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α: calibrated so average coauthorship-adjusted count equals average raw count
We conduct a comprehensive international study of predictability in housing markets using the rent-price ratio as a predictive variable. On data from 18 OECD countries we generally find return predictability in accordance with time-varying risk-premia, but we also document two puzzles. First, there is a highly unstable predictive pattern in rent growth across countries and time periods. Second, the predictive patterns are highly dependent on whether housing returns and rents are measured in nominal or real terms. These results are difficult to reconcile with fully rational expectations. Among other things, the results indicate that housing markets in many countries suffer from money illusion.