Issues over national security threats and competition with China for future technology leadership are stopping the flow of China investment in US tech companies. Cross-border U.S.-China collaboration that has long fueled next-generation innovations is being stifled.

First of China’s podcasting-type players goes public on Nasdaq and raises $45 million, with investors Morningside, Xiaomi, Orchid Asia, TPG and Matrix in tow.

The U.S. is sliding as the uncontested global leader in R&D. Its share of total R&D spending globally slipped from 37% to 25% since 2010, the National Science Board finds. China gained to 23%.

NEW DATA: 2 Superpowers? It’s a study in contrasts. China venture capital nearly fell off the charts in 2019. But not the same for the US, where venture figures remained fairly stable. Here’s a first look at the numbers, China and US side by side. Clearly, the tech cold war and Chinese economic slowdown is having...