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In several recent studies unit root methods have been used in detection of financial bubbles in asset prices. The basic idea is that fundamental changes in the autocorrelation structure of relevant time series imply the presence of a rational price bubble. We provide cross-country evidence for...
Persistent link: https://www.econbiz.de/10011976947
In this study, we apply a rolling window approach to wavelet-filtered (denoised) S&P500 returns (2000–2020) to obtain time varying Hurst exponents. We analyse the dynamics of the Hurst exponents by applying statistical tests (e.g., for stationarity, Gaussianity and self-similarity), a...
Persistent link: https://www.econbiz.de/10013229642
This paper investigates the predictability of exchange rate changes by extracting the factors from the three-, four-, and five-factor model of the relative Nelson-Siegel class. Our empirical analysis shows that the relative spread factors are important for predicting future exchange rate...
Persistent link: https://www.econbiz.de/10011884108
This article analyzes the manifold situations in which the efficient-market hypothesis (EMH) has influenced — or has failed to influence — federal securities regulation and state corporate law, and the prospective roles for the EMH in these contexts. In federal securities regulation, the EMH...
Persistent link: https://www.econbiz.de/10013100915
I study whether evolution in the number of Google Internet searches for particular keywords can predict volatility in the market for foreign currency. I find that data on Google searches for the keywords "economic crisis and financial crisis" and "recession" has incremental predictive power...
Persistent link: https://www.econbiz.de/10013008190
exchange rates dynamics in the foreign currencies exchange markets in the classic finances theory; 3) the description on the … theory; 4) the derivation of the time dependent/time independent wave equation in the quantum finances theory; 5) the …/time independent wave equation in the quantum finances theory; 6) the discussion on the developed software program with the embedded …
Persistent link: https://www.econbiz.de/10013013057
This paper employs the post — Least Absolute Shrinkage and Selection Operator (post — LASSO) to make rolling 1-month--ahead currency excess return forecasts using all other currencies' lagged forward discounts as candidate predictors. The trading strategy of buying (selling) quintile...
Persistent link: https://www.econbiz.de/10012850361
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