Robert Romero argues that Chinese immigrants turned to Mexico as a new land of economic opportunity after the passage of the U.S. Chinese Exclusion Act of 1882. As a consequence of this legislation, Romero claims, Chinese immigrants journeyed to Mexico in order to gain illicit entry into the United States and in search of employment opportunities within Mexico's developing economy. Romero details the development, after 1882, of the "Chinese transnational commercial orbit," a network encompassing China, Latin America, Canada, and the Caribbean, shaped and traveled by entrepreneurial Chinese pursuing commercial opportunities in human smuggling, labor contracting, wholesale merchandising, and small-scale trade.

Romero's study is based on a wide array of Mexican and U.S. archival sources. It draws from such quantitative and qualitative sources as oral histories, census records, consular reports, INS interviews, and legal documents. Two sources, used for the first time in this kind of study, provide a comprehensive sociological and historical window into the lives of Chinese immigrants in Mexico during these years: the Chinese Exclusion Act case files of the U.S. Immigration and Naturalization Service and the 1930 Mexican municipal census manuscripts. From these documents, Romero crafts a vividly personal and compelling story of individual lives caught in an extensive network of early transnationalism.