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Tag Archives: Economics

What can economists know?

What can economists know? The early concerns voiced by such critics as Keynes and Hayek, while they may indeed have been exaggerated, were not misplaced. I believe that much of the difficulty economists have encountered over the past fifty years can be traced to the fact that the economic environment we seek to model are sometimes too messy to be fitted into the mold of a well-behaved, complete model of the standard kind. It is not generally the case that some sharp dividing line separates...

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Has macroeconomics — really — progressed?

Has macroeconomics — really — progressed? A typical DSGE model has a key property that from my work seems wrong. A good example is the model in Galí and Gertler (2007). In this model a positive price shock—a ‘‘cost push” shock — is explosive unless the Fed raises the nominal interest rate more than the increase in the inflation rate. In other words, positive price shocks with the nominal interest rate held constant are expansionary (because the real interest rate falls). In my work,...

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Krugman is right — public debt is good!

Krugman is right — public debt is good! The U.S. economy has, on the whole, done pretty well these past 180 years, suggesting that having the government owe the private sector money might not be all that bad a thing. The British government, by the way, has been in debt for more than three centuries, an era spanning the Industrial Revolution, victory over Napoleon, and more. But is the point simply that public debt isn’t as bad as legend has it? Or can government debt actually be a good...

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How evidence is treated in macroeconomics

How evidence is treated in macroeconomics “New Keynesian” macroeconomist Simon Wren-Lewis has a post up on his blog, discussing how evidence is treated in modern macroeconomics (emphasis added): It is hard to get academic macroeconomists trained since the 1980s to address this question, because they have been taught that these models and techniques are fatally flawed because of the Lucas critique and identification problems. But DSGE models as a guide for policy are also fatally flawed...

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The Latvian financial crisis

This is not what you think it is. And it is not what I intended to write about, either. I was going to write about Latvia as it is now, after the deepest recession in the world in 2008-9 and an excruciatingly painful front-loaded fiscal consolidation. Has it really recovered, or is it just marking time?But in looking at Latvia now, I find myself drawn to its history. Latvia's unusual response to the kicking it got in 2008 was because of its history. It had a deep recession 1991-3 and a severe...

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Deflation is Here — And The Government is Poised to Make it Worse

Consumer prices may not be deflating as quickly as Labour’s electoral chances did earlier this month, but — even after £300 billion of quantitative easing — price deflation for the first time in more than half a century is finally here. The Bank of England continues to throw everything at keeping prices rising at close to their 2 percent target. Yet it’s not working. And this is not just about cheaper oil. Core inflation has also been dropping like a rock. I argued that “deflation was...

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Did Osborne Pause Austerity in 2013?

No, says The Times' David Smith. He says that the notion that there was a pause in austerity is an "austerity myth".He points to this chart from the Office for Budget Responsibility that shows fiscal consolidation as a percentage of GDP (relative to the 2008 Budget) continuing on throughout 2013 and 2014 and 2015:But the OBR's chart doesn't actually show what I would define as austerity. It shows the size of the government budget as a percentage of GDP relative to...

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On Trade Unions & Inequality

This chart is pretty wow: Florence Jaumotte and Carolina Osorio Buitron of the International Monetary Fund have some ideas about how the correlation may have been caused: The main channels through which labor market institutions affect income inequality are the following: Wage dispersion: Unionization and minimum wages are usually thought to reduce inequality by helping equalize the distribution of wages, and economic research confirms this. Unemployment: Some economists argue that while...

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How To Euthanize Rentiers (Wonkish)

In my last post, I established that the “rentier’s share” of interest — resulting from as Keynes put it the “power of the capitalist to exploit the scarcity-value of capital” — can be calculated as the real-interest rate on lending to the monetary sovereign, typically known as the real risk free interest rate. That is because it is the rate that is left over after deducting for credit risk and inflation risk. However, I have been convinced that my conclusion — that euthanizing rentiers...

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The Subtle Tyranny of Interest Rates

Interest rates are the price of credit. They are the price of access to capital. Now, it is obvious that pricing credit is not tyrannical in and of itself. Interest compensates a lender for default risk and the risk of inflation eroding the purchasing power of the money that they lend. The tyranny I am getting at is subtle. It is the tyranny that Keynes pointed to when he proposed a euthanasia of the rentier. Keynes proposed that low interest rates would: mean the euthanasia of the rentier,...

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