我国县域经济可持续发展问题与对策探析

县域经济已经成为我国国民经济的重要组成部分。目前我国县域经济存在发展不平衡、产业层次和劳动力素质低下、自然资源浪费、生态环境恶化、产业要素缺乏、国家投入不合理等问题。我们应该制定县域经济的发展规划,加强对县域经济的分类指导;积极推进农业产业化,切实提高农民收入;提高劳动力素质;节约使用自然资源,保护生态环境;积极推进城镇化,促进城乡协调发展。     

Riskiness of Real Estate Development: A Perspective from Urban Economics and Option Value Theory

In this article, we define a new construct for urban economic and investment analysis, which revisits the conventional wisdom that investment in real estate development is riskier than investment in stabilized property assets. This new construct, referred as a “development asset value index” (DAVI), is a value index for newly developed properties (only) in a given geographical property market. It tracks longitudinal changes in the highest and best use (HBU) value of locations, and it reveals developer and landowner behavior taking advantage of the optionality inherent in land ownership. In particular, the DAVI reflects developers' use of flexibility in the exercise of the call option to (re)develop the property to any legal use and density. We empirically estimate a DAVI for commercial property (i.e., central locations) and compare it with a corresponding traditional transaction‐price‐based property asset price index (PAPI) corrected for depreciation. We believe that the difference primarily reflects the realized value of flexibility in land development. We find that the DAVIs display greater value growth and are smoother over time and less cyclical than their corresponding PAPIs for the same locations. This suggests that developers successfully use flexibility, and that development may be riskier than stabilized property investment due primarily only to leverage effects (construction costs). Practical implications are also discussed.     

西部地区新农村建设中一个亟待解决的问题

建设社会主义新农村是我国改善和发展农村面貌,发展和谐社会的重大举措。由于我国东西部发展的不平衡,西部农村经济发展相对东中部落后,如何建设西部地区新农村是一个值得探讨的问题．而要实现西部新农村建设这个目标的重要因素就是解决资金问题。     

De Proliferatie van Economische Modellen

Bespreking vanE. Scheele, Einkommensverteilung und Wirtschaftswachstum, J. C. B. Mohr (Paul Siebeck), Tübingen 1965, 263 blz. enE. Heuss, Die Verbindung von mikroökonomischer und makroökonomischer Verteilungstheorie. Walter Eucken Institut. VortrÄge und AufsÄtze. J. C. B. Mohr (Paul Siebeck), Tübingen 1965, 40 blz.