Every entrepreneur has its own entrepreneurial behaviour. Therefore, during its business cycle, they try to actively influence its internal factors to its advantage. The success of these efforts is unclear and depends on the variety of circumstances. The aim of this paper is to present personality typology as a new driver through bibliographical sources. The practical point of this paper is to present a new non-negligible factor that affects all entrepreneurs and can contribute to the understanding of the issue of entrepreneurial behaviour. The contribution of this article is to reopen the discussion on this issue and to build on previous research that will be needed in the future.