Economic development and capability expansion in historical perspective

This paper is the text of a lecture given by the author at the Academic Conference on Charitable Services and Social Forces in History, at the Chinese University of Hong Kong, on 8 December 1999.     

Implied Lévy volatility

We study the cause of large fluctuations in prices on the London Stock Exchange. This is done at the microscopic level of individual events, where an event is the placement or cancellation of an order to buy or sell. We show that price fluctuations caused by individual market orders are essentially independent of the volume of orders. Instead, large price fluctuations are driven by liquidity fluctuations, variations in the market's ability to absorb new orders. Even for the most liquid stocks there can be substantial gaps in the order book, corresponding to a block of adjacent price levels containing no quotes. When such a gap exists next to the best price, a new order can remove the best quote, triggering a large midpoint price change. Thus, the distribution of large price changes merely reflects the distribution of gaps in the limit order book. This is a finite size effect, caused by the granularity of order flow: in a market where participants place many small orders uniformly across prices, such large price fluctuations would not happen. We show that this also explains price fluctuations on longer timescales. In addition, we present results suggesting that the risk profile varies from stock to stock, and is not universal: lightly traded stocks tend to have more extreme risks.     

股利政策告示效应的成因分析

公司的净利润主要有两个用途，一是作为股利发放给股东，二是留在公司进行再投资。股利政策就是以公司发展为目标、以股价稳定为核心、在平衡企业内外相关利益团体利益的基础上，对于净利润在提出了各种公积金后，如何在发放红利和再投资二者之间进行分配而采取的基本态度和方针政策。适当的股利政策不仅可以树立良好的公司形象，而且还能激发广大投资者对公司持续投资的热情，从而使公司因此获得长期、稳定的发展条件与机会。股利政策一般涉及股利支付率的高低、股利支付的具体形式的选择、股利支付率增长政策、股利发放率政策以及股利发放程序策划等5个方面。在非对称的信息条件下，公司发布股利政策将给投资者传递一定的信息。投资者可以从股利政策中解读到关于该公司的财务状况，发展前景等方面的信息，     

Terms of Trade and Welfare for a Developing Economy with an Imperfectly Competitive Sector

The effect of terms of trade on the welfare of a small open economy is analyzed. It exports a homogeneous good and imports some brands of a differentiated good. It also produces some brands of the differentiated good which are not traded. A terms-of-trade deterioration causes resources to move to the nontraded, import-competing sector. The economy's income rises and the price index for the differentiated good falls, resulting in higher welfare. This accords well with the experience of developing economies of East and Southeast Asia.     

柳州君武森林公园旅游开发SWOT研究

本文运用SWOT分析法对柳州君武森林公园所处的环境和形势进行深入的分析,以便充分认识、掌握、利用和发挥柳州君武森林公园的有利条件和因素,控制或化解不利因素和威胁,从而扬长避短,实现最好的旅游开发结果。     

中国省域经济综合效率分析——基于三阶段DEA模型的研究

本文运用Friedetal(2002)所提出的三阶段DEA分析法,在此基础上引入空间地理变量,修正了环境变量与随机干扰等因素的影响,对2003～2007年间我国30个省级区域经济增长效率进行了实证分析。研究发现,近几年东部地区经济继续保持高速稳定发展,西部地区和中部地区的经济也有了较好的转变,整体层面上我国经济发展的综合效率逐渐趋同。我们应着眼当前经济发展的特点,在保持东部地区经济稳定增长的同时,加大对中西部地区经济发展的投入,以解决我国区域经济发展的不平衡问题。     

马来西亚经济转型计划的实施与成效

国际经济环境的持续动荡和自身经济发展的瓶颈,促使马来西亚政府于2010年10月推出经济转型计划。2011年,随着启动计划等一系列具体措施的落实,马来西亚的经济转型计划全面展开并初见成效。可以预见,未来几年内,经济转型计划将是决定马来西亚经济走势的主导力量。