Research on the influence of senior executives' incentive portfolio and technological innovation investment on enterprise performance under the background on the belt and road initiative 并列题名：Research on the influence of senior executives' incentive portfolio and technological innovation investment on enterprise performance under the background on the belt and road initiative Research on Chinese OFDI investment direction, efficiency and risk prevention under the background of "the belt and road initiative" Research on internationalization strategy of Chinese real estate enterprises under the background of the Belt and Road initiative