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排序方式: 共有593条查询结果,搜索用时 15 毫秒
21.
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
22.
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
23.
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
24.
Microfinance enables poor women to engage in income-generating activities, which helps them become financially independent, strengthening their decision-making power within the household and society. Consequently, microfinance has the potential to reduce gender inequality (GI). Case-study evidence from across the developing world both supports and contradicts this hypothesis. We therefore revisit this issue using macroeconomic cross-country panel data for 64 developing economies over the period 2003–2014. We find that women’s participation in microfinance is associated with a reduction in GI. However, regional interactions reveal that cultural factors are likely to influence the GI–microfinance nexus. 相似文献
25.
We make the point that preferences for democracy are positively correlated with level of education. This correlation is robust even after controlling for a range of personal characteristics, including country of residence, income, age, or using different definitions of preferences for democracy or using instrumental variables. Interestingly, the results hold across countries with different level of democracy. We use data from World Values Surveys and show that our results are consistent with a simple theoretical model in which education makes political accountability easier. 相似文献
26.
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
27.
Antonio Rico Manuel Noguera José Luis Garrido Kawtar Benghazi Joseph Barjis 《Enterprise Information Systems》2016,10(4):400-421
Multi-tenant architectures (MTAs) are considered a cornerstone in the success of Software as a Service as a new application distribution formula. Multi-tenancy allows multiple customers (i.e. tenants) to be consolidated into the same operational system. This way, tenants run and share the same application instance as well as costs, which are significantly reduced. Functional needs vary from one tenant to another; either companies from different sectors run different types of applications or, although deploying the same functionality, they do differ in the extent of their complexity. In any case, MTA leaves one major concern regarding the companies’ data, their privacy and security, which requires special attention to the data layer. In this article, we propose an extended data model that enhances traditional MTAs in respect of this concern. This extension – called multi-target – allows MT applications to host, manage and serve multiple functionalities within the same multi-tenant (MT) environment. The practical deployment of this approach will allow SaaS vendors to target multiple markets or address different levels of functional complexity and yet commercialise just one single MT application. The applicability of the approach is demonstrated via a case study of a real multi-tenancy multi-target (MT2) implementation, called Globalgest. 相似文献
28.
Gustavo Canavire‐Bacarreza Alberto Chong Fernando Ríos‐Avila Mnica Yez‐Pagans 《Review of Development Economics》2020,24(2):424-447
We take advantage of repeated cross‐sectional household surveys and a sharp discontinuity created by the introduction of an unconditional cash transfer to elders in Bolivia, to evaluate its impact on educational expenditures on children within a household. We find positive and significant impacts of the program at the aggregate level. We also find that the program has stronger effects on indigenous populations as well as on female and rural populations. Our results are robust to a series of falsification tests, survey structure, model specification, and estimation methods. 相似文献
29.
30.
Alberto Bagnai Christian Alexander Mongeau Ospina 《Journal of Economic Policy Reform》2018,21(4):353-367
Productivity slowdown plays a prominent role in the build-up of the euro area crisis. This phenomenon affected member countries asymmetrically, causing divergence in their productivity trends. Recent research traces this divergence back to monetary integration. After reviewing the arguments that link real “disintegration” of the euro area to its monetary integration, we assess them empirically by modelling the evolution of labour productivity using a panel of sectorial data. The results indicate that monetary unification may actually have fostered divergence in productivity trends, and suggest some economic policy measures that could prevent further divergence. 相似文献