Optimal Facility Location in a One-Dimensional Spatial Market

This paper analyzes properties of the optimal spatial arrangement of what may be interpreted as a class of public facilities. Optimality is defined as cost minimization. Three different optimality criteria are considered, and for each, the necessary and, sufficient conditions, market area size, and production levels, are derived. The relationship between optimal production levels and number of facilities needed is also considered. Next the results of implementing various pricing strategies are analyzed with emphasis given to marginal and uniform pricing. It is shown that, given certain conditions, all facilities incur operating deficits, given marginal pricing. Estimates on the level of the deficits are derived in terms of location rents. Finally, in the appendix, several important results from other studies are derived as special cases of the basic model.     

Population density and development potential in rural Zimbabwe: an assessment based on the 1969 and 1982 censuses

"Based on 1969 and 1982 census data, this paper examines the spatial association between high rural population density and development potential in Zimbabwe and its significance for national development policy. A 1982 grid cell density map was compiled on the same geographical frame as an existing 1969 density map, yielding an intercensal density change map. A land classification map and a composite map of development constraints were rasterized on the same spatial framework and subjected to computer analysis. Areas of critically high (and generally increasing) densities showed strong spatial associations with areas of severe development constraints...."     

Violent Inaction: The Necropolitical Experience of Refugees in Europe

A significant outcome of the global crisis for refugees has been the abandonment of forced migrants to live in makeshift camps inside the EU. This paper details how state authorities have prevented refugees from surviving with formal provision, leading directly to thousands having to live in hazardous spaces such as the informal camp in Calais, the site of this study. We then explore the violent consequences of this abandonment. By bringing together thus far poorly integrated literatures on bio/necropolitics (Michel Foucault; Achille Mbembe) and structural violence (Johan Galtung), we retheorize the connections between deliberate political indifference towards refugees and the physiological violence they suffer. In framing the management of refugees as a series of violent inactions, we demonstrate how the biopolitics of migrant control has given way to necropolitical brutality. Advancing geographies of violence and migration, the paper argues that political inaction, as well as action, can be used as a means of control.     

Changing Jobs and Changing Houses: Mobility Outcomes of Employment Transitions

The life-course approach to residential mobility and migration recognizes a central role for a variety of demographic and economic triggers in the mobility process. Having a child, getting married, separated, or divorced, have all been identified as triggers that generate residential relocations. It is obvious that a job change can also be viewed as a stimulus for residential relocation, although until now the interconnection has been evaluated mainly for long-distance migratory moves rather than for its effects on residential mobility. In this analysis we use the Panel Study of Income Dynamics to test the association between employment changes and residential relocation. We examine both the occurrence and the timing of residential moves triggered by employment transitions. We show that job changes increase the likelihood of residential relocation in the aggregate and for singles when we hold other & "triggers" constant. The results of the analysis of the timing of job changes and residential relocations indicate that temporal differences exist between households types. Overall, the results establish that job change is an important triggering process in residential relocation and emphasizes the interconnected nature of life-course events.     

A Conditional Logit Approach to U.S. State-to-State Migration

This paper uses a conditional logit approach to study interstate migration in the United States for each of eleven years, from 1986–1987 to 1996–1997. We test substantive hypotheses regarding migration in the United States and demonstrate the richness of the conditional logit approach in studies of place-to-place migration. We investigate migration responses to relative economic opportunities (unemployment rate, per capita income) and the associated costs of moving (distance between origin and destination and its square). We also investigate how noneconomic factors, such as amenities, affect migration between states through a state fixed effect. Finally, we study the magnitude of unmeasured costs associated with a particular migration. The conditional logit model also allows us to compute various trade-off and other values that are of interest in migration analysis.     

Book reviews

THE UNITED STATES IN WORLD AFFAIRS 1949. By Richard P. Stebbins and the Research Staff of the Council of Foreign Relations. New York, Harper and Brothers, 1950.

CONDITIONS OF ECONOMIC PROGRESS. By Colin Clark. 2nd Edition. London, Macmillan, 1951. xvi ‐J‐ 584 pp. 50/‐ stg.

INDIAN‐AMERICAN RELATIONS. Proceedings of the India‐America Conference held in New Delhi in December 1949. Issued under the joint auspices of the Indian Council of World Affairs and the American Institute of Pacific Relations. Oxford University Press. v + 79 pp.

THE STATE OF ASIA: A Contemporary Survey. By Lawrence K. Rosinger and Associates. Issued under the auspices of the American Institute of Pacific Relations. Alfred A. Knopf, 1951. 512 pp. Bibliography and index.

UNITED KINGDOM ADMINISTRATION AND INTERNATIONAL ORGANISATIONS: A Report by a Study Group of the Institute of Public Administration. R.I.I.A., 1951. 55 pp. 4/‐.