cost volume profit definition Why did yu 'ebao decline? 3. The role of securities investment A historical experiment. In 1934, the Chrysler corporation of the United States first adopted a streamlined body design. In 1937, German design genius fernand porsche began designing cars resembling the beetle. Not only did the beetle crawl on the ground, but it also flew in the air, and its physical resistance was small. Dr Porsche maximized the merits of the beetle's appearance, making "vw" cars the representative work of streamlined cars at the time. The "golden age" of the beatles was the "golden age" of the car from the 1930s to the late 1940s. With the expansion of the global economy, Mr Trump may hope that tax cuts and deregulation will spur enough growth and create enough jobs that he will boast about. A 2 per cent potential growth rate does not necessarily help his blue-collar base, but it could at least push the stock market to its highest ever level. Although, of course, including republican all mainstream economists agree that, regardless of his policies, potential growth rate will remain at about 2%, still trump will claim that the U.S. economy can grow at 4%. An open market enables enterprises to compete and cooperate with each other on a larger scale and at a higher level to promote economic development.