The solvency issue of life insurance companies has become more important in recent years as business risks turn increasingly greater. This study examines the relationship among investing risk, underwriting risk, and the capital ratio during the post risk-based capital regulation period of...

Using the stochastic frontier analysis (SFA) model, we estimate total-factor energy efficiency (TFEE) scores for 47 regions across Japan during 1996–2008. We extend the cross-sectional SFA model proposed by Zhou et al. (Applied Energy, 2012) to panel data models and add environmental...

With uncertain scope of patent protection and imperfect enforcement, the effective strength of patent protection is determined by the legal system. We analyze how the legal system affects the incentives of firms to innovate, taking into account possibilities of strategic licensing and litigation...

This research analyzes the non-cooperative and cooperative strategies with respect to manufacturer and retailer coupons. In a model with one manufacturer selling its product to one retailer, it is found that the retailer can achieve third-degree price discrimination equilibrium in retail markets...

This article computes the energy productivity changes of regions in Japan using total-factor frameworks based on data envelopment analysis (DEA). Since the traditional DEA-Malmquist index cannot analyze changes in single-factor productivity changes under the total-factor framework, we apply a...

"This study uses a stochastic frontier approach to investigate the relationship between six governance indicators and agricultural efficiency. We find that improvements in rule of law, control of corruption and government effectiveness enhance agricultural productivity significantly if each...