Mr ries adds that this all makes american entrepreneurs more willing to take risks .
里斯先生补充说，这一切使得美国企业家更愿意进行冒险。
Mr ries says that when it comes to supporting entrepreneurship , the us has some key advantages over europe and other parts of the world .
里斯先生说，就支持创业而言，美国比欧洲和世界其它地区有一些关键的优势。
That system , of which ries is a leading proponent , is called the " lean startup , " an approach to creating companies that has attracted much attention in recent years from entrepreneurs , technologists and investors .
