Effects of export product diversification on quality upgrading: an empirical study

This paper empirically examines the effects of export product diversification on overall export quality in a panel data set of 115 countries from 1970 to 2010. It uses the data sets of the overall export quality and three export diversification measures of the International Monetary Fund: the extensive margin (variation in the number of new products exported), the intensive margin (variation in export values among existing exports), and the overall (Theil) index. It finds that export quality has only been increasing with a higher variation in export values among existing exports in low- and lower-middle-income countries. It also observes that export quality has been increasing with both a higher variation in export values among existing exports and new products exported in upper-middle- and high-income countries. The results are robust to the changing measures of controls in the benchmark model, the inclusion of many other controls; i.e. various measures of globalization, country size, factor endowments, macroeconomic stance, etc., and the exclusion of outliers.     

出口、对外直接投资与企业的异质性研究

出口和对外直接投资是一国企业进入国外市场的两种重要模式，本文通过建立一个简单的理论模型来分析企业对这两种进入模式的选择问题。本文将企业异质性引入模型分析，同时将企业的R＆D活动作为内生变量来进行研究。在理论分析的基础上，本文结合中国出口和对外直接投资发展的实际情况提出了相关政策建议。     

Research notes and communications corporate restructuring and strategic change: The effect on diversification strategy and R & D intensity

In the 1980s a number of large corporations restructured their diversified businesses through divestitures. It is hypothesized that restructuring activity focused on firms at intermediate levels of diversification (e.g., related-linked) which have a mixture of related and unrelated business units. Results confirm this hypothesis which explains that such mixed corporate strategies create organizational and control inefficiencies in managing both related and unrelated types of business units. Restructured firms were also found to move towards two types of different internal capital markets (related and unrelated). Most restructuring firms moved toward lower levels of diversification (e.g., related-constrained), although some moved toward higher levels of diversification (e.g., unrelated business). Also, this study finds restructuring firms that changed their corporate strategy by reducing diversified scope increased their R&D intensity. Firms that restructured and increased their diversified scope decreased R&D intensity. This result suggested a partial substitution between diversification and R&D activity.     

新兴市场国家的汇率波动与出口:一个经验分析

现有的中外文献已经对发达国家间的汇率波动与贸易之间的关系做了很多相关分析，但就汇率波动与贸易之间的关系没有取得一致性的结论。本文利用协整分析和误差修正模型，针对新兴市场国家的汇率波动与出口的关系进行了经验分析，结论是：汇率波动会在一定程度上抑制新兴市场国家的出口，但对某些新兴市场国家出口的影响并不明显，其影响程度随一国经济发展水平、经济规模和开放度的差异而有所区别。     

激励性规制的强度分析

网络型产业中存在的信息不对称使规制契约的存在成为必然。现实经济活动中之所以要设计和采用不同强度的激励性规制,主要是由于没有哪种规制机制能够解决所有问题。在理论综述的基础上,借鉴前人的研究,分析了网络型产业的激励性规制模型中的激励强度与激励绩效的关系,并指出其在实践中的应用以及对我国的借鉴。     

建立中国-东盟自由贸易区对中国农产品出口的影响及其对策

针对中国与东盟农产品贸易的现状,采用显性比较优势分析中国农产品的优势,以及CAFTA的建立对中国农产品出口的影响,就如何扩大中国农产品出口提出了对策和建议。     

开放条件下的贵州工业结构升级

工业化过程不仅涵盖了工业产值不断提高并最终在国民经济中占主导地位,还应该实现工业结构的不断升级.1997年至2004年期间,贵州工业结构在轻重工业比例、结构高度化和生产要素密集度等方面有所升级但仍存在一些偏差.在未来开放条件下贵州促进工业结构升级应注意避免结构低度化,创造和提供合适的市场空间,正确处理技术引进与自主开发的关系,发挥比较优势以及规范政府职能等问题.     

数字经济对我国碳排放的影响研究

基于2013-2020年的30个省份数据构建面板数据模型,从碳排放总量和碳排放强度两个视角研究数字经济发展对区域碳排放的影响。研究发现：数字经济的发展有效地降低了人均碳排放量、碳排放增量与碳排放增速,数字经济与碳排放强度之间存在倒“U”形关系,数字经济与碳排放强度、边际碳排放强度的关系呈现区域性特征,在省域层面数字经济对边际碳排放强度的影响不存在明显的空间效应,数字经济对碳排放增长率的影响存在基于产业结构优化、人口集聚、城镇化的遮掩效应。     

基于哈肯模型的高技术产业化过程机制研究

运用自组织理论和方法,在哈肯模型的基础上建立了高技术产业化过程的演化方程,并以北京、天津、上海、河北等29个省市为样本进行了定量化的实证研究。结果表明,研究开发投入强度是高技术产业化过程中的序参量,从而得出要依靠研究开发投入与高科技成果转化的协同作用促进高技术产业快速发展这一结论。     

中国保险业的合谋倾向强度:一个理论分析框架

从结构、需求与信息三个维度构建了一个产业合谋倾向强度理论分析框架，并用该框架分析了我国保险业的合谋强度。研究认为，我国保险业合谋强度比较大。