@techreport{Sanner2005,
  type      = {Working Paper},
  author    = {Sanner, Helge},
  title     = {Price responses to market entry with and without endogenous product choice},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-14399},
  year      = {2005},
  abstract  = {Textbook wisdom says that competition yields lower prices and higher consumer surplus than monopoly. We show in two versions of a simple location-product differentiation model with and without endogenous choice of products that these two results have to be qualified. In both models, more than half of the reasonable parameter values lead to higher prices with duopoly than with monopoly. If the product characteristics are exogenous to the firms, consumers may even be be better off with monopoly in average.},
  language  = {en}
}
@techreport{Kauffmann2005,
  type      = {Working Paper},
  author    = {Kauffmann, Albrecht},
  title     = {Structural change during transition},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-14304},
  year      = {2005},
  abstract  = {This paper analyses the structural change in Russia during the transition from the planned to a market economy. With regard to the famous three sector hypothesis, broad economic sectors were formed as required by this theory. The computation of their shares at GNP at market prices using Input-Output tables, and the adjustment of results from distortions, generated as side effects of tax avoidance practices, shows results that clearly reject claims that Russia would be on the road to a post-industrial service economy. Instead, at least until 2001, a tendency of "primarisation" could be observed, that presents Russia closer to less-developed countries.},
  language  = {en}
}
@techreport{Sanner2005,
  type      = {Working Paper},
  author    = {Sanner, Helge},
  title     = {Instability in competition},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-14299},
  year      = {2005},
  abstract  = {In this paper we show that Puu (2002) does not provide a stable solution to the location game, according to his own definition of stability. If the usual two-stage game is considered, where in the first stage a location is chosen once and forever, and in the second stage prices are determined, the equilibrium proves stable for a sizeable interval of parameters, however. Even though this procedure is most common in analyzing Hotelling's location problem, it is not satisfying because it exhibits an inconsistent informational structure. The search for a better concept of stability is imperative.},
  language  = {en}
}
@techreport{Eberhardt2005,
  type      = {Working Paper},
  author    = {Eberhardt, Bj{\"o}rn},
  title     = {Public pensions in the U.S.},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-9058},
  year      = {2005},
  abstract  = {Contents: The Public Old Age Insurance of the U.S. -Historical overview -Technical details -Individual equity and social adequacy The Economic Problem of Old Age -Risks and economic security -Old age, retirement, and idividual precaution -Insurance markets, market failures, and social insurance -Options for public pension systems The Problems of Social Security -The financial balance of OASDI -Causes of the long-run problems -Rates of return -Conclusion - The case for Social Security reform Proposed Remedies -Full, partial, or no privatization? -The President's Commission to Strengthen Social Security -Kotlikoff's Personal Security System -The Diamond-Orszag Three-Part plan},
  language  = {en}
}
@techreport{Drechsler2005,
  type      = {Working Paper},
  author    = {Drechsler, Denis},
  title     = {Unemployment in Germany and the Eurosclerosis debate},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-9036},
  year      = {2005},
  abstract  = {Many European countries have experienced a significant increase of unemployment in recent years. This paper reviews several theoretical models that try to explain this phenomenon. Predominantly, these models claim a link between the poor performance of European labor markets and the high level of market regulation. Commonly referred to as the Eurosclerosis debate, prominent approaches consider insider-outsider relationships, search-models, and the influence of hiring and firing costs on equilibrium employment. The paper presents empirical evidence of each model and studies the relevance of the identified rigidities as a determinant of high unemployment in Europe. Furthermore, a case study analyzes the unemployment problem in Germany and critically discusses new reform efforts. In particular this section analyzes whether the recently enacted Hartz reforms can induce higher employment.},
  language  = {en}
}