Model selection is difficult to analyse yet theoretically and empirically important, especially for high-dimensional data analysis. Recently the least absolute shrinkage and selection operator (Lasso) has been applied in the statistical and econometric literature. Consis- tency of Lasso has been...

In this paper, we study the generalization ability (GA)---the ability of a model to predict outcomes in new samples from the same population---of the extremum estimators. By adapting the classical concentration inequalities, we propose upper bounds for the empirical out-of-sample prediction...

In this paper, we study the performance of extremum estimators from the perspective of generalization ability (GA): the ability of a model to predict outcomes in new samples from the same population. By adapting the classical concentration inequalities, we derive upper bounds on the empirical...

Based on the data of Chinese A-share listed companies from 2000 to 2017, a system dynamic panel model is adopted to examine the impact and action mechanisms of the minimum wage standard on the “quantity” and “quality” of corporate innovation in China. Our study finds that: (1) the...

We analyze inventions in green energy technologies over the period 2005-2017. We use a novel dataset, making use of the IPC Green Inventory of the World Intellectual Property Organization (WIPO) to analyze four broad categories of green energy technologies including alternative energy production...

In this study, the effect of Ce3+ concentration on the polishing properties of Ce1-xLaxO2 abrasive (x = 0, 0.1, 0.2, 0.3) was investigated. The abrasives were characterized by XRD, SEM, TEM, Raman, and XPS. The polishing performance of abrasives was evaluated by AFM. All samples are CeO2 phase...

Purpose: The purpose of this paper is to enhance the forecasting performance of grey model and generate accurate prediction values of Chinese carbon emissions.Design/methodology/approach: A novel grey prediction model with multi-projection is designed. It adapts to the data characteristics,...

The paper aims to examine economic interdependence and balancing power politics, and their mixed implications for regional institution building in East Asia based on the concept of common security. By pointing out the gap between the violent conflict prediction and the stability and prosperity...