Ethnic Transformation in Rural California: Looking Beyond the Immigrant Farmworker

Abstract Communities in rural California are becoming increasingly Latino. Using a quantitative database of 288 rural communities, together with qualitative data collected in the San Joaquin Valley, we examine the processes through which this ethnic transformation is occurring. Most studies have focused on Latino immigration as the cause of changing ethnic composition. We find that non-Latino population growth, as well as Latino population growth, accounts for the relative differences in changing community ethnicity. Most important for explaining migration among Latinos are housing costs and year-round job availability. Among white non-Latinos, ethnic conflict and perceptions of community deterioration better explain migration decisions. As a result of these changes, places in rural California are becoming increasingly economically and ethnically differentiated.     

Optimal mixed-model sequencing for balanced assembly lines

This paper describes an algorithm for solving optimally, the mixed-model sequencing problem when assembly line stations are balanced for each model. An optimal sequence is obtained with the minimization of the overall assembly line length for zero station idle time.The algorithm incorporates two basic steps. The first involves a search procedure that generates all cycle sequences; i.e. sequences having identical ‘start’ and ‘finish’ positions and whose work content can be executed within a defined station length. The second step uses integer programming (IP) to determine the number and combination of the various cycle sequences, such that the production demand is satisfied.     

Earnings mobility of first and "1.5" generation Mexican-origin women and men: a comparison with U.S.-born Mexican-Americans and non-Hispanic whites

"This study addresses the following questions: Are Mexican immigrants closing the earnings gap with greater time in the United States, compared to U.S.-born Mexican Americans and non-Hispanic whites? What factors are most important in determining their earnings? How are earnings determinants different for women versus men, and those who came to the United States as children, versus those who came as adults and those born in the United States?... With greater time in the United States, male immigrants achieve average earnings comparable to U.S.-born Mexican Americans, but not to non-Hispanic whites, controlling for human capital variables. With greater time in the United States, female immigrants approach the number of hours of paid work of U.S.-born women, but not the earnings received per hour. Gains in earnings associated with age, time in the United States, and English proficiency differ by gender, reflecting structural differences in the labor market."