Artificial Prediction Markets, Forecast Combinations and Classical Time Series
|Autor:||Mgr. Marek Lipán|
|Rok:||2018 - letní|
|Vedoucí:|| doc. PhDr. Jozef Baruník Ph.D.
|Typ práce:|| Diplomová
|Ocenění:||Pochvala ředitele IES FSV UK za vynikající diplomovou práci.
Deloitte Outstanding Thesis Award
|Abstrakt:||Abstract Economic agents often face situations, where there are multiple competing fore- casts available. Despite five decades of research on forecast combinations, most of the methods introduced so far fail to outperform the equal weights forecast combination in empirical applications. In this study, we gather a wide spectrum of forecast combination methods and reexamine these findings in two different classical economic times series forecasting applications. These include out-of- sample combining forecasts from the ECB Survey of Professional Forecasters and forecasts of the realized volatility of the U.S. Treasury futures log-returns. We asses the performance of artificial predictions markets, a class of machine learning methods, which has not yet been applied to the problem of combin- ing economic times series forecasts. Furthermore, we propose a new simple method called Market for Kernels, which is designed specifically for combining time series forecasts. We found that equal weights can be significantly out- performed by several forecast combinations, including Bates-Granger methods and artificial prediction markets in the ECB Survey of Professional Forecasters application and by almost all examined forecast combinations in the financial application. We also found that the Market for Kernels forecast performance is comparable to the best forecast combinations from the literature in both of the applications. JEL Classification C00, C53, C58 Keywords Forecast combinations, artificial prediction mar- kets, Market for Kernels, forecasting economic time series Author’s e-mail firstname.lastname@example.org Supervisor’s e-mail email@example.com|