Official reports and case studies reveal that China experienced different means of communication with the world powers since it joined the World Trade Organization in 2001. In the first five years, China had public communication with both the United States and the European Union under the...

We give an equation reformulation of the Karush–Kuhn–Tucker (KKT) condition for the second order cone optimization problem. The equation is strongly semismooth and its Clarke subdifferential at the KKT point is proved to be nonsingular under the constraint nondegeneracy condition and a...

Using hospital and outpatient Medicare claims between 2006 and 2009, this cross-sectional study describes patterns of hospital and regional performance in the outcomes of elderly patients with pneumonia, a leading cause of hospitalization and death in this population. Risk-standardized 30-day...

We propose a new semiparametric autoregressive duration (SACD) model, which incorporates the parametric and nonparametric estimators of the conditional duration in a multiplicative way. Asymptotic properties for this combined estimator are presented. The empirical application to the transaction...

Investigations regarding the differences between Chinese only and non-only children primarily examine children's social behaviors, which are closely related to their early relationships with mothers and teachers. In recent years, the number of non-only children born in urban areas has increased...

This paper develops the approximate nite-sample bias of the ordinary least squares or quasi maximum likelihood estimator of the mean reversion parameter in continuous-time Levy processes. For the special case of Gaussian processes, our results reduce to those of Tang and Chen (2009) (when the...

This article provides a national perspective on hospital performance for 30-day risk-standardized mortality rates and risk-standardized readmission rates for patients hospitalized with acute myocardial infarction and heart failure.

In 2009, the Centers for Medicare & Medicaid Services publicly reported hospital-level risk-standardized 30-day mortality and readmission rates after acute myocardial infarction (AMI) and heart failure (HF). The authors calculated 30-day mortality and readmission rates for all Medicare...

This paper presents the day-ahead energy planning of passenger cars with 100% electric vehicle (EV) penetration in the Nordic region by 2050. EVs will play an important role in the future energy systems which can both reduce the greenhouse gas (GHG) emissions from the transport sector and...