Robert Solow

"The test of economic policy is not whether it sounds good, but whether it works."

"Progress is possible, but it is never automatic."

"The future of prosperity depends on our commitment to education and innovation."

"Economics is a tool for understanding the world, not an ideology to impose on it."

"The residual, as I have calculated it, must conceal large improvements in the quality of inputs that I am unable to measure."

"We are not very good at explaining why total output grows faster than we can account for with measured inputs."

"Growth economics requires us to think carefully about what we can and cannot measure."

"The most important thing in economic growth is not what we can see, but what we cannot."

"Productivity improvement is the deepest source of long-term economic success."

"Technical change and learning are at the heart of economic development."

"Without sustained technological progress, economies stagnate no matter what else they do."

"The rate of technical progress determines whether we thrive or merely survive."

"Capital accumulation alone cannot explain prosperity; something more mysterious is at work."

"Economic growth is ultimately about ideas, not just machines and labor."

"We must be humble about the limits of what we understand about economic growth."

"The neoclassical model leaves a large residual, and that residual is fascinating."

"Growth accounting reveals how little we can explain with conventional factors."

"Understanding what lies in the residual is perhaps the most important task in economics."

"Technical progress is not a luxury; it is a necessity for economic survival."

"The productivity slowdown was one of the great puzzles of modern economics."

"Measuring improvements in technology is harder than it appears."

"Economic growth depends on our ability to innovate and adapt."

"The difference between fast-growing and slow-growing economies often lies in intangible factors."

"We see computers everywhere except in the productivity statistics—until we don't."

"Long-term growth requires sustained investment in research and education."

"Capital is important, but human ingenuity is what truly matters."

"Economic models are useful fictions, not reality itself."

"The history of growth is largely the history of technological change."

"We should be skeptical of simple explanations for complex economic phenomena."

"Growth is not automatic; it requires the right institutions and incentives."