Testing Hypotheses of Immigrant Self-Employment
检验了三个假说以解释移民自雇率高于本地工人的现象，发现母国自雇假说和避税假说能解释62%的差异，而飞地假说未获支持。
This paper attempts to explain high rates of immigrant self-employment relative to native workers. Three hypotheses are tested. Estimates of a two-sector model of earnings support the home-country self-employment hypothesis: immigrants from countries with larger self-employed sectors have higher self-employment rates. The data also support the tax-avoidance hypothesis. These two hypotheses explain 62 percent of the immigrant-native self-employment differential. There is little support for the enclave hypothesis. Enclaves do however affect sectoral earnings in ways that are consistent with compensating differentials for enclave life or negative selection into enclaves. (EXCERPT)