World War I dampened the growth in yachting, but the 1920s once again brought a heyday of activity and advancement. The production manufacturing capacity and technology created during the war years catapulted the developments in yachting. However the crash of the international economy at the close of the decade as quickly dampened the demand for large exotic yachts. In order to survive designers and producers had to diversify their efforts and offerings. Once again small commercial craft became the test-beds for technology and the bread-and-butter for the builders in the 1930s. One of the great design teams from this period, Sparkman & Stephens is still influential today.