We propose a new stochastic first-order algorithm for solving sparse regression problems. In each iteration, our algorithm utilizes a stochastic oracle of the subgradient of the objective function. Our algorithm is based on a stochastic version of the estimate sequence technique introduced by...

<Para ID="Par1">We consider optimization problems with an objective function that is the sum of two convex terms: one is smooth and given by a black-box oracle, and the other is general but with a simple, known structure. We first present an accelerated proximal gradient (APG) method for problems where the...</para>

This paper is Selected for presentation at the Southern Agricultural Economics Association Annual Meeting, Atlanta, Georgia, January 31-February 3, 2009. The research is partially funded by ERS/USDA China Project and Social Science Fund of Jiangsu Province in China. The authors are grateful for...

The recent increase in Chinese house prices has led to concerns that China is vulnerable to asset price shocks. In this paper, we apply recently developed recursive unit root tests to spot the beginning and the end of potential speculative bubbles in Chinese house price cycles. Overall, we find...

To remain competitive in the present dynamic environment, ‘governance for agility’ has become a key solution. Past literature paid little attention to understanding how governance for agility, particularly in regard to the delivery of Information Technology (IT) implementation....

Enterprise Resource Planning (ERP) system in companies can be implemented to Multi National Corporation (MNC), Larger Enterprise, and Small & Medium-sized Enterprises (SMEs). In China, 99% of all companies can be categorized as SMEs. With a decade of high-speed economy development after entering...

A common problem in the empirical production analysis at the firm-level is that the initial values of capital are often missing in the data. Most empirical studies impute initial capital according to some ad hoc criteria based on a single arbitrary proxy. This paper evaluates the bias of...

Relative deprivation (RD), also known as relative poverty , an idea implicitly put forward by Adam Smith in The Wealth of Nations and formally conceptualized by Runciman (1966), refers to the discontent people feel when they compare their positions to others and realize that others in the group...

The tradition of keeping written records of gift received during household ceremonies in many countries offers researchers an underutilized means of data collection for social network analysis. This paper first summarizes unique features of the gift record data that circumvent five prevailing...

It has been widely documented that the poor spend a significant proportion of their income on gifts even at the expense of basic consumption. We test three competing explanations of this phenomenon--peer effect, status concern, and risk pooling--based on a census-type primary household survey in...