In this paper, we propose a novel method for sparse logistic regression with non-convex regularization Lp (p 1). Based on smooth approximation, we develop several fast algorithms for learning the classifier that is applicable to high dimensional dataset such as gene expression. To the best of...

We theoretically investigate the thermopower of silicene systems in an external electric field perpendicular to the silicene sheet. In the absence of the field, we estimate that the thermopower of pure silicene is of order ∼80 μV/K. When a finite field is applied, a comparatively big band gap...

We consider energy (heat) transport in quantum systems, and establish a relationship between energy spread and energy current-current correlation function within linear response theory. The energy current-current correlation is related to thermal conductivity by the Green-Kubo formula, and thus...

In this paper, given recent theoretical developments that inflation can exhibit long memory properties due to the output growth process, we propose a new class of bivariate processes to simultaneously investigate the dual long memory properties in the mean and the conditional variance of...

We study CEO compensation in the banking industry by considering banks’ unique claim structure in the presence of two types of agency problems: the standard managerial agency problem and the risk-shifting problem between shareholders and debtholders. We empirically test two hypotheses derived...

Using a unique dataset of complete bid information for every IPO auction in Taiwan during 1995--2000, we examine the behaviors and returns of two groups--institutional and retail investors--in a setting in which underwriters do not have pricing or allocation discretion. We find that the bids of...

We examine the effects of bidding experience on two groups of investors – individuals and institutions – in terms of their decisions to bid again and their bidding returns. Bidding histories are tracked for all 31,376 individual investors and 1,232 institutional investors across all 84 IPO...

This article examines the incentive features of top-management compensation in the banking industry. Economic theory suggests that the compensation structures for bank management should have low pay-performance sensitivity because of the high leverage of banks and the fact that banks are...

We examine the long-run performance of the tracking stocks, the parent stocks, and the combined companies following the issue of tracking stock, as well as the performance of the firms prior to the tracking stock issue. Our results indicate that the long-run performance is not significantly...