speculative enterprise

It consists largely of assigning parts in some great world-experience to particular actors—a highly speculative enterprise.

A speculative enterprise for importing cattle from Lower California proved "more picturesque than profitable."

And I learned that in Caskia there is no such thing as speculative enterprise.

Credit became greatly restricted, and all descriptions of speculative enterprise came to an end.

There are no frosts to render agriculture a mere speculative enterprise; no bonds of ice to close the ports to commerce.