[1494 companies' total R & D expenses exceeded 700 billion yuan last year, nearly 80% increased over the same period last year] data show that as of the close of trading on April 14, a total of 1657 listed companies in the A-share market have disclosed their results in 2022. Among them, 1494 listed companies disclosed their R & D expenses last year, totaling 709.969 billion yuan, an increase of 18.62% over the same period last year. As for the reasons for the increase in R & D costs, Chen Li, chief economist and director of the Research Institute of Chuancai Securities, said that there are two main reasons for the rise in R & D costs: on the one hand, the policy helps, the national innovation support policy continues to develop, and through strengthening tax incentives, promote the combination of industry and learning, smooth the channels for the transformation of achievements, optimize the financing environment for scientific and technological enterprises, and encourage enterprises to increase investment in scientific research and innovation. On the other hand, the increasing competition in traditional industries can promote the innovation and development of enterprises, establish technical barriers and enhance the profitability of enterprises by increasing investment in R & D. (Securities Daily)