2026-04-14T06:26:10Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1750542025-12-05T10:16:29Zcom_2072_1057col_2072_478771col_2072_478911col_2072_478917

00925njm 22002777a 4500 dc Clavería González, Óscar author Monte Moreno, Enric author Torra Porras, Salvador author 2021-03-14T21:08:30Z 2021-03-14T21:08:30Z 2021 We apply the two-step machine-learning method proposed by Claveria et al. (2021) to generate country-specific sentiment indicators that provide estimates of year-on-year GDP growth rates. In the first step, by means of genetic programming, business and consumer expectations are evolved to derive sentiment indicators for 19 European economies. In the second step, the sentiment indicators are iteratively re-computed and combined each period to forecast yearly growth rates. To assess the performance of the proposed approach, we have designed two out-of-sample experiments: a nowcasting exercise in which we recursively generate estimates of GDP at the end of each quarter using the latest survey data available, and an iterative forecasting exercise for different forecast horizons We found that forecasts generated with the sentiment indicators outperform those obtained with time series models. These results show the potential of the methodology as a predictive tool Creixement econòmic Anàlisi de regressió Genètica Economic development Regression analysis Genetics Nowcasting and forecasting GDP growth with machine-learning sentiment indicators