Problem
"Roger Waldinger makes a number of astute observations about how racial and ethnic groups get sorted into certain occupations. How and in what ways does the historical timing of a group's entry (for example, Irish, Jews, Italians, and Afro-Caribbeans) into the United States affect its economic and social mobility? How does one group come to monopolize one trade or occupation? How are race, ethnicity, upward mobility, and control of local politics linked to upward mobility?"