知识产权给予知识财产的所有人有期限的财产独占。时代发展与技术进步的推动，在作为经济增长内生变量的知识序列中，版权正发挥越来越重要作用，并逐渐超脱出普通文艺作品著作权的范畴，演变为涵盖著作权和工业版权的大的版权领域。经济全球化、区域经济一体化和对外直接投资日益深化的背景下，版权业的经济增长贡献日益突出，版权保护与经济发展间的相互关系越来越引起研究者重视。通过对版权的适度保护，使得知识财产在个人利益与社会利益之间、前后知识创新者之间、知识创新与模仿者之间、经济部门之间、国与国之间实现经济福利增进与社会经济增长。本文以版权相关主体的福利均衡为研究起点，从内生经济增长、知识积累、技术扩散、创新与模仿等研究视角，运用成本收益分析、数理分析、计量经济分析等手段，采取定性和定量研究相结合方法，针对版权保护的福利效应、版权保护与经济增长、版权保护与对外直接投资三个层面，较为深入地分析了版权保护的经济效应机制。通过构建水平与垂直差异模型、内生多部门经济增长模型等研究框架，分析了版权保护作用于经济增长的内在路径，求解了版权保护与经济增长鞍点稳定的均衡值，检验了音乐版权行业、计算机与软件行业版权保护对经济增长、对外直接投资的影响。最后通过分析数字技术环境给版权保护带来的挑战，针对我国版权保护存在的问题，结合我国版权业的发展，提出了相关对策建议。版权保护的历史演进与研究概述部分，作为问题研究的脉络展现（在本文结构中，相关层面的理论研究综述分别放在了本文的三、四、五章），介绍了版权的概念、特征及版权法律体系的历史演进，从交易成本、知识流动与扩散、版权经济福利与价值、版权保护与经济增长、版权保护的经济效应机制等视角概述了版权保护经济效应研究的主要脉络，提出了本文的研究思路。版权保护的社会福利增进，源于作为社会经济发展重要变量的知识的创新、流动与扩散。实施保护的边际收益与边际成本趋同，社会福利效应才能最大化显现。版权业的市场结构不同、不同版权产品面临的社会消费需求各异，从经济效率的角度，其版权保护水平应分别独立确定，社会的最优版权保护水平也不应固定不变。版权保护对社会福利的影响，作用于同时期版权主体之间，也在早期创新者赋予后续创新者知识溢出的代际效应中体现。创新者与承继者间最大化的代际福利水平，可依版权产品的水平差异与垂直差异度之别，根据版权保护选择的识别因子--版权产品的市场排名或产品的质量创新系数确定。版权保护与经济增长的效应研究部分，本文创新性地将研究视角定位于两个垄断竞争又相互关联的上下游版权经济部门，通过构建内生两部门经济增长模型，分析版权产品市场利润率和劳动力市场均衡工资率，得出版权保护从两个方向影响经济增长：版权保护降低了最终版权产品的产出和初始时刻的消费水平，但鼓励增加消费品和中间产品的种类，从而增加了消费者消费选择的效用，提高了经济产出与社会福利。通过分析两部门的最优版权保护区域，首次提出并分析了版权保护在两个部门间存在的跨部门效应。并用计算机行业和软件行业数据进行了分析验证。在内生两部门经济模型基础上，本文扩展了基于经验积累的内生经济增长研究范式，求得了版权保护与经济增长鞍点稳定的均衡解。提出相关参数变化下，版权保护与经济均衡增长率之间存有多种可能，沿此均衡路径的变化率是技术模仿率的倒U型函数。利用中国1996年--2013年的时间序列数据，验证了版权保护对经济增长影响的门槛效应，测度了版权保护对经济增长的贡献率。开放条件下，外商直接投资带来的技术扩散促进了东道国的经济发展，予以匹配的版权保护水平应起到促进福利均衡与经济增长的作用。通过建立知识产品效用函数，本文分析了技术创新者与模仿者的收益均衡和行为决策，认为过强的版权保护会影响外商直接投资与跨国技术转移，东道国的技术创新率和模仿率会随着本国版权保护的增强而降低。通过一个基于版权保护与FDI的VAR模型，引入自主创新变量，探讨了版权保护、自主创新和外商直接投资之间的关系，利用中国1993年-2013年的宏观数据进行实证检验。计量结果显示，控制自主创新变量后，版权保护对外商直接投资的影响，短期内从正向逆转为负向，但这些影响都不持久。东道国的技术模仿是技术创新的重要渠道，但长期看本国自身对研发的投入、创新才是促进经济发展的必由之路。结合上述分析，本文最后部分针对完善版权保护促进经济发展提出了对策建议。改革开放以来，中国建立起一套基本适应经济发展要求、符合国际版权规则的较完整的版权保护体系，但版权的执法环境、基础建设等层面仍存有各种问题和缺陷。经济变量与新的市场要素的冲击不断动摇既有的市场利益均衡，数字信息技术的飞速发展，使得这种挑战更趋严峻。版权保护体系应与产业发展和技术进步同步演进、适时调整。应积极实现版权保护国际标准的统一，促进版权中介组织发展、完善版权集体管理制度，允许版权人采取有效技术措施应对保护缺位下的利益侵蚀，构建司法与行政保护为主、版权集体管理与版权中介组织为依托、版权市场调节和版权人技术保护措施相结合的版权保护体系，促进并维护经济的持续稳定发展。

Being the property rights derived from human rights, copyright belongs to intellectual property rights, and give the monopoly power to the owner of intellectual property a period time of limit. And as a kind of knowledge which contributed to economic growthendogenously,copyright is now beyond the ordinary category of literary works limitation, evolved into a big field covering the literary works and industrial copyright as the society development and technological progress. Through moderate protection of copyright, Intellectual property can promote the mutual welfare and social economy growth between the private domain and public domain, front and back innovators, innovators and imitators, economy sectors and countries. In the deepening background of global economic integration and foreigndirect investment, the relationship between copyright protection and economic development is more and more attract the attention of the researchers. From the views of endogenous economic growth, accumulation of knowledge, technology diffusion, imitation and innovation, using the means of cost benefit analysis, game theory analysis, mathematical analysis and econometric analysis,this paper analyzed the economic effect of copyright protection from the three levels of relationship between copyright and welfare effect, economic growth, foreign direct investment. Through building the modelsof horizontal and vertical difference,multi-sector, endogenous economic growth,copyright motion and VAR,analyzed the internal mechanism which copyright protection promote and restrain economic growth. Based on mathematical analysis, get the Nash equilibrium of copyright protection and economic growth. Empirically test the influence of economic growth, foreign direct investment with copyright protection in the music industry, computer and software industry, and at last, based on the problems of copyright protection in our country, puts forward the countermeasures and suggestions through analysis of the challenge of digital environment to the copyright system. The second chapter is a context of the questions and researches. It introduced the concept and characteristics of copyright and the historical evolution of copyright law systems. Summarized the main research methods at home and abroad of economic effect of copyright protection from the views of transaction costs, knowledge flow and diffusion, copyright and economic value, copyright protection and economic growth, the economic effect mechanism of copyright protection and bring out the main analysis framework and ideas of this paper, that is：On the basis of the cumulative endogenous growth model,Introduced variables such as technology innovation, through the analysis ofchanges of economic welfare and equilibriums between the intergenerational innovators, innovators and imitators,explore the appropriate level of copyright protection under different economic variables, so as to promote balanced development of the social welfare and the stability of the economic growth.Finally select the relevant sectors of the copyright industry data and verify the related model conclusion.The third chapter analyzed the mechanism of copyright welfare effect. When marginal benefit equals marginal cost, copyright protection obtain the optimal social welfare effect.The influence that copyright protection on social welfare is reflected in the spillover effects that early innovators to later innovators, thus the copyright protection level should be determined independently from the perspective of economic efficiency. The optimal level of copyright protection should not be fixed.The term extension of copyright does not bring the corresponding growth of social welfare, and the trend of term extension of copyright cannot be proved to be a correct economic choice. Through a sharing cost model of a fixed size groups, this paper analyzed the welfare equilibrium of copyright products between monopoly and consumers under limit price. Concluded the benefit balance will be broken when the sharing cost decreasing with technological progress, copyright protection level should also be changed accordingly, and so does the original and subsequent innovators.Using the difference models of level and vertical, pick the welfare equilibrium of the music copyright market, this paper concluded that protection can be made based on the ranking effect in the level market, and in vertical market, when the subsequent innovator's quality innovation coefficient beyond the equilibrium, the market should be protected.The fourth chapter build an endogenous analysis model of two sectors.Through analysis of theprofit margins and wage rates in two monopoly competition sectors of upstream and downstream which have fixed elasticity of substitution, concluded that the copyright protection level influence the economic growth from two directions.Through analysis of the optimal copyright area of two sectors, concluded that exist the inter-departmental effect, copyright protection in one sector can impact the other's innovation rate. When two sector's innovation rate being positive,the copyright protection made on downstream enterprise can reduce the innovation rate of upstream, this paper implement analysis and test with the data of computer industry and software industry at last. Another innovation of this chapter is set up a copyright economy model based on accumulation of experience and imitation,analyzed promote and inhibition mechanism of copyright protection to economic growth, obtained the saddle point stable equilibrium solution which copyright protection and economic growth.concluded the inverted u-shaped function which the change rate along the equilibrium path with the imitation rate of technology. Finallyverified the threshold effect which copyright protection to the economic growth using the china's time series data from 1996 to 2013, concluded that when the GDP per capita over RMB32320,the intensity increase of copyright protection is conducive to economic growth. Finally, this paper measured the contribution rate of copyright protection on economic growth using the data of china's electronic information industry.The fifth chapter explored the relationship of copyright protection, technology diffusion and FDI. Proper level of copyright protection can promote and influenced the nation's welfare equilibrium and economic growth. Through an utility function of knowledge product, this paper analyzed benefits equilibrium within innovators and imitators.Obtained thatexceeded level of copyright protection changed transfer of international technology, reduced the FDI, the input nation's rate of technological innovation and imitation will decrease with the increase of the copyright protection.This chapter build a VAR model based on copyright protection and FDI, introduced the independent innovation variable, explored and verified the relationship between copyright protection,independent innovation and FDI using the china's data of 1993-2013,and gave metrological verificationthrough impulse response function and variance decomposition. Argued that the imitation of technology in developing countries is one of the important channels for technology innovation, but its own investment in research and development is the necessary way of independent innovation from the long run. The result of metrological verification showed that the influence of copyright protection to FDI will produce positive in the short term when innovation being controlled as independent variables, but it will quickly become a negative influence, and these effects are not lasting. Copyright protection should maintain dynamic benefit equilibrium within the technology exporter's monopoly innovation and importer's imitation. The last chapter put forward some countermeasures and suggestions of copyright protection and economic development. China's copyright protection system has established since the reform age but also exist problems. Economic variables are keep changing, the old balance must be broken and result in a new equilibrium under the impact of new market factors. The development of digital technology brings challenge to copyright protection, copyright law system should keep pace with the economic development, technological progress and evolution accordingly, our country has set up a relatively complete system of copyright protection which adapt to the requirements of economic development, conform to the international copyright rules and own national conditions. But copyright law enforcement environment, infrastructure, law enforcement agencies and other aspects still have all sorts of problems and defects, should reform actively to ensure the positive promoting effect of copyright on economic growth. The copyright holder should be allowed to take effective technical measures, new digital copyright protection legislation should break through limitations, and the unification of international copyright protection standard should be realized,build an balanced integrate digital copyright protection system combined with copyright law, the copyright administrative management, market regulation and the technical protection measures,and finally obtained benefit equilibrium and stable development of social economy alone with knowledge innovation and diffusion.