I would summarize the Keynesian view in terms of four points: 1. Economies sometimes produce much less than they could, and employ many fewer workers… - Paul Krugman
" "I would summarize the Keynesian view in terms of four points: 1. Economies sometimes produce much less than they could, and employ many fewer workers than they should, because there just isn’t enough spending. Such episodes can happen for a variety of reasons; the question is how to respond.
2. There are normally forces that tend to push the economy back toward full employment. But they work slowly; a hands-off policy toward depressed economies means accepting a long, unnecessary period of pain.
3. It is often possible to drastically shorten this period of pain and greatly reduce the human and financial losses by “printing money”, using the central bank’s power of currency creation to push interest rates down.
4. Sometimes, however, monetary policy loses its effectiveness, especially when rates are close to zero. In that case temporary deficit spending can provide a useful boost. And conversely, fiscal austerity in a depressed economy imposes large economic losses.
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About Paul Krugman
Paul Robin Krugman (born February 28, 1953) is an American New Keynesian economist, Professor of Economics and International Affairs at the Woodrow Wilson School of Public and International Affairs at Princeton University, Centenary Professor at the London School of Economics, and a former op-ed columnist for The New York Times.
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Paul Robin Krugman
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Paul R Krugman
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Additional quotes by Paul Krugman
So what's the moral? We've seen how the insistence on models that meet the standards of rigor in mainstream economics can lead to neglect of clearly valuable ideas. Does this mean that the whole emphasis on models is wrong? Should we make a major effort to open up economics, to relax our standards about what constitutes an acceptable argument? No—the moral of my tale is nowhere near that easy. Economists can often be remarkably obtuse, failing to see things that are right in front of them. But sometimes a bit of obtuseness is not entirely a bad thing.
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The usual and basic Keynesian answer to recessions is a monetary expansion. But Keynes worried that even this might sometimes not be enough, particularly if a recession had been allowed to get out of hand and become a true depression. Once the economy is deeply depressed, households and especially firms may be unwilling to increase spending no matter how much cash they have, they may simply add any monetary expansion to their board. Such a situation, in which monetary policy has become ineffective, has come to be known as a ""; Keynes believed that the British and American economies had entered such a trap by the mid-1930s, and some economists believed that the United States was on the edge of such a trap in 1992.
The Keynesian answer to a liquidity trap is for the government to do what the private sector will not: spend. When monetary expansion is ineffective, fiscal expansion—such as public works programs financed by borrowing—must take its place. Such a fiscal expansion can break the vicious circle of low spending and low incomes, "priming the pump: and getting the economy moving again. But remember that this is not by any means an all-purpose policy recommendation; it is essentially a strategy of desperation, a dangerous drug to be prescribed only when the usual over-the-counter remedy of monetary policy has failed.
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