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Article
Non-Parametric Stochastic Simulations to Investigate Uncertainty around the OECD Indicator Model Forecasts
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Year: 2012 Publisher: Paris : OECD Publishing,

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Abstract

The forecasting uncertainty around point macroeconomic forecasts is usually measured by the historical performance of the forecasting model, using measures such as root mean squared forecasting errors (RMSE). This measure, however, has the major drawback that it is constant over time and hence does not convey any information on the specific source of uncertainty nor the magnitude and balance of risks in the immediate conjuncture. Moreover, specific parametric assumptions on the probability distribution of forecasting errors are needed in order to draw confidence bands around point forecasts. This paper proposes an alternative time-varying simulated RMSE, obtained by means of non-parametric stochastic simulations, which combines the uncertainty around the model’s parameters and the structural errors term to construct asymmetric confidence bands around point forecasts. The procedure is applied, by way of example, to the short-term real GDP growth forecasts generated by the OECD Indicator Model for Germany. The empirical probability distributions of the GDP growth forecasts, derived through the bootstrapping technique, allow the ex ante probability of, for example, a negative GDP growth forecast for the current quarter to be estimated. The results suggest the presence of peaks of higher uncertainty related to economic recession events, with a balance of risks which became negative in the immediate aftermath of the global financial crisis.

Keywords

Economics


Article
Non-Parametric Stochastic Simulations to Investigate Uncertainty around the OECD Indicator Model Forecasts
Author:
Year: 2012 Publisher: Paris : OECD Publishing,

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Abstract

The forecasting uncertainty around point macroeconomic forecasts is usually measured by the historical performance of the forecasting model, using measures such as root mean squared forecasting errors (RMSE). This measure, however, has the major drawback that it is constant over time and hence does not convey any information on the specific source of uncertainty nor the magnitude and balance of risks in the immediate conjuncture. Moreover, specific parametric assumptions on the probability distribution of forecasting errors are needed in order to draw confidence bands around point forecasts. This paper proposes an alternative time-varying simulated RMSE, obtained by means of non-parametric stochastic simulations, which combines the uncertainty around the model’s parameters and the structural errors term to construct asymmetric confidence bands around point forecasts. The procedure is applied, by way of example, to the short-term real GDP growth forecasts generated by the OECD Indicator Model for Germany. The empirical probability distributions of the GDP growth forecasts, derived through the bootstrapping technique, allow the ex ante probability of, for example, a negative GDP growth forecast for the current quarter to be estimated. The results suggest the presence of peaks of higher uncertainty related to economic recession events, with a balance of risks which became negative in the immediate aftermath of the global financial crisis.

Keywords

Economics


Article
Assessing the Impact of the Financial Crisis on Structural Unemployment in OECD Countries
Authors: ---
Year: 2010 Publisher: Paris : OECD Publishing,

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Abstract

The global recession is likely to results in higher structural unemployment for some time in many OECD countries. This paper assesses how the shock to aggregate unemployment as a result of the economic crisis may be transmitted to structural unemployment through hysteresis effects that occur through the rise in long-term unemployment. The estimated increase in structural unemployment due to the crisis is estimated at ¾ percentage point in the OECD as a whole, but the paper highlights wide cross-country differences with the largest increases expected in those European countries where unemployment is increasing most and where institutional settings remain less favorable than elsewhere, notably Spain and Ireland.

Keywords

Economics


Article
A Dynamic Factor Model for World Trade Growth
Authors: ---
Year: 2011 Publisher: Paris : OECD Publishing,

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Abstract

This paper reviews the main monthly indicators that could help forecasting world trade and compares different type of forecasting models using these indicators. In particular it develops dynamic factor models (DFM) which have the advantage of handling larger datasets of information than bridge models and allowing for the inclusion of numerous monthly indicators on a national and world-wide level such as financial indicators, transportation and shipping indices, supply and orders variables and information technology indices. The comparison of the forecasting performance of the DFMs with more traditional bridge equation models as well as autoregressive benchmarking models shows that, the dynamic factor approach seems to perform better, especially when a large set of indicators is used, but also that the marginal gains in adding indicators seems to diminish after a certain stage.

Keywords

Economics


Article
Reassessing the NAIRUs after the Crisis
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Year: 2011 Publisher: Paris : OECD Publishing,

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Abstract

The financial crisis has resulted in a substantial increase in unemployment in the OECD. This paper shows that this increase has reversed the reduction in structural unemployment which has been estimated to have occurred in most OECD countries since the late 1990s. Structural unemployment is defined as a time-varying NAIRU derived from the information contained in a reduced Phillips curve equation (linking inflation to the unemployment gap) by means of a Kalman filter. The overall limited revisions in historical NAIRU estimated in 2008 after such a large labour market shock support the robustness of the OECD approach. This approach is therefore extended to almost all OECD countries. Alternative specifications of the Phillips curve are proposed for some specific groups of countries.

Keywords

Economics


Article
Reassessing the NAIRUs after the Crisis
Authors: ---
Year: 2011 Publisher: Paris : OECD Publishing,

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Abstract

The financial crisis has resulted in a substantial increase in unemployment in the OECD. This paper shows that this increase has reversed the reduction in structural unemployment which has been estimated to have occurred in most OECD countries since the late 1990s. Structural unemployment is defined as a time-varying NAIRU derived from the information contained in a reduced Phillips curve equation (linking inflation to the unemployment gap) by means of a Kalman filter. The overall limited revisions in historical NAIRU estimated in 2008 after such a large labour market shock support the robustness of the OECD approach. This approach is therefore extended to almost all OECD countries. Alternative specifications of the Phillips curve are proposed for some specific groups of countries.

Keywords

Economics


Article
A Dynamic Factor Model for World Trade Growth
Authors: ---
Year: 2011 Publisher: Paris : OECD Publishing,

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Abstract

This paper reviews the main monthly indicators that could help forecasting world trade and compares different type of forecasting models using these indicators. In particular it develops dynamic factor models (DFM) which have the advantage of handling larger datasets of information than bridge models and allowing for the inclusion of numerous monthly indicators on a national and world-wide level such as financial indicators, transportation and shipping indices, supply and orders variables and information technology indices. The comparison of the forecasting performance of the DFMs with more traditional bridge equation models as well as autoregressive benchmarking models shows that, the dynamic factor approach seems to perform better, especially when a large set of indicators is used, but also that the marginal gains in adding indicators seems to diminish after a certain stage.

Keywords

Economics


Article
Assessing the Impact of the Financial Crisis on Structural Unemployment in OECD Countries
Authors: ---
Year: 2010 Publisher: Paris : OECD Publishing,

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Abstract

The global recession is likely to results in higher structural unemployment for some time in many OECD countries. This paper assesses how the shock to aggregate unemployment as a result of the economic crisis may be transmitted to structural unemployment through hysteresis effects that occur through the rise in long-term unemployment. The estimated increase in structural unemployment due to the crisis is estimated at ¾ percentage point in the OECD as a whole, but the paper highlights wide cross-country differences with the largest increases expected in those European countries where unemployment is increasing most and where institutional settings remain less favorable than elsewhere, notably Spain and Ireland.

Keywords

Economics


Article
Structural and Cyclical Factors behind Current-Account Balances
Authors: --- ---
Year: 2010 Publisher: Paris : OECD Publishing,

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Abstract

Global external imbalances widened persistently over the last several years and have narrowed abruptly over the course of the financial crisis. Understanding the extent to which structural or cyclical factors may have driven these patterns is important to assess the likely evolution of global imbalances going forward, as well as the potential adjustment that can be achieved through changes in policy. This paper assesses the link between structural and cyclical factors and current-account balances using a panel of 94 countries from 1973 to 2008. We find that the medium-term evolution of global external imbalances can be related in large part to structural factors including cross-country differences in demographics, fiscal deficits, oil dependency and intensity, stage of economic development, financial market development, and institutional quality. Part of the narrowing in current-account balances since the financial crisis appears to be related to various cyclical factors including changes in output growth, oil prices, and exchange rates, and may be expected to reverse alongside the economic recovery.

Keywords

Economics


Article
Would a Growth Slowdown in Emerging Markets Spill Over to High-income Countries? : A Quantitative Assessment
Authors: --- ---
Year: 2014 Publisher: Paris : OECD Publishing,

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Abstract

Growth in emerging market economies (EMEs) is set to durably slow from the rates observed over 2010-12 as cyclical effects fade, potential growth declines and external financing conditions tighten. Large negative current account balances make some EMEs vulnerable to sudden reversals in capital flows while exceptionally rapid credit expansions, as those observed in Brazil, China, Poland and Turkey over the past years, may have raised financial risk. This paper assesses recent developments and vulnerabilities in EMEs and uses macroeconometric model simulations to provide quantitative estimates of spillovers to highincome countries. The results suggest that for each slowdown of 2 percentage points in EMEs, highincome countries’ growth could be around ⅔ percentage points lower on average, with around ½ percentage point accounted for by trade. Experience with past EME crises suggests that this could be exacerbated by effects from exchange rates and by financial market turbulence. OECD countries which would be hit hardest include Belgium, Japan and the Netherlands, reflecting mainly strong trade linkages with EMEs.

Keywords

Economics

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