The current development has three directions : regional integration under scale economy and imperfect competition theories ; endogenetic regional integration theory ; regionalisms and multilateralism 近期的发展可以归结为三个方向：规模经济和不完全竞争理论下的区域经济一体化、内生化的区域经济一体化理论及区域主义与多边主义。
It is a great progress to relax the assumption to imperfect competition while the static analyst in it is a drawback . thus comprising both scientific factors and limitations , the theory can only be partly applied to the practice 前提的放松是理论的进步，而静态分析本身是个缺陷，因此理论的科学性与局限性集于一身，在实践中，只能有限运用。
The fourth one further analyze the dynamic comparative advantages on the basic of imperfect competition . technology , factors movement and the policy orientation of the government a re all conducive to the creation of comparative advantages 第四章进入到不完全竞争市场下的动态分析，提出技术、要素流动和政府的政策取向能够帮助一国创建比较优势。
While today ' s world trade characteristics cannot be clearly explained by traditional trade policy , the strategic trade policy theory based on scale economies and imperfect competition is still under broad dispute 传统的国际贸易理论已不能解释当今世界的贸易特征，而以规模经济和不完全竞争为前提的战略性贸易政策理论发展至今，也一直受到广泛的争议。
If the evaluators had consulted the chapters on imperfect competition in any number of economics textbooks , they might have thrown out the application as violating the standards that a patent should be both new and nonobvious ( inventive ) 如果审查员事先查过任何一本经济学教科书里有关不完全竞争的章节，他们大概就会把申请驳回，因为这项申请违反专利要件中，新颖性与非显而易见两项要素。
New trade theory put the comparative advantages in a more practical and rational place . either by analyzing on the basis of imperfect competition , or by adding the factor of time to produce dynamic theory , or both , the comparative advantage theory enhances its capacity of exponent 新的贸易理论以更新、更现实的角度考察比较优势，或是以不完全竞争市场为分析基础，或是加入时间因素进行理论动态化，或两者皆有，增强了理论的解释力。
In 1980s , along with the development of the new theory of international trade , the strategic trade policy appeared in american . with the assumptions of scale economies and imperfect competition , the strategic trade policy uses industrial organization theory to analyze trade problem 20世纪80年代，随着新贸易理论的发展，在美国出现了一种以规模经济和不完全竞争为前提，以产业组织理论和市场结构理论为研究工具的战略性贸易政策理论。
With the rising of new trade theory , strategic trade policy was put forward as the extension of the theory applied in the area of trade policy . because it is based on the more real practice of imperfect competition and increasing returns to scale , strategic trade policy seems more convincing in directing chinese constitution of trade policy than traditional trade theory does 随着新贸易理论的兴起，战略性贸易政策被提出，作为该理论在贸易政策领域的拓展，战略性贸易政策是建立在更为符合实际的不完全竞争和规模报酬递增条件下的，因而对于指导我国贸易政策的制定较之传统贸易理论更具有现实依据。
