User profiles for Guofu Zhou
Guofu ZhouWashington University in St. Louis Verified email at wustl.edu Cited by 16214 |
Over 12% efficiency nonfullerene all‐small‐molecule organic solar cells with sequentially evolved multilength scale morphologies
…, Q Rong, L Shui, F Liu, X Peng, G Zhou… - Advanced …, 2019 - Wiley Online Library
In this paper, two near‐infrared absorbing molecules are successfully incorporated into
nonfullerene‐based small‐molecule organic solar cells (NFSM‐OSCs) to achieve a very high …
nonfullerene‐based small‐molecule organic solar cells (NFSM‐OSCs) to achieve a very high …
Out-of-sample equity premium prediction: Combination forecasts and links to the real economy
Welch and Goyal (2008) find that numerous economic variables with in-sample predictive
ability for the equity premium fail to deliver consistent out-of-sample forecasting gains relative …
ability for the equity premium fail to deliver consistent out-of-sample forecasting gains relative …
Investor sentiment aligned: A powerful predictor of stock returns
We propose a new investor sentiment index that is aligned with the purpose of predicting
the aggregate stock market. By eliminating a common noise component in sentiment proxies, …
the aggregate stock market. By eliminating a common noise component in sentiment proxies, …
Forecasting the equity risk premium: the role of technical indicators
Academic research relies extensively on macroeconomic variables to forecast the US equity
risk premium, with relatively little attention paid to the technical indicators widely employed …
risk premium, with relatively little attention paid to the technical indicators widely employed …
Optimal portfolio choice with parameter uncertainty
In this paper, we analytically derive the expected loss function associated with using sample
means and the covariance matrix of returns to estimate the optimal portfolio. Our analytical …
means and the covariance matrix of returns to estimate the optimal portfolio. Our analytical …
Asymmetries in stock returns: Statistical tests and economic evaluation
We provide a model-free test for asymmetric correlations in which stocks move more often
with the market when the market goes down than when it goes up, and also provide such tests …
with the market when the market goes down than when it goes up, and also provide such tests …
International stock return predictability: What is the role of the United States?
We investigate lead‐lag relationships among monthly country stock returns and identify a
leading role for the United States: lagged US returns significantly predict returns in numerous …
leading role for the United States: lagged US returns significantly predict returns in numerous …
Forecasting stock returns
We survey the literature on stock return forecasting, highlighting the challenges faced by
forecasters as well as strategies for improving return forecasts. We focus on US equity premium …
forecasters as well as strategies for improving return forecasts. We focus on US equity premium …
Markowitz meets Talmud: A combination of sophisticated and naive diversification strategies
The modern portfolio theory pioneered by Markowitz (1952) is widely used in practice and
extensively taught to MBAs. However, the estimated Markowitz portfolio rule and most of its …
extensively taught to MBAs. However, the estimated Markowitz portfolio rule and most of its …
Measuring the pricing error of the arbitrage pricing theory
J Geweke, G Zhou - The review of financial studies, 1996 - academic.oup.com
This article provides an exact Bayesian framework for analyzing the arbitrage pricing theory
(APT). Based on the Gibbs sampler, we show how to obtain the exact posterior distributions …
(APT). Based on the Gibbs sampler, we show how to obtain the exact posterior distributions …