Abstract This article seeks to answer two questions: (i) what factors drive firms decide whether or not disclose the information related their greenhouse gas emissions (also called carbon information)? (ii) forces lead more information? Using data hand‐collected from annual Corporate Social Responsibility reports of China's listed companies 2008 2012, we find following: that operate in sectors high‐emission industries are likely make disclosure ( CID hereafter); within one industry , it is a...

We empirically evaluate the current 120-minute settlement window for China Securities Index 300 Stock Futures. assume that an exchange chooses optimal to maximize its profit by increasing revenue from trading volume and curtailing surveillance expenditure via designing contract specifications. Given a longer may reduce hedging effectiveness but result in cost savings, we find is located between zero forty minutes under varied unit investigation costs suggest it be more appropriate set shorter window.

Conformal prediction is a powerful framework for constructing sets with valid coverage guarantees in multi-class classification. However, existing methods often rely on single score function, which can limit their efficiency and informativeness. We propose novel approach that combines multiple functions to improve the performance of conformal predictors by identifying optimal weights minimize set size. Our theoretical analysis establishes connection between weighted subgraph classes studied...

Retracted.

Ever since a long time ago, the system of divided operation has been always existing in financial industry China. Since reform and opening-up China, switched from mixed to then back operation. The original idea is construct firewall between commercial banks securities companies avoid cross-industry transmission risks so as diminish systematic risks. However, generally speaking, favorable for improvement service efficiency assets reduction Thus, we should further perfect laws regulations...

This article introduces the origin of tongue “Hong Kong has been marginalized in last two decades”, and analyses financial service from historical point view, strategic importance national development People’s Republic China, pioneering medical education that lead world, by utilizing empirical analysis over three main body parts. We argue phenomenon “marginalized” exists nowhere, exactly on contrary, Hong Special Administrative Region is placed unprecedented political economic position...