The innovation is hazardous, impossible for most producers. But if someone establishes a business having regard to this source of supply, and everything goes well, then he can produce a unit of product more cheaply, while at first the existing prices substantially continue to exist. He then makes a profit. Again he has contributed nothing but will and action, has done nothing but recombine existing factors. Again he is an entrepreneur, his profit entrepreneurial profit. And again the latter, and also the entrepreneurial function as such, perish in the vortex of the competition which streams after them. The case of the choice of new trade routes belongs here.

The Theory of Economic Development (1934) - Ch. 4 : Entrepreneurial Profit