Robert Solow, Professor Emeritus at Massachusetts Institute of Technology and Nobel Laureate, talks with EconTalk host Russ Roberts about his hugely influential theory of growth and inspiration to create a model that better reflected the stable long-term growth of an economy. Solow contends that capital accumulation cannot explain a significant portion of the economic growth we see. He makes a critical distinction between innovation and technology, and then discusses his views on Milton Friedman and John M. Keynes.