https://americanaffairsjournal.org/2021/05/chinas-attempt-to-avoid-the-american-tech-monopoly-trap/
One of the great paradoxes of recent economic history is how little the information technology sector has contributed to overall productivity. Economist Raicho Bojilov examined total factor productivity across the major industrial economies from the 1970s to the present and observed:
Somewhat surprisingly, we do not witness, even with a lag, a major pickup in the productivity growth in other industries that are directly and indirectly connected to the IT industry. One would expect that if the IT industry were the engine of the US economy that generates the products, technologies, and techniques of the future, then the other industries would eventually experience a jump in productivity rates to levels comparable to those of the IT industry. Thus, one may wonder why aggregate productivity in the US has not grown much more in accordance with the innovations and major productivity gains that have been achieved in the IT industry.1
Bojilov adds that “the annual rates of indigenous innovation in the US and the UK have made only a partial recovery during the IT revolution: while higher than the rates for the period 1970–1990, they are still lower relative to the rates witnessed in the postwar years until the late 1960s.”
Why have IT improvements failed to radiate through the broader economy? There are many possible explanations, but the transformation of once-disruptive tech companies into rent-seeking monopolies is surely an important one. The monopolization of information technology arises from the nature of the technology itself: so-called network effects make it convenient to have one venue on which to post political comments and cat pictures, one provider of office software that everyone uses, one giant internet retail marketplace, and so forth. But the fact that technological monopolies have their origin in network effects rather than in the nefarious manipulation of markets does not eliminate the potential for abuse.