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We nowcast world trade using machine learning, distinguishing between tree-based methods (random forest, gradient boosting) and their regression-based counterparts (macroeconomic random forest, linear gradient boosting). While much less used in the literature, the latter are found to outperform...
Persistent link: https://www.econbiz.de/10014362630
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...
Persistent link: https://www.econbiz.de/10014484491
This paper proposes a new methodology based on textual analysis to forecast U.S. recessions. Specifically, the paper develops an index in the spirit of Baker et al. (2016) and Caldara and Iacoviello (2018) which tracks developments in U.S. real activity. When used in a standard recession...
Persistent link: https://www.econbiz.de/10012421073
and Support Vector Machines text classification. We show that the latter method tends to provide more stable and accurate … using an advanced text mining classification model to measure the medias perception and the Taylor rule application confirms …
Persistent link: https://www.econbiz.de/10011669467
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The aim of central bank communication is to provide information on monetary policy and the economic outlook in a timely manner to the public. While research on central bank communication and specifically the European Central Bank's press conference has shown that it has the potential to move...
Persistent link: https://www.econbiz.de/10013448668
We develop a measure of overall financial risk in China by applying machine learning techniques to textual data. A pre-defined set of relevant newspaper articles is first selected using a specific constellation of risk-related keywords. Then, we employ topical modelling based on an unsupervised...
Persistent link: https://www.econbiz.de/10013492909
News media play a fundamental role in the communication between central banks and the public. Besides stimulating institutional transparency, the reporting of the news media on a central bank's activities is also the main source of information about the institution for most citizens. To better...
Persistent link: https://www.econbiz.de/10014477700
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