摘要:This analysis empirically evaluates the effectiveness of entrepreneurial policies using the number and distribution of firms as outcome variables. The analysis occurs within the context of a natural experiment: the START-UP NY program. Implemented in 2014, START-UP NY created enterprise development zones adjacent to publicly supported universities (i.e., SUNY and CUNY campuses) within the state. New business start-ups operating within these zones, and within a specific set of technology and health-related industries received tax incentives that substantially lowered tax rates for a 5-10 year period. In 2016, the State of New York substantially altered its corporate tax structure; a policy initiative affecting firms, business owners, and households in the state simultaneously, and may also induce entrepreneurship. The results suggest that START-UP NY had a positive effect on the growth of New York's micro and small-sized firms operating in professional, scientific, and technical industries. START-UP NY also negatively affected micro-sized manufacturing firms, while positively affecting small manufacturing firms. The latter finding suggests that START-UP NY is effective in incubating micro-sized manufacturing firms that eventually grow into small manufacturing firms.