Ex Post Historical Simulation of a Statistical Model of Anthropogenic Climate Change

From Kaufmann, Kauppi, Mann, and Stock, “Reconciling anthropogenic climate change with observed temperature 1998–2008,” Proceedings of the National Academy of Sciences 108(29), July 2011:

…we update the [original statistical model (7)] by estimating it with data through 1998. The selected sample ends just before the recent period of slowed warming. As such, the parameter estimates do not use information about the post-1998 period. Model simulations reflect these pre-1998 parameters and post-1998 observed levels of radiative forcings, SOI, and volcanic sulphates.

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Fed Policy and Emerging Market Economy Vulnerabilities

The recent weakness in emerging market currencies, and implementation of the taper, are sure to be topics of discussion at the G-20 meetings in Australia. While the imminent retrenchment in quantitative/credit easing is responsible for some of the currency movements of late, I’m not sure this is the only way to look at recent events; nor do I think we need see a replay of previous episodes of currency crises in response to US monetary tightening.

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Economic Implications of Anthropogenic Climate Change and Extreme Weather

In my ten years living in Madison, this has been the coldest Winter thus far. Keeping in mind everything is probabilistic, it’s likely that I have anthropogenic climate change to thank for experiencing this event. [1] [2] [3] (Just like one can’t say Hurricane Sandy was directly a result of global climate change, the likelihood of such events rises with global climate change.)

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The American Recovery and Reinvestment Act at 5

It was five years ago that the ARRA was passed…and thence arose a fierce storm of criticisms, ranging from the idea that the stimulus would occur after the recovery was complete (e.g., Ed Lazear), to the Treasury view (government spending would crowd out completely private spending, e.g., Eugene Fama). Time to take stock. The Council of Economic Advisers has released its last report on the ARRA, and other stimulus measures, discussed in a blogpost by CEA Chair Jason Furman.

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Who anticipated the Great Depression?

Here’s the abstract from a paper by Doug Irwin in the February issue of the Journal of Money, Credit, and Banking:

The intellectual response to the Great Depression is often portrayed as a battle between the ideas of Friedrich Hayek and John Maynard Keynes. Yet both the Austrian and the Keynesian interpretations of the Depression were incomplete. Austrians could explain how a country might get into a depression (bust following a credit-fueled investment boom) but not how to get out of one (liquidation). Keynesians could explain how a country might get out of a depression (government spending on public works) but not how it got into one (animal spirits). By contrast, the monetary approach of Gustav Cassel has been ignored. As early as 1920, Cassel warned that mismanagement of the gold standard could lead to a severe depression. Cassel not only explained how this could occur, but his explanation anticipates the way that scholars today describe how the Great Depression actually occurred. Unlike Keynes or Hayek, Cassel analyzed both how a country could get into a depression (deflation due to tight monetary policies) and how it could get out of one (monetary expansion).