Are There Too Many Entrepreneurs? A Model of Client-Based Entrepreneurship
According to the authors, client relationships create value, which employees may try to wrest from their employers by setting up their own firms. Firms counter by inducing workers to sign contracts that prohibit them from competing or soliciting former clients in the event of termination of employment. With or without liquidity constraints, more entrepreneurial locations will attract more clients
and have higher employment and output.
Link
http://weber.ucsd.edu/~jwatson/PAPERS/RauchWatsonEnt.pdf