Economist - 1800 A.D.
The Laissez-Faire Economists told everybody that competition is the life of trade and that it is a case of survival of the fittest.
So since 1800 looking for markets has engaged men’s activities.
And since trade follows the flag industral nations have also become imperialst nations.
The fight for markets between two industrial nations, England and Germany, was the main cause of the World War.