The present study recognizes that households might change location not only in response to changes in workplace but also in response to changes in housing supply conditions. Furthermore it recognizes that household location decisions might in turn influence the distribution of employment and housing across metropolitan space. The study thus develops a simultaneous-equations model of urban growth and intraurban location that treats housing employment and labor force location within the same framework. (excerpt)

HE objective of this study is to estimate T the magnitudes in which each of several factors influenced interstate migration over the period 1955-1960. Several variables were chosen which might reasonably be expected to explain the movements which occurred, and multiple regression analysis was used on the data. The most unique explanatory variable employed is the stock, i.e., the number of persons born in state i (the origin state) and living in state j (the destination state).' It is shown that the failure to include the migrant stock variable in the estimated relationship causes the true direct effect of most other variables to be obscured.

During the 1970's the South and West census regions accounted for 89.9 percent of incremental U.S. population and 72.5 percent of incremental nonagricultural employment. These figures are sharply higher than corresponding figures for any other decade in U.S. history. For example, during the 1930's the South and West gained 65.4 percent of incremental national population, which was the highest share previously recorded. The immediate cause of the interregional population shifts is fairly heavy net out-migration from the Northeast and North Central regions to the South and West, combined with birth rates that are near historical low levels. Interactive relationships that cause employment growth and migration to reinforce one another are probably operating, but these relationships are not well understood. They are the focus of this paper. Using a new and unique set of time-series data on migration and employment, we develop and estimate a time-series model of migration and employment growth for each of 171 U.S. regions. Our primary emphasis in this paper is on the 57 major metropolitan

A reconsideration of the Pigovian theory of regulating externalities via taxation is undertaken for environments with private information. The presence of private information may have no effect on the social optimum; but when it has an impact, it is to cause a group of different agents to share the same production or consumption levels. The model developed provides an appealing characterization of when such situations transpire: they occur when the individuals who desire most to engage in some activity are the ones who society least wants to participate. Since such instances could potentially be regulated by the imposition of quantity controls, this may explain authorities' apparent predilection for quantity limits rather than tax-cum-subsidy schemes to manage many externalities.

Michael J. Greenwood, John M. McDowell, Differential Economic Opportunity, Transferability of Skills, and Immigration to the United States and Canada, The Review of Economics and Statistics, Vol. 73, No. 4 (Nov., 1991), pp. 612-623

This study was begun while the author was on a Brookings Economic Policy Fellowship in the Office of Economic Research of the Economic Development Administration. Acknowledgements are due Paul L. Burgess, Richardj Cebula, James A. Chalmers, Herbert M. Kaufman, Todd Sandler, WalterJ Wadycki, and the referees for this journal, all of whom have made helpful comments on earlier drafts of the paper and none of whom bears any responsibility for remaining shortcomings.