To what extent does the success of an entrepreneurial venture in the United States depend upon an immigrant entrepreneur's individual traits such as motivation, need for achievement, perception of exogenous business factors, and relationship networking? The findings from the study present significant differences in motivation and need for achievement between entrepreneurs and non-entrepreneurs. Relationship networking is valued as an asset across seasoned entrepreneurs and non-entrepreneurial groups. Several exogenous factors exist, influence, and impact entrepreneurial decision-making. However, entrepreneurs and non-entrepreneurs perceived and rated exogenous factors similarly. Future research could build upon findings from this study to present a specific set of suggestions on improving exogenous factors. Attracting highly motivated entrepreneurs and immigrants with the right public policies could positively impact the economy of the United States. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]