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This paper considers the implementation of a nonstationary, heterogeneous Markov model for the analysis of a binary dependent variable in a time series of independent cross sections. The model, previously considered by M offitt (1993), offers the opportunity to estimate entry and exit transition probabilities and to examine the effects of time-constant and time-varying covariates on the hazards. We show how ML estimates of the parameters can be obtained by Fisher's method-of-scoring and how to estimate both fixed and time-varying covariate effects. The model is exemplified with an analysis of the labor force participation decision of Dutch women using data from the Socio-economic Panel (SEP) study conducted in the Netherlands between 1986 and 1995. We treat the panel data as independent cross sections and compare the employment status sequences predicted by the model with the observed sequences in the panel. Some open problems concerning the application of the model are also discussed. 相似文献
53.
We provide an axiomatization of expected equally-distributed equivalent-utility social welfare functions in the context of Harsanyi?s impartial observer theorem. For this family of social welfare functions, we show what additional axiom is necessary and sufficient for the observer to exhibit aversion to ex post inequality. We also relate this axiomatization to our axiomatization in a companion paper of generalized utilitarian social welfare functions. Given certain richness assumptions, the only social welfare functions that belong to both families are the utilitarian. 相似文献
54.
Recent studies of purchasing power parity (PPP) use panel tests that fail to take into account heterogeneity in the speed of mean reversion across real exchange rates. In contrast to several other severe restrictions of panel models and tests of PPP, the assumption of homogeneous mean reversion is still widely used and its consequences are virtually unexplored. This paper analyzes the properties of homogeneous and heterogeneous panel unit root testing methodologies. Using Monte Carlo simulation, we uncover important adverse properties of the panel approach that relies on homogeneous estimation and testing. More specifically, power functions are low and assume irregular shapes. Furthermore, homogeneous estimates of the mean reversion parameters exhibit potentially large biases. These properties can lead to misleading inferences on the validity of PPP. Our findings highlight the importance of allowing for heterogeneous estimation when testing for a unit root in panels of real exchange rates. 相似文献
55.
Haim Ben Shahar 《The Journal of Finance》1970,25(3):678-681
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Offshore outsourcing of business functions is widely practiced by firms in advanced economies. Although scholars have argued for various theoretical perspectives in explaining its nature and implications, a coherent explanation of how crucial factors that aid this growing phenomenon coevolve has not been offered. Further, a potential gap in the extant literature concerns inadequate simultaneous attention to clients and providers – the key actors in offshore outsourcing. With an aim to fulfill these research gaps, we provide in this paper an integrated framework wherein we delineate various institutional and organizational factors that coevolve to enable engagement of clients and providers in offshore outsourcing. Our conceptualization draws from information obtained by interviewing 46 executives of 31 firms of the Indian business process outsourcing industry. 相似文献
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Samy Ben Naceur 《International Review of Financial Analysis》2007,16(4):332-353
The paper analyzes 95 newly privatized firms (NPFs) in four Middle Eastern and North African countries (Egypt, Morocco, Tunisia, and Turkey). We find that these firms experienced significant increases in profitability and operating efficiency, and significant declines in employment and leverage. We also document strong performance improvements for firms that did remain state-owned, that were not sold to foreigners, and that came from Egypt. Job losses are higher in Egypt and in firms where the state is no longer in control. Also, the results indicate that revenue firms and NPFs in Morocco display significantly less leverage than control firms and those from other countries. We find that profitability changes are negatively related to state control and positively related to foreign ownership. Trade openness, change in real GDP over the privatization window, index of investor protection, and foreign ownership are important determinants of the changes in sales efficiency and output. These findings suggest that NPFs become more productive in environments where property rights are better protected and enforced and that foreign investors influence firms' productivity through their monitoring role. 相似文献
60.
Historians and economists often refer to the United States experience under the Articles of Confederation as evidence against decentralised government finance. While it is true that the US government had difficulty raising money from the states during this period, we argue that these facts are a benefit of the system, not a flaw. A 'bottom-up' system of finance, such as the one that existed under the Articles of Confederation, is an important check on Leviathan and has implications for United Nations fund-raising efforts and development economics. 相似文献