Paul Samuelson

"The readers of this space know Paul Samuelson as a witty, informed and often acerbic commentator on current affairs, as a “liberal” supporter of the economic policies of the Kennedy and Johnson years, and as a critic of current Nixon economic policy. Millions of college graduates know Paul Samuelson for his economics textbook, which has been the leading elementary text in the United States for two decades, has sold nearly 3 million copies, and is almost surely the best-selling book on economics ever published in the Western world. Professional economists know Paul Samuelson as a mathematical economist who has ranged widely and deeply, who has helped to reshape and improve the theoretical foundations of our subject. This is the work for which this remarkably versatile man won the Nobel Prize. In the words of the announcement, the prize was awarded “for the scientific work through which he has developed static and dynamic economic theory and actively contributed to raising the level of analysis in economic science.”"

"Reference to the textbook and its writer was often made with a lofty sense of intellectual and literacy superiority; that has not been true in modern times in economics. The dominant influence, now fully respected, is that of Paul Samuelson. He is celebrated for his research, for his public advocacy, his stand for socially acceptable economic policy. He has not been sufficiently celebrated for this really phenomenal achievement: the basic economic education of successive generations. There are few Americans of any public distinction who do not owe some of their knowledge and position to Samuelson, and his influence is by no means confined to the United States. In ultimate teaching effect in economics, he has no rival"

"Another big influence was Samuelson's Foundations, which I read when I stated here at Chicago. It's a "how-to-do-it" book. a great book for first-year graduate students. It says, "Here's the way you do it." It lets you in on the secret of how you play the game, as opposed to cutting you off with big words. I think the combination of Samuelson's book plays Friedman's class was what got me going."

"The only way I feel I understand something is if I can write it down in a model and make it work. I felt that from the beginning. That's why I liked Samuelson's book. He'll take these incomprehensible verbal debates that go on and on and never end and just end them; formulate the issue in such a way that the question is answerable, and then get the answer."

"Samuelson says I was wrong and he was right, and he froths at the mouth when people talk about the lighthouse example. He says Coase is wrong; he doesn't overcome the free rider problem. Who are the free riders? The foreign ships going past the British coast which do not call at a British port. Using Samuelson's approach, what do you do? Do you ask the foreign governments to give you a subsidy? Do you tax people in Britain because the foreign ships are getting help without paying for it? What do you do? My approach is to compare the alternatives. People like Samuelson like to set up a perfect world and say that the market does not bring us to this point and imply that the government should do something. They stop their analysis at that point."

"Between meals I arranged a light, informal trivia competition. Had answers been counted, he would have won hands down. He even knew the third president—of Finland—a question I threw in as a joke."

"Generally speaking, Samuelson's contribution has been that, more than any other contemporary economist, he has contributed to raising the general analytical and methodological level in economic science. He has in fact simply rewritten considerable parts of economic theory. He has also shown the fundamental unity of both the problems and analytical techniques in economics, partly by a systematic application of the methodology of maximization for a broad set of problems. This means that Samuelson's contributions range over a large number of different fields."

"Of course, one can go back to high school or, in my case, junior college and find roots; there are some indeed, but my professional beginnings were in the Berkeley that existed just before World War II and the scholarship I won to MIT. There I met the dazzling wunderkind Paul Samuelson. When I was browsing in the Berkeley library and came across early issues of Econometrica, Samuelson’s contributions caught my eye. When I got an opportunity to go to MIT, it was the possibility of working with Samuelson that confirmed all my choices. I was attached to him as a graduate assistant from the outset, and I tried to maximize my contact with him, picking up insights that he scattered on every encounter. Working with Samuelson, who was at the forefront of interpreting Keynesian theory for teaching and policy application, I was put immediately in the midst of two challenging contests—one to gain acceptance for a way of thinking about macroeconomics and another to gain acceptance for a methodology in economics, namely, the mathematical method. Later, both challenges were to be overcome, but for ten or twenty years opposition was fierce. Once Samuelson’s Economics became a widely used text in first courses in the subject, Keynesian economics was firmly embedded. There was no turning back from that achievement. The successive student generations turned more toward the mathematical approach in graduate school, and they taught or did research in this vein. That eventually established the mathematical method, first in the United States, then in Europe, Japan, India, and other centers. Much of the foundation was built in Europe, and many of the American masters at mathematical economics were immigrants, but Samuelson, Friedman, and others gave it a native-born American flavor, and the approach truly caught on in this country."

"He knows history. If he had a Hungarian sitting at his side at the dinner table, he would quote easily names of politicians or novelists of the Austrian–Hungarian empire of the late 19th century. He also understands the significance of the history of a country. This is a rare quality at a time when the education of economists has become excessively technical."

"[Paul] mentioned that he had heard about a piece I had written on Irving Fisher. I have no idea how he heard about it, but I offered to send him a copy and within a few days I got back a letter. [Paul] read the paper and wanted to set down his own interpretation, but then he closes the letter with a remarkable line that I treasure: ‘Do disregard my heresies and follow your own star.’"

"In the world of music, it is a rarity to find a person who is both a gifted composer and a top conductor. So it is in economics as well. Paul is that rarity. When Paul is writing, the sun is always out. His writing—ever eloquent, ever stirring—is done with the kind of verve that one seldom finds today."

"In contrast to the natural sciences, where Isaac Newton and Albert Einstein made their major contributions, most economics masterpieces were written when the authors were middle aged. Adam Smith, Karl Marx, John Maynard Keynes, and Milton Friedman come to mind. However, Paul started much earlier, in his 20s; and, even now, his new articles influence the fields of economics and finance."

"Samuelson is an artist; he brought undergraduates pretty well up to the level of the state of knowledge in the profession."

"There have been hedgehogs; there have been foxes; and then there was Paul Samuelson. (...) I’m referring, of course, to Isaiah Berlin’s famous distinction among thinkers – foxes who know many things, and hedgehogs who know one big thing. What distinguished Paul Samuelson as an economic thinker, making him like nobody else, past or present, was the fact that he knew – and taught us – many big things. No economist has ever had so many seminal ideas."

"One recent history of economic thought (Jürg Niehans’s A History of Economic Theory) devotes twenty-four pages to Samuelson’s ideas. Adam Smith only gets thirteen. Samuelson’s work on stock markets and the random walk takes up less than two of those twenty-four pages. He was “the last generalist in economics,” as he liked to say, and for him financial market studies were just a side project that he at times seemed deeply ambivalent about. His intervention was, however, crucial to the triumph of the random walk. Here was one of the most important economists of all time, and he didn’t think the relationship between coin flips and the stock market was a dinner-speech triviality."

"A few years ago, I had the good fortune of running across a first edition of Paul's textbook (not the recent reprint of the original text, but an actual 1948 edition). It was a real find. I bought the volume in an online auction for, if my recollection is correct, $35. Talk about consumer surplus! I would have gladly paid many times that. At the next Boston Fed meeting, I took the book along to get Paul to sign it. Below is the book's title page, along with Paul's gracious inscription."

"John Maynard Keynes may have had more influence on policy makers, Milton Friedman on citizens, Kenneth Arrow on economic theory, but Samuelson had more influence on the way economics is done today, and the purposes to which it is put, than any other economist of the twentieth century."

"He was influential. He influenced students through his textbook, and he influenced the entire economics profession through his dissertation, published as "Foundations of Economic Analysis." Readers of this blog will tend to disapprove of his influence, in that it promoted Keynes and the use of mathematical modeling. Perhaps Milton Friedman was more influential on policy. But Samuelson was more influential on the internal dynamics of the economics profession. On that score, I would say that he was without peer in this century. […] Compared with later generations of economists, he was more nuanced in his thinking and not as capable a mathematician."

"Many principles of economics were hidden in obscure verbiage of previous generations; he reformulated and extended them with crystal clarity in the language of mathematics."