More nonconcavities in information processing functions

The productivity of (human) information processing as an economic activity is a question that is raising some interest. Using Marschak's evaluation framework, Radner and Stiglitz have shown that, under certain conditions, the production function of this activity has increasing marginal returns in its initial stage. This paper shows that, under slightly different conditions, this information processing function has repeated convexities with ongoing processing activity. Even for smooth changes in the signals' likelihoods, the function is only piecewise smooth with non-differentiable convexities at points of conditional changes of action. For linear likelihood functions the processing value proves to be piecewise linear with convexities at these levels. This revised version was published online in June 2006 with corrections to the Cover Date.     

The impact of immigration on the internal migration of natives and immigrants

In this paper we examine the internal migratory response, by native-born non-Hispanic white men and foreign-born men in the United States, to recent immigration. Our analysis does not support the claim that natives have made a migratory response to recent immigration. Native-born men and foreign-born men were less likely to leave states that received large numbers of immigrants in the 1980s than they were to leave other states, and native-born men had less propensity toward out-migration than did foreign-born men. Out-migration was most likely to be deterred if recent immigrants originated in Europe or Asia. Although native-born non-Hispanic white men showed a tendency toward out-migration if recent immigrants originated in Latin America or the Caribbean, this result was insignificant after we controlled for state economic and regional context.     

A common-features analysis of Amsterdam and London financial markets during the eighteenth century

We examine the financial linkage between the London and Amsterdam financial markets using stock prices recorded in each market over the period 1723-94 in conjunction with tests for common trends, cycles, and regime shifts. These tests reveal a surprising degree of integration between the markets as their prices move together in both the short and long run. Moreover, shocks to the assets translate quickly and accurately between markets. It also appears that Dutch investment did not destabilize London markets and stock prices in London were the primary determinant of prices in Amsterdam.     

Household transitions in the migrations of Dominicans and Colombians to New York

"Using life history survey data, we examined the correlates of change in the composition of Dominican and Colombian immigrant co-residential households [in New York City] at three points in time--prior to migration, just after migration and at the time of the survey. We found that there is considerable heterogeneity in the patterns of household transitions, although the majority of both Dominican and Colombian households at the time of the survey were nuclear family households. Dominican women tended to have made transitions into single-parent households by the time of the survey. Background and migration characteristics influence the pattern of household transitions, but fail to explain the ethnic and gender differences."     

Will They Stay? Foreign-Born Out-Migration from New U.S. Destinations

Immigrants living in new destinations in 1995 were 2.5 times more likely to have migrated to another labor market by 2000 as immigrants living in traditional places. The researchers look at two competing explanations for immigrants’ differential internal migration patterns, namely that immigrants prefer areas with relatively large nativity concentrations which provide them with social support versus immigrants are target earners who prefer robust labor markets with strong employment growth and high wages. Utilizing confidential Census data for 1990 and 2000, the authors develop new destination classifications for 741 labor markets that take into account the differential growth and composition characteristics of 24 Asian, Latin American and Caribbean immigrant groups living in those markets. The empirical analysis of labor market out-migration indicates that immigrants do not see internal migration as an either/or choice between economics and social support but prefer residence places that allow them to maximize both conditions.     

Broadening the enclave debate: The labor market experiences of Dominican and Colombian men in New York city

This article provides new data on immigrant employment in ethnic firms, in an attempt to go beyond the terms of the ethnic enclave debate as it has developed so far. We contend that enclave research has focused too narrowly on wages. Using data from a survey of Colombian and Dominican immigrants in New York City, we compare enclave, primary, and secondary workers on three types of work-related resources: wages, opportunities for skill acquisition, and access to nonmonetary fringe benefits. We find little evidence that Dominican and Colombia men in the enclave comprise a protected labor market sector. On the contrary, they are disadvantaged with respect to several fringe benefits.An earlier version was presented at the 1990 American Sociological Association meetings.     

Family formation and marital selectivity among Colombian and Dominican immigrants in New York City

"Utilizing data from a 1981 survey of Dominican and Colombian immigrants to New York City, and from 1975 marriage certificates for the entire city, this article describes the extent of family formation in the U.S. and patterns of marital selectivity of recent Hispanic immigrants residing in New York City. A core goal of the analysis is the provision of indicators of the extent of and nature of integration processes at an early stage of the immigration." It is found first that "Hispanic immigrants in New York City are clearly long-term settlers, although not necessarily permanent ones. They are forming nuclear families in this country to a considerably greater extent than they are either transferring families from the origin country or residing as unattached temporary migrants. Second, a significant minority of marriages contracted in this country are with spouses of different national origin groups, indicating an openness in ethnic boundaries in the host society context."     

Social context,household composition and employment among migrant and nonmigrant Dominican women

It is argued in this article that the social context of ethnic groups may shape employment patterns by immigrant women. This study examines the effects of household composition on the employment patterns among Dominican Republic migrants in New York City and among Dominicans in the Dominican Republic. This study is based on studies by Tienda and Glass and expands household composition groups. The comparison between countries serves as a control for the effects of culture. The inclusion in the US sample of Colombian migrants serves to further reinforce the effects of social context over cultural influences. Data are obtained from the 1981 survey of 528 Colombian and Dominican migrant women aged 20-45 years living in New York City's Queens borough and 50% of Manhattan borough and a 1978 survey of women living in Santo Domingo and Santiago. Women who lived in the Dominican Republic were better educated and more likely to be employed. Over 50% of migrant women in New York received public assistance, and 88% of women receiving public assistance were female heads of households. In the Dominican Republic, the social context did not include the opportunity for receipt of public assistance. 61% of women living in the Dominican Republic and only 50% of migrant women were currently married. Female headship was 36.8% in the US and 11.8% abroad. Twice as many households abroad included other adult family members. These findings illustrate the importance of social context and household composition in explaining female immigrant employment. Dominican women living in New York with children and without a spouse were less likely to be employed than women with spouses or women without spouses or children. In the Dominican Republic, women with spouses or adult men in the household were less likely to work. Selective migration was ruled out as an explanatory factor.     

U.S. Immigrants in Dispersed and Traditional Settlements: National Origin Heterogeneity

This paper uses confidential ACS data to compare the characteristics of immigrants from ten Asian and Latino origins and the total foreign born in traditional, emerging, and dispersed areas. The correlates of dispersed settlement were estimated for each group and the total foreign born using multinomial logistic regression. The findings show that the characteristics of immigrants in dispersed settlements differ both within and across national origin groups and also between national groups and the total foreign born. Several relationships, particularly those for education and occupation measures, differ significantly and call into question the homogeneity assumption commonly made by studies of the total foreign born or pan‐ethnic groups.