Assessment of the effect of the financial crisis on agents' expectations through symbolic regression

Agents' perceptions on the state of the economy can be affected during economic crises. Tendency surveys are the main source of agents' expectations. The main objective of this study is to assess the impact of the 2008 financial crisis on agents' expectations. With this aim, we evalua...

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Detalles Bibliográficos
Autores: Clavería González, Óscar, Monte Moreno, Enric, Torra Porras, Salvador
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/107026
Acceso en línea:https://hdl.handle.net/2445/107026
Access Level:acceso abierto
Palabra clave:Anàlisi de regressió
Algorismes
Programació (Matemàtica)
Previsió econòmica
Regression analysis
Algorithms
Mathematical programming
Economic forecasting
Descripción
Sumario:Agents' perceptions on the state of the economy can be affected during economic crises. Tendency surveys are the main source of agents' expectations. The main objective of this study is to assess the impact of the 2008 financial crisis on agents' expectations. With this aim, we evaluate the capacity of survey-based expectations to anticipate economic growth in the United States, Japan, Germany and the United Kingdom. We propose a symbolic regression (SR) via genetic programming approach to derive mathematical functional forms that link survey-based expectations to GDP growth. By combining the main SR-generated indicators, we generate estimates of the evolution of GDP. Finally, we analyse the effect of the crisis on the formation of expectations, and we find an improvement in the capacity of agents' expectations to anticipate economic growth after the crisis in all countries except Germany.