Influence of purchaser perceptions and intentions on price for forest land parcels: A hedonic pricing approach

A hedonic model was developed to analyze the market for undeveloped forest land in Minnesota. Variables describing in situ conditions, locational characteristics, buyer perceptions and intentions, and transactional terms were tested for their influence on sale price. The independent variables explained 67% of the per hectare sale price variation. Water frontage, road access and density, absentee ownership, future intentions, and financing arrangements had large, positive influences on price. Lack of a real-estate agent and agricultural land in the vicinity of the parcel had negative influences. A parcel's merchantable timber volume was not a significant predictor of price.     

中韩两国水果业生产成本及价格竞争力的比较——基于苹果、柑橘的分析

本文对中国与韩国的主要水果——苹果和柑橘的的竞争力进行比较,研究发现,中国水果业与韩国相比在生产成本、价格方面优势非常明显,韩国苹果和柑橘在单位生产率方面有明显的优势。而要把我国水果成本价格优势转化为对韩国市场的竞争优势关键在于突破技术性贸易壁垒。     

城市房价与全要素生产率:“挤出效应”与“筛选效应”

本文主要关注城市房价对整体全要素生产率和企业个体全要素生产率影响的差异性,重点分析城市房价上涨对工业企业的"筛选效应"与"倒逼效应"。利用230个地级市数据和微观工业企业数据,采用工具变量法分别检验了房价对城市整体以及工业企业全要素生产率的差异性影响。实证结果表明,城市高房价显著抑制了城市全要素生产率水平的提升,这种抑制效应主要来自房地产投资对实体经济资金的"挤占效应"和"资源错配效应"。城市房价快速上涨对工业企业的"筛选效应",使房价快速增长城市工业企业的全要素生产率一般会较高。如果对留存企业的"倒逼效应"难以抵消房价上涨带来的效率损失时,房价快速上涨累积形成的高房价与工业企业生产率之间会存在一种"倒U型"曲线关系。城市房价快速上涨对服务业企业的"锁定效应"与生产率的"侵蚀效应",使房价快速上涨及高房价城市中工业企业全要素生产率较高,但城市整体生产率水平较低。稳健性分析也支持了以上研究结论。     

贸易自由化对中国食物消费不平等的影响与路径研究——基于多元多重中介效应模型的检验

随着经济发展,人们生活水平不断提高,中国人均食物消费量不断提高,但食物消费不平等问题依然比较突出.本文基于贸易自由化的角度,引入价格和收入两个中介变量,利用中国家庭收入项目调查数据及其他相关数据,通过多元多重中介效应模型,从理论和实证上分析了贸易自由化对中国食物消费不平等的影响.研究发现,贸易自由化不仅可通过提高中国居...     

颅内压监测在重症颅脑损伤患者治疗中的应用

目的颅内压监测应用于重症颅脑损伤的临床意义。方法 2011年10月至2012年10月期间,我院诊治的60例重症颅脑损伤患者,根据随机数字法,将其分为对照组（常规治疗）和观察组（颅内压监测治疗）,每组各30例,平均随访6个月,对两组临床疗效、甘露醇应用时间和剂量进行观察和比较。结果与对照组相比,观察组临床疗效明显好转,甘露醇应用时间和剂量均明显减少,P〈0.05,差异有统计学意义。结论根据颅内压监测结果,及时调整重症颅脑损伤治疗,明显改善患者的预后质量。     

中国食用油涨价对经济影响的投入产出分析

食用油作为居民日常生活必须品,已渗透到了经济体的各个方面,其价格上涨必将引起相关产业部门价格的波动,进而影响到整个经济体的运行和居民生产生活。文章运用投入产出价格影响局部闭模型,并结合2007年投入产出表,量化了2009年四季度末食用油价格上涨对我国居民消费和国民经济各部门的影响。结果表明,农村居民生活消费受食用油价格上涨的影响大于城镇居民,消费者价格指数受到的影响大于生产者价格指数;在各产业中,受影响最大的是方便食品制造业、饲料加工业等食品工业和餐饮业。居民和大多数行业,对于食用油价格上涨有一定承受能力,此次食用油价格上涨在10～15％区间并不会导致物价水平大幅上升。价格作为市场经济中反映供求关系、资源稀缺程度的核心指标,其波动有合理性的一面,不必过分宣传或夸大食用油价格上涨对国民经济和居民生产生活的影响。     

信贷规模与房地产价格的非线性动态关系研究

本文运用非线性平滑转换模型对我国房地产价格与信贷规模的动态关系进行了研究,研究发现:2000年到2009年我国信贷规模的变动是房地产价格变动的格兰杰原因,信贷规模对房地产价格存在非线性影响,两者之间的关系适合使用LSTR1模型来拟合,当信贷规模的增长超过45.76%时,信贷规模的变动会对房地产价格产生影响,前一期和当期信贷规模增加1%,会分别导致当期房地产价格上涨0.3135%和0.0970%。研究结果的政策含义是只要房地产信贷规模控制在适当的范围,信贷规模的变动对于房地产价格的上涨就会有显著减弱,本文进一步指出在这种情况下,只有合理控制其他推高房地产价格上涨的因素才可能取得良好的调控效果。     

Trade subsidies,export bans and price stabilization: Lessons of Bangladesh–India rice trade in the 2000s

During the world food price crisis of 2007–08, rice importing countries suffered through a sharp increase in international rice prices and disruptions in supply as several rice exporters restricted trade to mitigate their domestic price increases. Perhaps no country was more affected by these disruptions than Bangladesh. Our analysis shows that prior to the 2007 crisis, when Bangladesh imported an average of nearly 1 million tons of rice per year from India, domestic wholesale prices of rice in Bangladesh were co-integrated with import parity prices of subsidized Below Poverty Line (BPL) rice. When in mid-2007, India sharply curtailed exports, rice prices surged in Bangladesh.Model simulations show that a relatively small increase in private consumer stocks equivalent to about 2 weeks of normal consumption could account for the large surge in domestic prices in Bangladesh and that an additional 300,000 tons (in addition to approximately 700,000 tons of net rice distribution that actually occurred) would have been sufficient to stabilize prices in the November 2007–April 2008 period. The Bangladesh analysis thus shows that in spite of the uncertainty in international markets, careful planning, timely interventions and openness to trade can substantially reduce requirements for public stockholding.     

Price convergence across regions in India

The paper attempts to examine whether there is price convergence across various regions in India. Using panel unit root tests that are robust to cross-sectional dependence, it is found that relative price levels among various regions in India are mean-reverting. Further, we decompose each series into a set of common factors and idiosyncratic components. The decomposition enables us to test stationarity and estimate half-lives of the common factors and the idiosyncratic components separately. Both these components are found to be stationary. Idiosyncratic price shocks, however, are found to be more persistent as compared to the common factor. Results also indicate that transportation cost proxied by distance can explain a part of the variation in prices between two locations in India. The authors would like to thank Dibyendu Bhaumik for arranging the data for this study. Views expresed in the paper are personal and do not reflect the views of the organizations.     

CPI、REI、PPI和房地产价格传导研究——来自上海的实证数据

本文基于上海价格指数数据研究居民消费价格指数(CPI)、原材料燃料动力购进价格指数(REI)和工业品出厂价格指数(PPI)及房地产销售价格指数的传导效应。通过DAG技术和多元动态因果检验,给出4种价格指数的同期因果流,揭示它们之间的因果联系和信息传导。实证研究表明,PPI对CPI长期传导效应显著,房地产销售价格指数对CPI有一定的弱传导效应。我国应重新编制CPI,提高居住类权重。