The time frames of entrepreneurs

This study investigated past and future temporal depths (distances into the past and future) of entrepreneurs. The results provide the first statistics describing these depths in a sample of entrepreneurs. A significant positive correlation was found between past and future temporal depths, and relationships were examined between both temporal depths and polychronicity, preference for working fast, perceived temporal flexibility of work, emphasis on schedules and deadlines, emphasis on punctuality, and general life stress. Entrepreneurs' ages, lengths of future temporal depth, and perceived temporal flexibility were all found to be negatively related to life stress in a hierarchical regression analysis.     

The Analysis of Cost Utilities in Chinese Petrochemical Enterprises

The extensive applications of the flexible manufacturing （management） system and management information system are ultimate characteristics of economic process now and future. Those not only promote the trend of high gradation of cost system and the differences of cost utilities determined by their inconsistencies, but also eliminate the validity of the traditional cost control based on the thrift and monev-erubbing consciousness.     

激励相容与渔业管理

伴随着技术的不断进步和水产品市场需求的持续高涨，海洋生物资源稀缺性矛盾日趋尖锐。稀缺意味着竞争，竞争需要规范，产权是规范竞争的一种有效机制。产权重要，是因为不同的产权制度内含不同的激励效应。从而对渔民行为产生不同的影响，并进而决定渔业绩效。因此，构建激励相容的渔业产权机制，是确保渔业可持续发展的关键，也是渔业管理者“绕不过去的一道坎”。     

城市化进程中的土地稀缺性与政府管制

研究目的:分析城市化进程中土地稀缺性的表现形式和形成原因,探讨政府管制工具.研究方法:比较分析法.研究结果:在城市化的推动下,城市中心、城乡结合部和农村地区的土地利用分别具有竞争特征、转型特征和低收益特征,并因此衍生出不同的土地社会问题.研究结论:政府管制是解决土地社会问题的重要工具,政府应以区域土地资产最大化和社会公正为原则,对不同类型地区实施有差异的管制政策.     

Evolution of tubewell ownership and production in the North China Plain*

The overall aim of the present paper is to better understand the evolution of tubewell ownership in the North China Plain, especially focusing on the factors that determine ownership and its effect on production. Based on a random sample of 30 villages in three counties in the Hai River Basin, our results show that collectively owned tubewells have been gradually privatised. The analyses demonstrate that increasing water and land scarcity and policy intervention (mainly fiscal and financial subsidies for tubewell investment) leads to the observed shifts in tubewell ownership patterns. The results also show that the privatisation of tubewells has affected cropping patterns in the North China Plain. When villages shift towards private tubewells, farmers move into more water‐sensitive and high‐value crops. Privatisation, however, has no negative effect on crop productivity in the present sample. Importantly, the evolution of tubewell ownership in the villages studied does not accelerate the fall of the groundwater table.     

论知识经济对现代企业制度的影响

本文认为企业的产权制度安排是由资源的相对稀缺程度决定的。知识经济改变了资源的相对稀缺程度,从而改变了企业的产权制度以及它的实现形成———法人治理结构。     

Long-memory and heterogeneous components in high frequency Pacific-Basin exchange rate volatility

Recent research examining high-frequency financial data has suggested that volatility dynamics may be confounded by the existence of an intra-day periodic pattern and multiple sources of volatility. This paper examines whether these dynamics are present in the US Dollar exchange rates of five Pacific Basin economies. Using 30-min sampled returns, evidence of a ‘U’-shape intra-day pattern in volatility for regional markets is reported and controlled for using a Flexible Fourier transform. Supportive evidence for the existence of multiple volatility components is offered by semi-parametric fractional difference estimates of the long-memory properties of absolute exchange rate returns at various intra-day data sampling frequencies. Further parametric evidence of an explicit component structure in such high frequency exchange rate volatility is offered by the estimates of a component-GARCH model which comprises both a long-run volatility component exhibiting slow shock decay and a short-run volatility component exhibiting far more rapid decay, and provides a generally superior fit to the data. Further application of these C-GARCH models in the analysis of high frequency volatility spillovers between the currencies considered also reveals that such spillovers are predominantly transitory rather than highly persistent in nature, but that where volatility spillovers do impact on the long-run component of exchange rate volatility the Australian Dollar plays a pivotal role in the localised causality transmission mechanism.      

资源稀缺、技术冲击与风险投资退出时机

本文从风险投资市场资源稀缺的特征出发,建立了一个风险投资退出时机选择模型,在此基础上,运用2004-2011年中国风险投资退出的季度数据考察了技术冲击和市场利率等因素变化对风险投资退出时机的影响。研究发现：（1）资源稀缺的程度与风险投资退出时机的选择有着非常紧密的联系;（2）市场利率的变化对风险投资的退出行为的影响具有不对称性：市场利率下降可能会导致风险投资加速退出质量较差的风险企业,同时却更长时间地持有质量较好的风险企业;（3）技术进步会增加风险企业的数量,提高风险投资市场上风险企业的平均质量,加速风险投资退出。     

Power moderates the impact of desire for exclusivity on luxury experiential consumption

This research examines the effect of desire for exclusivity on evaluations of luxury experiences and proposes a boundary condition for the effect. The scarcity effect literature suggests that consumers prefer scarce products due to limited supply because they appeal to consumers’ desire for exclusive consumption. Building on this thesis, the current research argues that luxury experiences are intrinsically scarce enough to appeal to consumers’ desire for exclusivity: Consumers with a strong desire for exclusivity will evaluate luxury experiences more favorably than those with a weak desire for exclusivity. A pilot study confirms a positive correlation between consumers’ desire for exclusivity and attitudes toward luxury experiences. Study 1 demonstrates that consumers with a strong desire for exclusivity show more favorable attitudes toward luxury experiences than those with a weak desire for exclusivity. Further, Study 2 finds that consumers’ power state (powerful vs. powerless) moderates the effect of desire for exclusivity on their affinity for luxury experiences: Only when feeling powerful do consumers with a strong desire for exclusivity evaluate luxury experience more favorably than those with a weak desire for exclusivity. However, this is not the case when consumers feel powerless.     

Object-based,multi-sensor habitat mapping of successional age classes for effective management of a 70-year secondary forest succession

Multi-temporal change detection over decades including the pre-satellite era is challenging due to the different image types available over time, and this explains the scarcity of long-term studies of vegetation succession which can play a pivotal role in the restoration of biodiversity in regenerating forests. This study describes a semi-automated, object-based habitat classification method for change detection of tropical forest succession since 1945. The study uses a set of black and white aerial photographs and high-resolution satellite images which differ in quality and resolution, to investigate forest successional patterns and their implications for informed ecosystem and land rehabilitation management. For optimized habitat boundary delineation from black and white aerial photographs and panchromatic satellite images, three levels of hierarchical image object primitives were created. The minimum object sizes of 50 m², 500 m², and 1000 m² maximized inter-object and minimized intra-object variability according to the scale of habitat patches and imagery used. Object-Based Image Analysis (OBIA) provided additional Grey-Level Co-occurrence Matrix (GLCM) textural features of segmented objects which helped to incorporate knowledge-based rule-sets into the final habitat classification which was done manually. Results show accuracies for grassland greater than 94%, monoculture plantations were distinguished from natural forest with 95% accuracy, and isolated mature stands of natural forest achieved 75% accuracy. Consideration of multi-date images increased the accuracy of distinguishing between mixed plantations and natural forest as well as between shrubland and young secondary forest. The resulting maps of vegetation structure at five time periods from 1945 to present gave new insights into the ecological processes of secondary forest succession. These include the surprising rapid rate of natural forest regeneration, at an annual rate of 7.7% from 1945 to 2014, and an even faster rate of 11% during a period when hill fires were controlled. The last areas to succeed to forest are those which are still, or at some time have been under exotic mono-cultural plantations. This suggests that long term protection from hill fire would be a better option for assisting natural succession in the landscape than plantations, which are both costly, and act as barriers to natural succession. Overall, with more than 92% mapping accuracy, the method can be adapted for other multi-temporal, multi-sensor studies as it enables inclusion of spatial theories by dividing the satellite image into time-consistent geographic entities according to the scale of target objects and image resolution. The accurate maps of forest cover patches at different successional stages can also help in site specific management of the recovering forest, such as introduction of shrub seedlings to bridge bottlenecks in seed dispersal according to shrub density and dispersal distances for forest birds. Late successional tree species can also be introduced in areas where only early successional species are present after 50 years of succession.