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How AI is taking over the global economy in one chart

For decades, corporate America has spurned big-lab research-and-development spending, the type that delivered the dizzying and broad tech and economic progress of the last century. But a belief that artificial intelligence is going to drive the next big economic wave has led today's largest companies — like Google, IBM and Microsoft — to revert to the old, ambitious R&D model. And their Chinese competitors — Baidu and Alibaba — aren't far behind.

These five companies — plus Amazon, Facebook and Google — combined are investing more in research and development than many entire economies. In 2015, for instance, the entire U.K. economy — companies and the government — invested $53.8 billion in R&D, less than the $58.2 billion posted by the big eight. Take a look at the chart below.

Data: OECD, Company disclosures; Chart: Andrew Witherspoon / Axios