Testing the Prebisch-Singer Hypothesis since 1650 Evidence from Panel Techniques that Allow for Multiple Breaks

In this paper, we re-examine two important aspects of the dynamics of relative primary commodity prices, namely the secular trend and the short run volatility. To do so, we employ 25 series, some of them starting as far back as 1650 and powerful panel data stationarity tests that allow for endogenou...

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Bibliographic Details
Main Author: Arezki, Rabah
Other Authors: Hadri, Kaddour, Loungani, Prakash, Rao, Yao
Format: eBook
Language:English
Published: Washington, D.C. International Monetary Fund 2013
Series:IMF Working Papers
Subjects:
Online Access:
Collection: International Monetary Fund - Collection details see MPG.ReNa
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260 |a Washington, D.C.  |b International Monetary Fund  |c 2013 
300 |a 37 pages 
651 4 |a China, People's Republic of 
653 |a Commodity price fluctuations 
653 |a Energy 
653 |a Finance 
653 |a Farm produce 
653 |a Dynamic Treatment Effect Models 
653 |a Other Primary Products 
653 |a Environment 
653 |a Commodity exchanges 
653 |a Natural Resources 
653 |a Diffusion Processes 
653 |a General Financial Markets: General (includes Measurement and Data) 
653 |a Agriculture: General 
653 |a Time-Series Models 
653 |a Investments: Commodities 
653 |a Commodities 
653 |a Financial markets 
653 |a Economic Development: Agriculture 
653 |a Prices 
653 |a Macroeconomics 
653 |a Commodity prices 
653 |a Agricultural commodities 
653 |a Dynamic Quantile Regressions 
653 |a Investment & securities 
653 |a Commodity markets 
653 |a Commercial products 
653 |a Finance: General 
653 |a Commodity Markets 
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700 1 |a Loungani, Prakash 
700 1 |a Rao, Yao 
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520 |a In this paper, we re-examine two important aspects of the dynamics of relative primary commodity prices, namely the secular trend and the short run volatility. To do so, we employ 25 series, some of them starting as far back as 1650 and powerful panel data stationarity tests that allow for endogenous multiple structural breaks. Results show that all the series are stationary after allowing for endogeneous multiple breaks. Test results on the Prebisch-Singer hypothesis, which states that relative commodity prices follow a downward secular trend, are mixed but with a majority of series showing negative trends. We also make a first attempt at identifying the potential drivers of the structural breaks. We end by investigating the dynamics of the volatility of the 25 relative primary commodity prices also allowing for endogenous multiple breaks. We describe the often time-varying volatility in commodity prices and show that it has increased in recent years