中国地区间研发资源错配测算与影响因素分析

随着中国的研发投入总量进入世界第一梯队,研发投入(资源)的配置状况成为决定研发产出效率的关键因素之一。本文基于一个包含研发资源价格扭曲的多部门竞争均衡模型,以2001—2016年各省份规模以上工业企业数据为样本,对中国地区间研发资源错配情况及其影响因素进行全面考察。研究发现:(1)各省份之间的研发劳动错配高于研发资本错配,多数省份倾向于过度配置研发资源,省份之间研发资源配置效率总体上呈逐步改善趋势,纠正错配可以使研发产出提升约16%;(2)东部各省份研发资源配置相对较为合理,但研发劳动配置略有不足,中部、西部和东北各省均存在不同程度的研发资源过度配置现象,东部和西部的研发资源配置效率一直在改善,东北和中部则没有表现出持续的改进态势;(3)市场发育程度、偏向性政策扶持、地区创新环境是研发资源错配的主要影响因素,在研发资源过度配置地区,这些因素的作用更为显著。本文的启示是,在当前全面实施创新驱动发展战略的大背景下,政府相关部门在积极引导全社会加大研发投入力度的同时,还应以市场为导向,进一步优化不同地区间的研发资源配置,实现研发效率的提升和经济的高质量发展。     

Rybczynski's Theorem in the Heckscher-Ohlin World — Anything Goes

We demonstrate that Rybczynski's classic comparative statics can be reversed in a Heckscher-Ohlin world when preferences in each country favor the exported commodity. This taste bias has empirical support. An increase in the endowment of a factor of production can lead to an absolute curtailment in the production of the commodity using that factor intensively, and an absolute expansion of the commodity using relatively little of the same factor. This outcome - which we call “Reverse Rybczynski” - implies immiserizing factor growth. We present a simple analytical example that delivers this result with unique pre- and post-growth equilibria. In this example, production occurs within the cone of diversification, such that factor price equalization holds. We also provide general conditions that determine the sign of Rybczynski's comparative statics.     

Testing for the Presence of Financial Constraints in US Agricultural Cooperatives: An Investment Behaviour Approach

This study examines the presence of financial constraints in US agricultural cooperatives. We test the cooperative capital constraint hypothesis with a panel data econometric analysis of agricultural cooperatives’ investment behaviour. Regression results suggest that agricultural cooperatives’ capital expenditures are significantly affected by the availability of internal funds. Results also indicate that the sensitivity of investment to cash flow is correlated with cooperative structural characteristics.     

But are they Meritorious? Genetic Productivity Gains under Plant Intellectual Property Rights

The objective of this paper is to evaluate the effect of Plant Variety Protection (PVP) on the productive merit/yield increases of US seed varieties. As an example, we use wheat varieties, which are and have been available as both protected and unprotected under PVP from both the public and private sectors. We find evidence that PVP has contributed to the genetic improvement of wheat, using varietal trial data from Washington State. As the private open‐pollinated varieties exist only because of PVP and are higher yielding, these results indicate a clear public benefit from PVP.