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1.
Alberto Martin 《Journal of Economic Theory》2009,144(4):1572-1588
This paper characterizes the relationship between entrepreneurial wealth and aggregate investment under adverse selection. Its main finding is that such a relationship need not be monotonic. In particular, three results emerge from the analysis: (i) pooling equilibria, in which investment is independent of entrepreneurial wealth, are more likely to arise when entrepreneurial wealth is relatively low; (ii) separating equilibria, in which investment is increasing in entrepreneurial wealth, are most likely to arise when entrepreneurial wealth is relatively high and; (iii) for a given interest rate, an increase in entrepreneurial wealth may generate a discontinuous fall in investment. 相似文献
2.
Richard R. Barichello Alex McCalla Alberto Valdes 《American journal of agricultural economics》2003,85(3):674-678
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Alberto MORTARA 《Annals of Public and Cooperative Economics》1985,56(1-2):177-179
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Joseph P. Byrne Alexandros Kontonikas Alberto Montagnoli 《Scottish journal of political economy》2010,57(1):33-47
This paper contrasts the time‐series properties of aggregate and disaggregate UK inflation. While aggregate inflation is found to be non‐stationary, unit root rejection frequencies are increasing when we use more disaggregate data. Structural break analysis suggests that structural shifts in monetary policy could alter inflation persistence. Additionally, panel evidence indicates that the unit root hypothesis can be rejected for sectoral inflation rates. Finally, we compare the persistence properties of UK inflation, finding statistically significant differences between aggregate and disaggregate series. Our analysis suggests that aggregation matters, which has important implications for econometric analysis and the conduct of monetary policy. 相似文献
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Alberto Martin 《Economic Theory》2007,31(2):371-386
Dubey and Geanakoplos (Q J Econ 117:1529–1570, 2002) have developed a theory of competitive pooling, which incorporates adverse
selection and signaling into general equilibrium. By recasting the Rothschild–Stiglitz model of insurance in this framework,
they find that a separating equilibrium always exists and is unique.
We prove that their uniqueness result is not a consequence of the framework, but rather of their definition of refined equilibria.
When other types of perturbations are used, the model allows for many pooling allocations to be supported as such: in particular,
this is the case for pooling allocations that Pareto dominate the separating equilibrium. 相似文献
9.
Many states in the US have considered adopting ‘English-only’ legislation since the early 1980s. This paper argues that this legislation has a variety of expected and unexpected outcomes. Using the 1980 and 1990 Integrated Public Use Microdata Series (IPUMS), this study finds that Asian immigrants in general and Hispanic immigrants who arrived to the US prior to 1970 acquired more English fluency on average during the 1980s when residing in states that passed English-only (EO) legislation compared to their similar peers. The passage of such legislation also appears to have distorted residence decisions as well as the relative quality of immigrants between EO and non-EO states. 相似文献
10.
We consider general economies in which rational agents interact locally. The local aspect of the interactions is designed to represent in a simple abstract way social interactions, that is, socioeconomic environments in which markets do not mediate all of agents’ choices, which might be in part determined, for instance, by family, peer group, or ethnic group effects. We study static as well as dynamic infinite horizon economies; we allow for economies with incomplete information, and we consider jointly global and local interactions, to integrate e.g., global externalities and markets with peer and group effects. We provide conditions under which such economies have rational expectations equilibria. We illustrate the effects of local interactions when agents are rational by studying in detail the equilibrium properties of a simple economy with quadratic preferences which captures, in turn, local preferences for conformity, habit persistence, and preferences for status or adherence to aggregate norms of behavior. 相似文献