The debate regarding the economic viability of ethnic enclaves revolves around the enclave-economy hypothesis. The hypothesis as written by Wilson and Portes formulates the idea that "mmigrant workers are not restricted to the secondary labor market." They instead argue that "those inserted into an immigrant enclave can be empirically distinguished from workers in both the primary and secondary labor markets. Enclave workers will share with those in the primary sector a significant economic return past human capital investments" something those who enter the secondary labor market are not able to enjoy.