Laissez-faire, in the capitalist world this is an important doctrine that states that businesses should have the right to as they please with no government intervention. The doctrine promotes capitalism and business overall, in hopes to have a free economy.
Was it Ionia? That might be the answer
Wars have been going their way for a while now, and propaganda and advertisement lifted everybody's spirits. Not only that, but also the advances in military/ warfare technology has improved immensely. These, among many factors, made winning the war possible, and made everyone more enthusiastic.