Legalise Insider Trading?

'Insider Trading' has been widely condemned by the press and politicians as immoral and damaging both to investors and to the reputation of the City of London. S. Hugh High, of Massey University in New Zealand, rebuts calls for tightening the law against insider trading; indeed, he argues, existing laws are both unenforceable and may trample on basic political liberties.     

P3和P4码的相位分布规律及其基本相位集

木文研究了长度N=2~m的P_3和P_4码的相位分布规律及其基本相位集。解决如何将移相型离散调制器用于Lewis码的一系列工程设计问题。     

航天飞机自动进场着陆引导系统

本文通过对航天机自动进场着陆过程特点和着陆引导系统的介绍,认为采用新一代标准微波着陆系统(MLS)作为航天飞机自动进场着陆的传感器是最佳选择.     

上海对外贸易四十年的回顾与展望

<正> 一、上海对外贸易四十年概况上海对外贸易经过四十年的发展,取得了显著的成就,主要表现在:1.进出口贸易规模处于全国前列上海在1950～1978年对外贸易规模在全国处于领先地位,而且增长速度也快于全国水平。如进出口总额由1.2亿美元增到30.2亿美元,年均增长12.2％(同期全国年均增长10.9％);其中出口额由1.04亿美元增到28.9亿美元,年均增长12.6％(全国为10.8％)。1978～1988年虽然由于主客观原因,后期外贸规模退居全国第二位(现被广东超过),发展速度也低于全国水平(如进出口总     

Liberalization and agricultural marketing : Recent causes and effects in third world economies

From merely being the dream of some economists a few years ago, the liberalization of national marketing systems has suddenly taken a tangible form on a worldwide scale. Why have governments, hitherto clinging to state participation and controls, especially in their agricultural and currency trading systems, changed their policies so swiftly? Are market structures, entrepreneurial and private-sector financing potentials capable of filling the gaps? Will the liberalization move lead of the envisaged competitive market and price mechanism with its resource- mobilizing effects, or will this move, lacking efficient implementation, get stuck somewhere in-between, inviting resurrection of interventionist policies? This article provides both evidence and analysis on these questions, in an introductory assessment of the dynamic process of radical policy changes faced by the food and agricultural marketing systems in most developing countries today.