlichen Krankenversicherung}}}, volume = {{59}}, year = {{2014}}, } @article{2959, author = {{Mayrhofer, Thomas and Schmitz, Hendrik}}, journal = {{Journal of Population Economics}}, number = {{3}}, pages = {{841--856}}, title = {{{Testing the relationship between income inequality and life expectancy: A simple correction for the aggregation effect when using aggregated data}}}, doi = {{10.1007/s00148-013-0483-7}}, volume = {{27}}, year = {{2014}}, } @article{2960, author = {{Keese, Matthias and Schmitz, Hendrik}}, journal = {{Review of Income and Wealth}}, number = {{3}}, pages = {{525--541}}, title = {{{Broke, ill, and obese: is there an effect of household debt on health?}}}, doi = {{10.1111/roiw.12002}}, volume = {{60}}, year = {{2014}}, }