Farm-based modelling of the EU sugar reform: impact on Belgian sugar beet suppliers

A mathematical programming model, calibrated on individual farmdata, is used to analyse the reform of the common market organisation(CMO) in the sugar sector of the European Union. The model includesa precautionary farm supply function for out-of-quota sugarbeet that is estimated as part of a simultaneous system of first-orderconditions. Simulation results from a sample of Belgian sugarbeet farms show that the sugar CMO reform induces differentsupply and income effects across farms depending on their shareof out-of-quota sugar beet relative to their total beet supplyand their quota rent. A further cut in the minimum price ofsugar beet initiates structural change in the farm sector.     

旅游区环境影响评价与保护

旅游资源与环境是旅游发展的前提和基本条件,旅游经济发展与对环境造成的负面影响是并存的;根据目前旅游发展过热,＂环评＂工作严重滞后的现实,指出旅游环境影响评价势在必行;介绍了旅游区环境影响评价的内容、方法及评价标准;对旅游资源保护和生态环境建设提出了建议;强调发展旅游循环经济则是取得旅游经济与环境保护＂双赢＂的有效途径。     

海产贝类的市场调查

通过对海产贝类品种、价格、产地和消费意愿的市场调查,讨论了海产贝类的市场前景、食品安全的问题及发展贝类养殖的现实意义。     

International trade in a differentiated good: Trade elasticities in the world rice market

In many previous rice trade models, the commodity has been regarded as a homogeneous product. However, homogeneity is not an appropriate assumption, given the various types of rice that are traded and consumed. Parameters estimated from these models, therefore, do not reflect the real world market for rice and, hence, may mislead decision makers who use the results for policy evaluation purposes. This study uses an Armington approach to model the world rice trade as a differential good market and to derive trade elasticity parameters.     

野生动物贸易与野生动物保护

野生动物贸易与野生动物保护之间的冲突是显而易见的,但野生动物贸易如果有效利用也会成为野生动物保护的工具。     

基于可持续发展的海洋资源保护与开发

随着我国海洋科学技术平的日益增强,海洋经济已经成为我国国民经济发展的重要组成部分。海洋资源开发在推动国民经济发展的同时,海洋资源自身的可持续性也承受着前所未有的压力。论文论述了我国目前海洋资源开发与保护的现状,从海洋观念、法律法规及海洋管理三个方面分析了存在海洋资源开发过度现象的原因,并从海洋资源保护与开发、海域使用管理、完善相关法律法规、海洋资源监测及海洋环境影响评价等方面,提出实现海洋资源可持续开发建议。     

世界鲟鱼资源及养殖前景

作者于１９９７年７月７日至１２日应邀参加了意大利米兰地区召开的第三届国际鲟鱼会议。本文报道了该次会议简况,同时,从鲟鱼资源、鲟鱼人工繁殖、鱼种培育、成鱼养殖技术等方面,全面分析了当前世界鲟鱼养殖现状及发展前景     

从市场角度论成本法评估

在实际工作中,对同一宗房地产一般要采用两种不同的评估方法进行评估,即市场比较法和成本法。但在实际评估过程中,两种评估方法得出的评估结果是不同的,有时差异还较大。两种评估结果为什么不一样?笔者认为原因之一是运用成本分析法进行房地产评估缺少了市场的因素。1.成本法的评估结果低于房地产市场价格。一般出现在商业因素比较大的区域,如商业繁华地段的沿街密集商业房。该种房地产特点就是容积率较大,土地利用率较好,市场交易信息很多。房地产的价格主要由市场因素形成的,房地产的成本对房地产的价格影响显得不重要。下面就成本法的公…     

The impact of increasing non-agricultural market access on EU demand for imported fish: implications for Lake Victoria chilled fillet exports

Import demand functions for origin-specific chilled fish filletsto the EU using a Rotterdam-type production model are estimated.Results are used to project the impact of the EU expanding marketaccess to non-African countries. The preference erosion argumentsuggests that the lower tariffs will erode the competitive positionof African countries; however, when the total impact of pricesis considered, expanding preferential access may result in increasedimports from African countries. If tariffs are reduced to zero,the total EU imports are projected to increase by 4.1 per centresulting in a 2.2 per cent increase in chilled fillet importsfrom Lake Victoria.     

The growth and performance of the Northern Ireland housing market

Summary

The complexity of the housing process is discussed in realtion to home ownership levels, the rate of new residential development and the performance of the private market in Northern Ireland where public sector led initiatives have been instrumental in boosting owner occupation levels. The availability of a co‐ownership route to house purchase is one key aspect of housing policy in the province. This has had beneficial effects most notably through the encouragement of a high level of new residential development, however there are also negative impacts of over saturation and market distortion.     

长江中游湿地保护与利用研究

长江中游湖泊湿地是我国典型的湿地类型,具有极高的经济价值和环境、生态功能,由于自然和人为的原因,湿地面临严重的生态环境问题。长江中游湿地的保护要坚持保护与利用兼顾、保护为先的原则,重点加大洪湖、梁子湖、龙感湖等重要湖泊湿地的保护,建立洪湖、龙感湖国家级湿地自然保护区,建立健全湿地保护的法律法规,实施湿地的统一规划管理等。     

Translocality on the real estate market

Translocality is a new phenomenon, recognized in reference to the migration of populations, city-planning and globalization. In our article, we attempt to introduce a new meaning of this term, referring it to the real estate market. Within the work, we research the phenomenon of real estate market subject translocality for all regions of Poland, design a coefficient for measuring translocality and, noting a similarity of the two phenomenon over time, indicate the practical significance of translocality in relation to the speculative price bubble.