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991.
Ugo Merlone 《Managerial and Decision Economics》2001,22(6):333-337
Some models of industries with horizontal shareholding interlocks are generalized. First, we consider industries where firms exhibit different technologies and more general market demand functions. The cartelizing effects of financial interlocks are examined using both the Lerner index and the Herfindahl–Hirshman index. Furthermore, the model is extended to consider multiproduct oligopolies. We find a compact expression for the Lerner index and study the cartelizing effects of such an industry. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
992.
This paper presents empirical methods for studying a class of local interactions models in which agents’ transitions are affected by their neighbors’ states. We consider an application to urban unemployment and social networks in job search using publicly available cross-section and retrospective data. Most links in our model are local, but some span an entire metropolitan area. Our methods are designed to accommodate the presence of strong cross-sectional dependence arising from these few cross-metro-area links. We also present simple methods to compare data and model spell distributions and to illustrate the model's dynamic properties. 相似文献
993.
Firms agglomeration and unions 总被引:1,自引:0,他引:1
Economic geography models predict the agglomeration of manufacturing activies only if the workforce is mobile. Still, as the E.U.'s experience shows, core-periphery patterns exist even though the workforce is rather immobile. The paper provides a theoretical explanation for such core-periphery patterns through the effect that unions have on firms’ incentive to agglomerate in a region. The paper offers fully analytical results about location equilibria and some interesting welfare properties. 相似文献
994.
Abstract. We investigate expenditure behaviour of school-aged children using child diary information contained in the British Family Expenditure Survey. The estimates from an Almost Ideal Demand System (AIDS) for child expenditure suggest that drinks, sweets, books, and toys are 'normal' goods for children, but clothes, travel, leisure and vice products are 'luxury' items with income elasticities greater than one. Being a lone-parent child and having a working mother are important factors in determining child expenditure decisions. Importantly, a higher parental budget share on any given commodity is typically associated with an increased child budget share on the same commodity. 相似文献
995.
The responsiveness to information is thought to be one channel through which education affects health outcomes. This paper tests this hypothesis by examining the effectiveness of an information campaign that aims at preventing the HIV/AIDS epidemic in Uganda. It uses individual level data from a cohort study following and testing the general population of a cluster of villages in rural Uganda over 12 years and shows that, after more than a decade of prevention campaigns about the dangers of the epidemic, there has been a substantial evolution in the HIV/education gradient. Early in the epidemic, in 1990, there was no robust relation between HIV/AIDS and education. In 2000, among young females, education is associated with a lower risk of being HIV positive. Results on HIV incidence in a duration framework confirm that finding by establishing that, for young women, education reduces the probability of seroconversion. These findings reveal that educated women have been more responsive to the HIV/AIDS information campaigns. The analysis of sexual behavior reinforces that conclusion: condom use is associated positively with schooling levels. 相似文献
996.
This paper is dedicated to analysing the conditions for weak exogeneity in partially nonstationary models. After adopting
a particular identification regime which is based on a triangularization of the parameters of the cointegration relations,
we show that the conditions for weak exogeneity developed in the literature can be stated in terms of the parameters of the
so-called structural form. This alternative presentation of the conditions permits new interpretations and provides fresh
insights on how to test the exogeneity hypothesis. 相似文献
997.
The present paper analyses policy competition for foreign direct investment between countries of different size and different market structure. We demonstrate how policy competition affects the location decision of the foreign investor and derive welfare implications. The key variables in our analysis are intra-regional trade costs, differences in market size, and minimum wages. 相似文献
998.
Asset pricing theory hypothesizes that investors are only interested in portfolios; individual securities are evaluated only in terms of their contribution to portfolio risk and return. Yet, standard financial market design is that of parallel, unconnected markets, whereby investors cannot submit orders in one market conditional on events in others. When markets are thin, this exposes them to substantial execution risk. Fear of ending up with unbalanced portfolios after trading may even keep investors from submitting orders, further eroding liquidity and the ability of markets to equilibrate. The suggested solution is a portfolio trading mechanism referred to as combined-value trading (CVT). Investors are allowed to submit orders for packages of securities and the system matches trades and computes prices by optimally combining portfolio orders in an open book. We study the performance of the CVT mechanism experimentally and compare it to the performance of parallel, unconnected double auctions in experiments with similar parametrization and either a similar number of subjects or substantially thicker markets. We present evidence that our portfolio trading mechanism facilitates equilibration to the extent that the thicker markets do. Inspection of order submission and trade activity reveals that subjects manage to exploit the direct linkages between markets enabled by the CVT system. 相似文献
999.
1000.
This paper explores the institution of apprenticeship in Ghana. A model is presented where apprenticeship training is idiosyncratic, increasing an individual's productivity in the current firm, but not in any other firm. Still, individuals are willing to fund apprenticeships as they can reap the returns to the specific training of apprenticeship if they manage to acquire the capital required to start their own firms, and replicate the technology and business practice of the apprenticeship firm. Predictions of the model for the productivity and remuneration of different workers are developed and tested using both a linked employer–employee survey of manufacturing firms and a national household survey. 相似文献