Assessing potential output growth in the euro area - a growth accounting perspective

For monetary policy purposes it is useful to apply a concept of potential output growth that looks through the fluctuations inherent in most model based estimates. Growth accounting can be a useful tool in this respect, given its focus on average developments in real GDP growth and supply side factors over medium to longer-term horizons. This paper describes the assumptions and measurement issues underlying the growth accounting framework and applies it to euro area data for the period 1980 to 2003. It shows that growth in measured total factor productivity has been the single most important contributor to real GDP growth over this period. However, the contribution to growth from this factor declined between the 1980s and the 1990s, while that from labour increased. Looking forward, the projected demographic developments imply a reduction in average real GDP growth in the coming decades unless compensation is achieved from other supply-side factors.

Growth accounting for the euro area: a structural approach

This paper is concerned with the estimation of euro area potential output growth and its decomposition according to the sources of growth. The growth accounting exercise is based on a multivariate structural time series model which combines the decomposition of total output according to the production function approach with price and wage equations that embody Phillips type relationships linking inflation and nominal wage dynamics to the output gap and cyclical unemployment, respectively. Assuming a Cobb-Douglas technology with constant returns to scale, potential output results from the combination of the trend levels of total factor productivity and factor inputs, capital and labour (hours worked), which is decomposed into labour intensity (average hours worked), the employment rate, the participation rate, and population of working age. The nominal variables (prices and wages) play an essential role in defining the trend levels of the components of potential output, as the latter should pose no inflationary pressures on prices and wages. The structural model is further extended to allow for the estimation of potential output growth and the decomposition according to the sources of growth at different horizons (long-run, medium run and short run); in particular, we propose and evaluate a model–based approach to the extraction of the low–pass component of potential output growth at different cutoff frequencies. The approach has two important advantages: the signal extraction filters have an automatic adaptation property at the boundaries of the sample period, so that the real time estimates do not suffer from what is often referred to as the ”end–of-sample bias”. Secondly, it is possible to assess the uncertainty of potential output growth estimates with different degrees of smoothness. JEL Classification: C32, C51, E32, O47euro area, Low-pass filters, output gap, potential output, Production function approach, Unobserved Components

Real time estimates of the euro area output gap: reliability and forecasting performance

This paper provides evidence on the reliability of euro area real-time output gap estimates. A genuine real-time data set for the euro area is used, including vintages of several sets of euro area output gap estimates available from 1999 to 2006. It turns out that real-time estimates of the output gap are characterised by a high degree of uncertainty, much higher than that resulting from model and estimation uncertainty only. In particular, the evidence indicates that both the magnitude and the sign of the real-time estimates of the euro area output gap are very uncertain. The uncertainty is mostly due to parameter instability, while data revisions seem to play a minor role. To benchmark our results, we repeat the analysis for the US over the same sample. It turns out that US real time estimates are much more correlated with final estimates than for the euro area, data revisions play a larger role, but overall the unreliability in real time of the US output gap measures detected in earlier studies is confirmed in the more recent period. Moreover, despite some difference across output gap estimates and forecast horizons, the results point clearly to a lack of any usefulness of real-time output gap estimates for inflation forecasting both in the short term (one-quarter and one-year ahead) and the medium term (two-year and three-year ahead). By contrast, some evidence is provided indicating that several output gap estimates are useful to forecast real GDP growth, particularly in the short term, and some appear also useful in the medium run. No single output gap measure appears superior to all others in all respects. JEL Classification: E31, E37, E52, E58data revisions, euro area, Inflation forecasts, output gap, real GDP forecasts, real-time data

Comparing Projections and Outcomes of IMF-Supported Programs

"Program numbers" from a sample of IMF-supported programs are studied as if they were forecasts, through statistical analyses of the relationship between projections and outcomes for growth, inflation, and three balance of payments concepts. Statistical bias is found only for projections of inflation and official reserves. Statistical efficiency can be rejected for all variables except growth, suggesting that some program projections were less accurate than they might have been. Nevertheless, most projections are found to have some predictive value. Since several findings are shown to be sample dependent, the full-sample results should be interpreted cautiously. Copyright 2002, International Monetary Fund

The Forecasting Performance of Real Time Estimates of the EURO Area Output Gap

This paper provides real time evidence on the usefulness of the euro area output gap as a leading indicator for inflation and growth. A genuine real-time data set for the euro area is used, including vintages of several alternative gap estimates. It turns out that, despite some difference across output gap estimates and forecast horizons, the results point clearly to a lack of any usefulness of real-time output gap estimates for inflation forecasting both in the short term (one-quarter and one-year ahead) and the medium term (two-year and three-year ahead). By contrast, we find some evidence that several output gap estimates are useful to forecast real GDP growth, particularly in the short term, and some appear also useful in the medium run. A comparison with the US yields similar conclusions.Output gap, real-time data, euro area, inflation forecasts, real GDP forecasts, data revisions.

Housing, consumption and monetary policy: how different are the U.S. and the euro area?

This paper provides a systematic empirical analysis of the role of the housing market in the macroeconomy in the U.S. and the euro area. First, it establishes some stylised facts concerning key variables in the housing market on the two sides of the Atlantic, such as real house prices, residential investment and mortgage debt. It then presents evidence from Structural Vector Autoregressions (SVAR) by focusing on the effects of monetary policy, credit supply and housing demand shocks on the housing market and the broader economy. The analysis shows that similarities outweigh differences as far as the housing market is concerned. The empirical evidence suggests a stronger role for housing in the transmission of monetary policy shocks in the U.S. The evidence is less clear-cut for housing demand shocks. Finally, credit supply shocks seem to matter more in the euro area.residential investment, house prices, credit, monetary policy

Housing, consumption and monetary policy: how different are the US and the euro area?

The paper provides a systematic empirical analysis of the role of the housing market in the macroeconomy in the US and in the euro area. First, it establishes some stylised facts concerning key variables in the housing market, such as the real house price, residential investment and mortgage debt on the two sides of the Atlantic. Then, it presents evidence from Structural Vector Autoregressions (SVAR) by focusing on the effects of three structural shocks, (i) monetary policy, (ii) credit supply and (iii) housing demand shocks on the housing market and the broader economy. We find that similarities overshadow di¤erences as far as the role of the housing market is concerned. We find evidence pointing in the direction of a stronger role for housing in the transmission of monetary policy shocks in the US, while the evidence is less clearcut for housing demand shocks. We also find that credit supply shocks matter more in the euro area. JEL Classification: E22, E44, E52credit, House prices, monetary policy, Residential investment

Instability and nonlinearity in the euro area Phillips curve

This paper provides a comprehensive analysis of the functional form of the euro area Phillips curve over the past three decades. In particular, compared to previous literature we analyse the stability of the relationship in detail, especially as regards the possibility of a time-varying mean of inflation. Moreover, we conduct a sensitivity analysis across different measures of economic slack. Our main findings are two. First, there is strong evidence of time variation in the mean and slope of the Phillips curve occurring in the early to mid 1980s, but not in inflation persistence once the mean shift is allowed for. As a result of the structural change, the Phillips curve became flatter around a lower mean of inflation. Second, we find no significant evidence of non-linearity, in particular in relation to the output gap. JEL Classification: E52, E58Asymmetry, inflation, output gap, smooth transition model, Structural change

Labour productivity developments in the euro area

This paper provides a description and a discussion of some important aspects relating to recent productivity developments in the euro area. Following decades of stronger gains in the euro area than in the US, labour productivity growth has fallen behind that in the US in recent years. This reflects a decline in average labour productivity growth observed in the euro area since the mid-1990s, which stands in sharp contrast with opposite developments in the US. The decline in labour productivity growth experienced in the euro area since the mid-1990s resulted from both lower capital deepening and lower total factor productivity growth. From a sectoral perspective, industries not producing or using intensively information and communication technology (ICT) would appear mostly responsible for the decline in average labour productivity growth since the mid-1990s. These developments were broadly experienced by most euro area countries. A comparison with developments in the US suggests that the euro area economy seems to have benefited much less from increased production and use of ICT technologies, in particular in the services sector. Diverging trends in labour productivity growth between the euro area and the US in recent years mainly reflect developments in a number of specific ICT-using services such as retail, wholesale and some financial services where strong gains were registered in the US. The evidence presented in this paper suggests that, in order to support economic growth in the euro area, emphasis should be given to both policy measures that directly address the determinants of productivity and, given the interactions among the various factors of growth, to policies that raise labour utilisation.