Pas disponible en français
Jean-Charles Bricongne
- 31 January 2024
- WORKING PAPER SERIES - No. 2900Details
- Abstract
- This paper exploits daily infrared images taken from satellites to track economic activity in advanced and emerging countries. We first develop a framework to read, clean, and exploit satellite images. Our algorithm uses the laws of physics (Planck’s law) and machine learning to detect the heat produced by cement plants in activity. This allows us to monitor in real-time whether a cement plant is working. Using this information on around 500 plants, we construct a satellite-based index tracking activity. We show that using this satellite index outperforms benchmark models and alternative indicators for nowcasting the production of the cement industry as well as the activity in the construction sector. Comparing across methods, we find neural networks yields significantly more accurate predictions as they allow to exploit the granularity of our daily and plant-level data. Overall, we show that combining satellite images and machine learning allows to track economic activity accurately.
- JEL Code
- C51 : Mathematical and Quantitative Methods→Econometric Modeling→Model Construction and Estimation
C81 : Mathematical and Quantitative Methods→Data Collection and Data Estimation Methodology, Computer Programs→Methodology for Collecting, Estimating, and Organizing Microeconomic Data, Data Access
E23 : Macroeconomics and Monetary Economics→Consumption, Saving, Production, Investment, Labor Markets, and Informal Economy→Production
E37 : Macroeconomics and Monetary Economics→Prices, Business Fluctuations, and Cycles→Forecasting and Simulation: Models and Applications
- 21 September 2021
- OCCASIONAL PAPER SERIES - No. 263Details
- Abstract
- This paper assesses how globalisation has shaped the economic environment in which the ECB operates and discusses whether this warrants adjustments to the monetary policy strategy. The paper first looks at how trade and financial integration have evolved since the last strategy review in 2003. It then examines the effects of these developments on global productivity growth, the natural interest rate (r*), inflation trends and monetary transmission. While trade globalisation initially boosted productivity growth, this effect may be waning as trade integration slows and market contestability promotes a winner-takes-all environment. The impact of globalisation on r* has been ambiguous: downward pressures, fuelled by global demand for safe assets and an increase in the propensity to save against a background of rising inequality, are counteracted by upward pressures, from the boost to global productivity associated with greater trade integration. Headline inflation rates have become more synchronised globally, largely because commodity prices are increasingly determined by global factors. Meanwhile, core inflation rates show a lower degree of commonality. Globalisation has made a rather modest contribution to the synchronised fall in trend inflation across countries and contributed only moderately to the reduction in the responsiveness of inflation to changes in activity. Regarding monetary transmission, globalisation has made the role of the exchange rate more complex by introducing new mechanisms through which it affects financial conditions, real activity and price dynamics. Against the background of this discussion, the paper then examines the implications for the ECB’s monetary policy strategy. In doing so, it asks two questions. How is the ECB’s economic and monetary analysis affected by globalisation? And how does globalisation influence the choice of the ECB’s monetary policy objective and instruments? ...
- JEL Code
- E58 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Central Banks and Their Policies
F42 : International Economics→Macroeconomic Aspects of International Trade and Finance→International Policy Coordination and Transmission
F44 : International Economics→Macroeconomic Aspects of International Trade and Finance→International Business Cycles
F62 : International Economics→Economic Impacts of Globalization→Macroeconomic Impacts
F65 : International Economics→Economic Impacts of Globalization→Finance
- 7 December 2012
- OCCASIONAL PAPER SERIES - No. 139Details
- Abstract
- The onset of the financial crisis in 2008 has highlighted the problems of diverging external imbalances within Economic and Monetary Union (EMU) and the role of persistent losses in competitiveness. This paper starts by investigating some of the competitiveness factors which contributed to external imbalances in euro area countries. The evidence suggests significant heterogeneity across countries in both price/cost and non-price competitiveness in the euro area and that there is no one factor, but rather a range of potential factors explaining diverging external imbalances. In particular, while non-price competitiveness effects contributed largely to the trade surplus in some countries, for some southern European countries the trade balance was also driven by price factors. The second part of the paper studies the implications of competitiveness adjustment by means of quantitative tools. Using four different multi-country macro models, improvements in both price/cost aspects (namely wage reduction, productivity improvements or fiscal devaluation) and non-price competitiveness factors (quality improvements) were shown - under certain conditions - to improve external imbalances. The analysis suggests differences in countries' composition of trade could lead to heterogeneity in the potential gains from improvements in competitiveness.
- JEL Code
- F10 : International Economics→Trade→General
F41 : International Economics→Macroeconomic Aspects of International Trade and Finance→Open Economy Macroeconomics
F43 : International Economics→Macroeconomic Aspects of International Trade and Finance→Economic Growth of Open Economies
F47 : International Economics→Macroeconomic Aspects of International Trade and Finance→Forecasting and Simulation: Models and Applications
O52 : Economic Development, Technological Change, and Growth→Economywide Country Studies→Europe
- 20 September 2010
- WORKING PAPER SERIES - No. 1245Details
- Abstract
- Global trade contracted quickly and severely during the global crisis. This paper, using a unique dataset of French firms, matching together export data with firm-level credit constraints, shows that most of the 2008-2009 trade collapse is accounted by the unprecedented demand shock and by product characteristics. While all firms have been evenly affected by the crisis, large firms did so mainly through the intensive margin and by reducing the portfolio of products offered in each destination served. Smaller exporters instead have been forced to reduce the range of destinations served or to stop exporting altogether. Credit constraints, on their part, emerged as an aggravating factor for firms active in sectors of high financial dependence. Nonetheless, as the share of credit constrained firms is small and their number did not increase much during the crisis, the overall impact of credit constraints on trade remains limited.
- JEL Code
- F02 : International Economics→General→International Economic Order
F10 : International Economics→Trade→General
G01 : Financial Economics→General→Financial Crises
- 21 July 2010
- WORKING PAPER SERIES - No. 1227Details
- Abstract
- The unprecedented drop in international trade during the last quarter of 2008 and the first quarter of 2009 has mainly been analysed at the macroeconomic or sectoral level. However, exporters who are heterogeneous in terms of productivity, size or external financial dependence should be heterogeneously affected by the crisis. This issue is examined in this paper by using data on monthly exports at the product and destination level for some 100,000 individual French exporters, up to 2009M4. We show that the drop in French exports is mainly due to the intensive margin of large exporters. Small and large exporters are evenly affected when sectoral and geographical specialisations are controlled for. Lastly, exporters (small and large) in sectors structurally more dependent on external finance are the most affected by the crisis.
- JEL Code
- F02 : International Economics→General→International Economic Order
F10 : International Economics→Trade→General
G01 : Financial Economics→General→Financial Crises