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Mandelbrot's "range over standard deviation" or R/S statistic, for which the relevant asymptotic sampling theory is derived via … functional central limit theory. This test is applied to daily, weekly, monthly, and annual stock returns indexes over several …
Persistent link: https://www.econbiz.de/10012476064
A long return history is useful in estimating the current equity premium even if the historical distribution has experienced structural breaks. The long series helps not only if the timing of breaks is uncertain but also if one believes that large shifts in the premium are unlikely or that the...
Persistent link: https://www.econbiz.de/10012470972
This paper presents an empirical analysis of changes in individual earnings and hours over time. Using longitudinal data from three panel surveys,we catalogue the main features of the covariance structure of changes in earnings and hours. We then present an interpretation of these features in...
Persistent link: https://www.econbiz.de/10012477244
This paper studies the effect of employee job selection in a model of statistical discrimination in a competitive labor market. In an economy in which there are quality differences between groups, a surprisingly strong condition is required to guarantee discrimination against the worse qualified...
Persistent link: https://www.econbiz.de/10012471940
We develop a procedure to rank-order countries and commodities using dis-aggregated American imports data. We find strong evidence that both countries and commodities can be ranked, consistent with the product cycle' hypothesis. Countries habitually begin to export goods to the United States...
Persistent link: https://www.econbiz.de/10012472846
This paper suggests that the relevant question concerning unit root' in the U.S. real GNP time series pertains to the relative importance of difference-stationary and trend-stationary components. Various analytical approaches indicate than an accurate answer is not obtainable with existing data....
Persistent link: https://www.econbiz.de/10012474588
This paper presents and implements statistical tests of stock market forecastability and volatility that are immune from the severe statistical problems of earlier tests. Although the null hypothesis of strict market efficiency is rejected, the evidence against the hypothesis is not...
Persistent link: https://www.econbiz.de/10012475889
This paper develops, calibrates, and simulates a dynamic 88-period OLG model to study the intergenerational transmission of U.S. wealth inequality via bequests. The model features marriage, realistic fertility patterns, random death, assortative mating based on skills, heterogeneous skill...
Persistent link: https://www.econbiz.de/10012471605
In this paper we study the transition from a pay-as-you-go system of Social Security pensions to an investment-based system in an economy in which portfolio returns and capital profitability are both uncertain. The paper extends earlier studies by Feldstein and Samwick that modeled the...
Persistent link: https://www.econbiz.de/10012471784
In the United States, local government expenditures are heavily subsidized through a variety of sources. This paper explores theoretically and then simulates empirically the effects of eliminating either of two federal subsidies encouraging local government expenditures: (1) income tax...
Persistent link: https://www.econbiz.de/10012478023