User profiles for Xiaoyan Zhang

Xiaoyan Zhang

Xinyuan Chair Professor of Finance, Tsinghua University
Verified email at pbcsf.tsinghua.edu.cn
Cited by 15925

The cross‐section of volatility and expected returns

A Ang, RJ Hodrick, Y Xing, X Zhang - The journal of finance, 2006 - Wiley Online Library
We examine the pricing of aggregate volatility risk in the cross‐section of stock returns.
Consistent with theory, we find that stocks with high sensitivities to innovations in aggregate …

Ultrafast Saturable Absorption of Two-Dimensional MoS2 Nanosheets

…, D Fox, Y Feng, X Zhang, B Jiang, Q Zhao, H Zhang… - ACS …, 2013 - ACS Publications
Employing high-yield production of layered materials by liquid-phase exfoliation, molybdenum
disulfide (MoS 2 ) dispersions with large populations of single and few layers were …

High idiosyncratic volatility and low returns: International and further US evidence

A Ang, RJ Hodrick, Y Xing, X Zhang - Journal of Financial Economics, 2009 - Elsevier
Stocks with recent past high idiosyncratic volatility have low future average returns around
the world. Across 23 developed markets, the difference in average returns between the …

International stock return comovements

G Bekaert, RJ Hodrick, X Zhang - The Journal of Finance, 2009 - Wiley Online Library
We examine international stock return comovements using country‐industry and country‐style
portfolios as the base portfolios. We first establish that parsimonious risk‐based factor …

Which shorts are informed?

E Boehmer, CM Jones, X Zhang - The Journal of Finance, 2008 - Wiley Online Library
We construct a long daily panel of short sales using proprietary NYSE order data. From 2000
to 2004, shorting accounts for more than 12.9% of NYSE volume, suggesting that shorting …

2D materials beyond graphene for high‐performance energy storage applications

X Zhang, L Hou, A Ciesielski… - Advanced Energy …, 2016 - Wiley Online Library
Energy crisis is one of the most urgent and critical issues in our modern society. Currently,
there is an increasing demand for efficient, low‐cost, light‐weight, flexible and …

Superparamagnetic graphene oxide–Fe 3 O 4 nanoparticles hybrid for controlled targeted drug carriers

X Yang, X Zhang, Y Ma, Y Huang, Y Wang… - Journal of materials …, 2009 - pubs.rsc.org
A superparamagnetic graphene oxide –Fe3O4nanoparticles hybrid (GO–Fe3O4) was
prepared via a simple and effective chemical precipitation method. The amount of loading of …

High-efficiency loading and controlled release of doxorubicin hydrochloride on graphene oxide

X Yang, X Zhang, Z Liu, Y Ma, Y Huang… - The Journal of Physical …, 2008 - ACS Publications
A novel graphene oxide−doxorubicin hydrochloride nanohybrid (GO−DXR) was prepared via
a simple noncovalent method, and the loading and release behaviors of DXR on GO were …

[PDF][PDF] Organic photovoltaic devices based on a novel acceptor material: graphene

Z Liu, Q Liu, Y Huang, Y Ma, S Yin, X Zhang… - Advanced …, 2008 - academia.edu
Polymer-based organic photovoltaic (OPV) materials are being sought for a solution-processable,
ffexible, and lightweight solar energy conversion platform,[1] with the potential to use …

[HTML][HTML] Smoothened mutants reveal redundant roles for Shh and Ihh signaling including regulation of L/R asymmetry by the mouse node

XM Zhang, M Ramalho-Santos, AP McMahon - Cell, 2001 - cell.com
Genetic analyses in Drosophila have demonstrated that the multipass membrane protein
Smoothened (Smo) is essential for all Hedgehog signaling. We show that Smo acts epistatic to …