Photonic Crystal Lasers

We compare photonic crystal lasers with other microcavities for future switching and spectroscopy systems. High speed and efficiency along with massive lithographic integration makes these lasers particularly interesting for optical switching and signal processing

Does CEO duality worsen or fosters audit quality: evidence from Chinese firms?

The objective of this study is to examine the role of CEO duality in audit quality of Chinese firms. To address the effect of CEO duality, this study considered four characteristics of CEO duality; corporate audit culture, audit committee independence, decision making through enormous power and single leadership. The indirect effect of audit committee decision is considered between CEO duality and audit quality. A questionnaire survey is carried out to collect primary data. A questionnaire was designed to collect data from Chinese firms. Respondents of the study were the CEO’s and directors of Chinese firms; therefore, questionnaires were distributed among them by using online survey. 135 valid questionnaires were used in data analyses which is carried out by using Partial Least Square (PLS)-Structural Equation Modeling (SEM). Results of the study highlighted that; CEO duality has both positive and negative effect on audit quality. Due to the single leadership style and supportive corporate audit culture, the audit quality may be improved. However, CEO duality influences negatively on audit committee independence which has negative effect on audit committee decisions. Similarly, CEO duality allows to enjoy enormous power which may affect negatively on the decision making. Thus, decision-making through enormous power has negative effect on audit committee decisions. Finally, while making the strategies to enhance audit quality, the practitioners can consider the important points highlighted by the current study to promote audit quality