Joint estimation using revealed and stated preference data: An application using a national forest

We combine contingent behaviour with travel cost data to estimate the change in the recreational use value of a National Forest due to quality and price changes. Instead of the usual improvement scenario, a hypothetical deterioration in the conditions of the forest due to a fire is considered. A dataset containing five observations for each respondent enabled the estimation of three models for which the number of scenarios differed. The results show that visitors are sensitive to price and quality changes and that in the forest fire scenario the intended number of trips would be reduced and that respondents would experience a welfare loss. Signs of inconsistency between preferences expressed by revealed and intended behaviour were found. This research also provides some indications that strategic bias affects answers to price changes.     

提高综放工作面煤炭回收率浅析

全面分析综放工作面煤炭损失,提出了提高综放工作面顶煤回收率的有效途径及管理方法,总结了姚桥矿提高综放工作面顶煤回收率的经验。     

后浇带在建筑工程施工中的应用

施工后浇带主要用于解决高层主楼与低层群房间差异沉降、钢筋混凝土收缩变形减小温度应力。本文结合茂名市翠辉房地产开发有限公司人民家园综合楼(地上13层地下1层,总建筑面积10639m2),通过介绍施工后浇带的功能、做法及遇到的问题等谈谈其在工程上的应用。     

浅论建筑水电安装的质量控制方法

本文作者根据其多年实践经验,从建筑水电工程的设计图纸,设计方案和质量管理等方面,探讨了建筑水电安装的质量控制方法。     

节能技术在建筑设备工程中的应用与探讨

伴随着我国经济高速发展、产业结构调整及世界性能源紧缺的大背景下,建筑节能已经成为建筑行业必须面对、考虑和解决的问题。本文从建筑设备工程所涉及的给排水管网系统的减压节流、水泵的变频控制,空气调节系统节能技术,电气系统节能技术等几方面进行阐述。节能技术在建筑设备工程中的应用与开展,有着重大的社会效益、经济效益和业主效益,同时也是社会和建筑行业发展的必然。     

中学化学玻璃仪器的洗涤

在化学实验中,洗涤玻璃仪器不仅是一项必须做的实验前的准备工作,也是一项技术性的工作。     

中国寿险业综合融资能力的动态比较及特征分析

寿险业近年的融资量不断增加,但偿付能力却未根本改变。本文利用熵值法和动态评价法,计算了各寿险公司2007-2010年的综合融资能力,分析了综合融资能力的差异以及在内部融资、债务融资和股权融资的表现差异和融资特征。结果表明,大型公司的综合融资能力具有明显优势;内部融资能力对寿险公司的影响一直较弱;股权融资的影响力度略大于债务融资,中国寿险业具有明显的股权融资偏好。进一步分析显示,大公司具有较强的内部融资能力,但在债务融资和股权融资方面没有明显优势,同时,外资寿险公司的综合融资能力普遍不高,在各融资渠道方面都有待改善。     

Managing For Successful Customer Acquisition: An Exploration

Abstract

This paper explores how consumers select different peers in their social network when obtaining positive verses negative referrals, and the role of social cues in this selection process. An inductive framework incorporating a mixed method process was employed. Thirty in-depth interviews were used to understand how consumers activate specific peers when seeking referrals. First, participants mapped their peer networks and, second, debriefs were undertaken to understand how their peer networks were used across ten product categories. Our research identifies that the choice of peer when seeking referral information is conditional on the type of referral sought. Also, that the cues used by consumers when selecting the most appropriate peer differ depending on the type of referral sought. The different peer activation for these two types of referrals indicates a need to adopt strategies specific to the different referral types.     

Farmers,Biodiversity and Plant Protection: Developing a Learning Environment for Sustainable Tree Cropping Systems

More diverse, perennial cropping systems often have better natural mechanisms for keeping pests at bay. But while scientists emphasise the broad benefits of conservation in terms of effective ecosystem functioning, farmers are more interested in biodiversity for the provision of food or of services such as shade or windbreaks. Because of their limited knowledge of the role of biodiversity in plant protection, farmers sometimes unconsciously disturb natural regulatory mechanisms. Some citrus farmers in Vietnam introduced sapodilla as an intercrop to diversify their source of income, and because this fruit tree requires little care. However, this apparently worthwhile attempt to combine two valuable crops has misfired. The ecological conditions that traditionally sustained natural pest control in citrus have been disturbed, thus trapping farmers in the pesticide treadmill. The weaver ant Oecophylla smaragdina stopped protecting citrus from stinkbugs and leaf-feeding caterpillars after facing competition from the black ant Dolichoderus thoracicus, which favours sapodilla trees as a nesting habitat. To avoid similar scenarios in the future, methods for linking scientific research on ecosystem functions with farmers' own knowledge, experience and priorities are presented. Examples are given of ways in which farmers in perennial cropping systems learn, and how scientists can facilitate this learning process.     

工程造价全过程控制的重点与对策

从三个方面论述了建设项目的全过程造价控制工作。