论《全明散曲》所收散曲的体式及其特征

谢伯阳先生主编的<全明散曲>,展示了明代散曲的全貌,是目前收录明代散曲最全的集子.然而<全明散曲>中收录的明代散曲体式却鲜为人知,这里分三部分叙述:名称与分类;宫调与曲牌;用韵与语词,旨在揭示明代散曲体式的概貌.     

我国会计行业如何面对WTO的挑战

随着世界贸易组织 (WTO)的大门向我国打开 ,一个重大的现实课题赫然摆在我国会计理论界和实务界的面前。加入WTO会给我国会计带来哪些挑战 ?我们将如何应付 ?本文就此问题提出观点。     

成功实施六西格玛的若干因素探析

六西格玛是追求完美的管理哲学,它在应用中的首要问题是对其正确的理解,其次是甄别影响六西格玛成功实施的主要因素,文章分析了实施过程中常见的问题及原因。     

Intraday Value at Risk (IVaR) using tick-by-tick data with application to the Toronto Stock Exchange

This paper investigates the use of tick-by-tick data for intraday market risk measurement. We propose a method to compute an Intraday Value at Risk based on irregularly spaced high-frequency data and an intraday Monte Carlo simulation. A log-ACD–ARMA–EGARCH model is used to specify the joint density of the marked point process of durations and high-frequency returns. We apply our methodology to transaction data for three stocks actively traded on the Toronto Stock Exchange. Compared to traditional techniques applied to intraday data, our methodology has two main advantages. First, our risk measure has a higher informational content as it takes into account all observations. On the total risk measure, our method allows for distinguishing the effect of random trade durations from the effect of random returns, and for analyzing the interaction between these factors. Thus, we find that the information contained in the time between transactions is relevant to risk analysis, which is consistent with predictions from asymmetric-information models in the market microstructure literature. Second, once the model has been estimated, the IVaR can be computed by any trader for any time horizon based on the same information and with no need of sampling the data and estimating the model again when the horizon changes. Backtesting results show that our approach constitutes reliable means of measuring intraday risk for traders who are very active in the market.     

政府在耕地减少中的责任和在耕地保护中的作为

集成曲线估计模型和灰色数列模型,研究耕地总量在1983-2006年间的变化过程以及在2010～2020年间的变化态势,分析政府行为在耕地总量减少中的责任和在保护耕地中的作为.研究结果:2020年耕地总量可能低于新的耕地红线,政府对耕地减少负有不可推卸的责任.     

再造西部地区投资软环境

资本积累是推进西部大开发的重要突破口,而以西部经济实力的现状无法依靠自身积累来满足资金要求,因此,引进外部资金就格外重要。投资环境已经成为影响西部地区引进外部资金至关重要的因素,而在构成投资环境的投资硬环境和投资软环境中,投资软环境又是关键所在,我们旨在对影响西部地区投资软环境的文化、人才科技与教育、体制、政策和法律五个方面的分析基础上,提出再造西部投资软环境的相关建议。