Showing posts with label Forecasting Forum. Show all posts
Wednesday, March 19, 2014
The IMF’s independent evaluation office released its study of IMF Forecasts: Process, Quality, and Country Perspectives. It concludes that “the accuracy of IMF short-term forecasts is comparable to that of private forecasts. Both tend to over predict GDP growth significantly during regional or global recessions, as well as during crises in individual countries.” The study thus confirms the two main findings of my 2001 paper: first, “the record of failure to predict recessions is virtually unblemished,” as I wrote; second, a statistical horse race between private sector and official sector forecasts ends up in a photo finish. My recent work with Hites Ahir looks at the record of professional forecasters in predicting recessions over the period 2008-12, also confirming both findings. The figure shows the close correspondence between Consensus (private sector) and IMF forecasts.
The IMF’s independent evaluation office released its study of IMF Forecasts: Process, Quality, and Country Perspectives. It concludes that “the accuracy of IMF short-term forecasts is comparable to that of private forecasts. Both tend to over predict GDP growth significantly during regional or global recessions, as well as during crises in individual countries.” The study thus confirms the two main findings of my 2001 paper: first, “the record of failure to predict recessions is virtually unblemished,” as I wrote;
Posted by 12:57 PM
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Friday, August 16, 2013
“The next time you are tempted to rely on forecasts of experts in making investment decisions, remember these words attributed to Prakash Loungani of the International Monetary Fund: “The record of failure to predict recessions is virtually unblemished.” Read the full story here.
“The next time you are tempted to rely on forecasts of experts in making investment decisions, remember these words attributed to Prakash Loungani of the International Monetary Fund: “The record of failure to predict recessions is virtually unblemished.” Read the full story here.
Posted by 2:07 PM
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Monday, June 17, 2013
“In November of 2008, as stock markets crashed around the world, the Queen of England visited the London School of Economics to open the New Academic Building. While she was there, she listened in on academic lectures. The Queen, who studiously avoids controversy and almost never lets people know what she’s actually thinking, finally asked a simple question about the financial crisis: “How come nobody could foresee it?” No one could answer her.”
“If you’ve suspected all along that economists are useless at the job of forecasting, you would be right. Dozens of studies show that economists are completely incapable of forecasting recessions. But forget forecasting. What’s worse is that they fail miserably even at understanding where the economy is today. In one of the broadest studies of whether economists can predict recessions and financial crises, Prakash Loungani of the International Monetary Fund wrote very starkly, “The record of failure to predict recessions is virtually unblemished.” He found this to be true not only for official organizations like the IMF, the World Bank, and government agencies but for private forecasters as well. They’re all terrible. Loungani concluded that the “inability to predict recessions is a ubiquitous feature of growth forecasts.” Most economists were not even able to recognize recessions once they had already started.” Read the full article here.
“In November of 2008, as stock markets crashed around the world, the Queen of England visited the London School of Economics to open the New Academic Building. While she was there, she listened in on academic lectures. The Queen, who studiously avoids controversy and almost never lets people know what she’s actually thinking, finally asked a simple question about the financial crisis: “How come nobody could foresee it?”
Posted by 6:43 PM
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Wednesday, May 15, 2013
An Excerpt from Krugman’s review in The New York Review of Books
“Neil Irwin’s The Alchemists gives us a time and a place at which the major advanced countries abruptly pivoted from stimulus to austerity. The time was early February 2010; the place, somewhat bizarrely, was the remote Canadian Arctic settlement of Iqaluit, where the Group of Seven finance ministers held one of their regularly scheduled summits. Sometimes (often) such summits are little more than ceremonial occasions, and there was plenty of ceremony at this one too, including raw seal meat served at the last dinner (the foreign visitors all declined). But this time something substantive happened. “In the isolation of the Canadian wilderness,” Irwin writes, “the leaders of the world economy collectively agreed that their great challenge had shifted. The economy seemed to be healing; it was time for them to turn their attention away from boosting growth. No more stimulus.””
“How decisive was the turn in policy? Figure 1 [see below. Also, read the graph’s corresponding article: The Great Divergence of Policies], which is taken from the IMF’s most recent World Economic Outlook, shows how real government spending behaved in this crisis compared with previous recessions; in the figure, year zero is the year before global recession (2007 in the current slump), and spending is compared with its level in that base year. What you see is that the widespread belief that we are experiencing runaway government spending is false—on the contrary, after a brief surge in 2009, government spending began falling in both Europe and the United States, and is now well below its normal trend. The turn to austerity was very real, and quite large.”
The Great Divergence of Policies article has also been featured in the Great Recession and Not-So-Great Recovery by the Financial Times, Free to Spend, Developing Economies Recover Quicker by the New York Times, The Non-Secret of Our Non-Success by The Conscience of a Liberal Blog, and How the IMF became the friend who wants us to work less and drink more by the Washington Post.
An Excerpt from Krugman’s review in The New York Review of Books
“Neil Irwin’s The Alchemists gives us a time and a place at which the major advanced countries abruptly pivoted from stimulus to austerity. The time was early February 2010; the place, somewhat bizarrely, was the remote Canadian Arctic settlement of Iqaluit, where the Group of Seven finance ministers held one of their regularly scheduled summits. Sometimes (often) such summits are little more than ceremonial occasions,
Posted by 7:57 PM
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Sunday, April 21, 2013
From the Financial Times:
This week’s IMF meetings in Washington lacked the sense of crisis which has characterised many such meetings since the crash in 2008. Although the official IMF growth forecasts were revised down slightly for 2013, mainly due to tighter fiscal policy in the US, the organisation also said that downside risks, relative to the central forecasts, had diminished since the October 2012 meetings.
These improved downside risks seem to have stemmed mainly from greater confidence in the financial system, reflecting the budget deal on the US fiscal cliff, and the actions of the ECB to reduce systemic threats to the euro. Global equity markets agree with this: they are up by 13 per cent since last autumn.
There is, however, a dangerous schism between the improvements in financial confidence and the marked lack of improvement in global GDP growth. On this latter problem, the Washington meetings were focused mainly on the weakness of the eurozone, with Christine Lagarde calling for “more investment” in Germany, greater steps towards banking union and bank recapitalisation, and ECB measures to deal with fragmentation in monetary conditions between the core and the periphery. The G20 statement refrained from setting any targets for public debt reduction, which suggests that Keynesian thinking is gaining ground in international policy circles.
The IMF and the US administration are as one on all this, but my impression is (confirmed here by Chris Giles) is that the gap between Washington and Berlin is wider than ever, especially on fiscal stimulus in Germany. There is a marked sense of frustration, but also of resignation, in Washington about the German approach. Plus ça change.
Abstracting from the details of policy in the coming months, it is important not to lose sight of the big picture for the world economy. This was well summarised in a special study on “The Great Divergence of Policies” in Chapter 1 of the IMF’s latestWorld Economic Outlook. Occasionally, a few simple graphs tell an important story:
In the graphs, the red lines represent the current cycle in the advanced economies, the blue lines represent the average of three earlier recessions (1975, 1982 and 1991), and the index numbers are centred on the year before the recessions started. An abnormally deep recession in 2008/09 has been followed by an abnormally weak recovery, so real GDP per capita is now 10 per cent below the levels indicated by previous cycles (Panel A).
Fiscal policy has been tightened everywhere to control public debt, which is much higher than “normal”, so real public spending is about 14 per cent below the cyclical norm (B). With fiscal policy tightening, the whole burden of supporting demand has fallen on monetary policy, so nominal interest rates have fallen to zero (C) and the central banks have resorted to sizeable increases in their balance sheets (D).
Questions About the Not-So-Great Recovery
This familiar story about the dramatic change in the global fiscal/monetary mix raises several questions about the Not-So-Great Recovery.
First, would the global recovery have been stronger if fiscal policy had tightened less rapidly than has actually occurred? Since the short term fiscal multiplier is almost certainly not zero, the answer to this question is clearly “yes”, but it is hard to ascribe the whole of the shortfall in GDP growth to this single factor.
If real government expenditure had performed as normal in this recovery, this would have resulted in spending being about 5 percentage points of GDP higher than it is now, so the fiscal multiplier would have needed to be about 2 in order to explain the whole of the 10 per cent growth shortfall. This seems implausibly high. Furthermore, monetary policy would have been tighter in such fiscal circumstances, and there would have been a somewhat greater (if still small) risk of fiscal crises in some economies. Therefore the Not-So-Great Recovery is not just a fiscal story.
Second, if fiscal policy is not the only factor at work, what else has been going on? Here the primary candidate is surely the collapse and subsequent malfunctioning of the banking system. Kenneth Rogoff and Carmen Reinhart, for all their arithmetical faults, warned that this would be the case, and it has been. Furthermore, the fact that the US repaired its banking system more rapidly than Europe probably explains a good part of the earlier recovery in US private spending in 2012/13. The US/Europe divergence on growth is often attributed entirely to the difference in fiscal policy between the two continents, which means that the difference in bank reform all too easily gets forgotten.
Third, if global fiscal policy is tightening and the European banking sector is still in deep trouble, can a continuation of balance sheet expansion by the central banks produce a stronger recovery? The IMF and its economists seem to be answering “yes” to this question, since they are forecasting much stronger global growth in 2014 and 2015.
But there must surely be severe doubts about this conclusion. Both the IMF and the major central banks are becoming concerned that quantitative easing is causing excessive risk taking in some financial assets, and it is doubtful whether the beneficial effect on the wider economy, via price expectations and aggregate demand, is as powerful as it was at the start.
Conclusion
The IMF’s conclusion is familiar enough: less fiscal tightening should take place in the US this year, along with longer term fiscal reform; root and branch restructuring and recapitalisation of the European banking sector is essential; and monetary accommodation is still needed because it is the only game in town. A familiar message, but this week there was little sign that any of the major policy-makers were listening.
From the Financial Times:
This week’s IMF meetings in Washington lacked the sense of crisis which has characterised many such meetings since the crash in 2008. Although the official IMF growth forecasts were revised down slightly for 2013, mainly due to tighter fiscal policy in the US, the organisation also said that downside risks, relative to the central forecasts, had diminished since the October 2012 meetings.
These improved downside risks seem to have stemmed mainly from greater confidence in the financial system,
Posted by 10:29 PM
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