Can someone translate this sentence?

as a result, US productivity is unlikely to improve unless shareholders and the managers of the companies in which they invest, are encouraged to enhance long-term productivity (and hence long-term profitability), rather than simply to maximize short-term profits.

3x!!

as a result, US productivity is unlikely to improve unless shareholders and the managers of the companies in which they invest, are encouraged to enhance long-term productivity (and hence long-term profitability), rather than simply to maximize short-term profits. 结果就是，美国的生产力不大可能提高，除非那些投资于企业的股东和经理人愿意提升长期的生产力水平进而提高长期的盈利水平，而不是仅仅实现短期利益最大化