User profiles for Guofu Zhou

Guofu Zhou

Washington 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 …

Out-of-sample equity premium prediction: Combination forecasts and links to the real economy

DE Rapach, JK Strauss, G Zhou - The Review of Financial …, 2010 - academic.oup.com
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 …

Investor sentiment aligned: A powerful predictor of stock returns

D Huang, F Jiang, J Tu, G Zhou - The Review of Financial …, 2015 - academic.oup.com
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, …

Forecasting the equity risk premium: the role of technical indicators

CJ Neely, DE Rapach, J Tu, G Zhou - Management science, 2014 - pubsonline.informs.org
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 …

Optimal portfolio choice with parameter uncertainty

R Kan, G Zhou - Journal of Financial and Quantitative Analysis, 2007 - cambridge.org
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 …

Asymmetries in stock returns: Statistical tests and economic evaluation

Y Hong, J Tu, G Zhou - The Review of Financial Studies, 2007 - academic.oup.com
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 …

International stock return predictability: What is the role of the United States?

DE Rapach, JK Strauss, G Zhou - The Journal of Finance, 2013 - Wiley Online Library
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 …

Forecasting stock returns

D Rapach, G Zhou - Handbook of economic forecasting, 2013 - Elsevier
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 …

Markowitz meets Talmud: A combination of sophisticated and naive diversification strategies

J Tu, G Zhou - Journal of Financial Economics, 2011 - Elsevier
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 …

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 …