机构持股对房地产股票收益波动的影响研究——基于面板数据的门限分位回归模型

针对在不同的股市行情中机构持股与房地产公司股票收益波动之间的相关性问题,建立面板数据的门限分位回归模型进行检验。证实在不同的市场行情中,对于股票收益波动处于不同水平的房地产公司,机构持股的影响程度存在差异。当股市大盘出现极端情形,机构投资者加剧股市波动。大盘大跌,机构持股的促进作用随着股票收益波动的分位点的增大而增强。在盘整市,机构持股比例没有对股票收益波动产生显著影响,但其变动抑制股票收益波动。     

土地确权下的土地整治PPP模式研究综述

概述了传统土地整治模式,引入土地整治PPP模式,通过文献综述,论述了土地整治PPP模式的特点,分析了采用土地整治PPP模式进行土地整治工作的应用前景及存在的问题。结合目前土地确权、市场经济等政策,阐述了发展PPP模式对土地整治发展前景的影响。     

基于时态GIS的林权变更信息管理研究

分析了林权变更中时间信息、属性和空间变化信息,构建基于事件语义的时空数据模型,此模型用时间表、属性表和时空图分别描述林权变更过程中的时间信息、属性和空间变化信息,使用动作表描述林权变更过程中的空间变化类型.此模型使用SQL语言能够方便地进行时空信息查询,并能对某一状态林地的历史进行回溯.     

内蒙古东部地区大豆种植区划及育种目标分析

根据内蒙古东部四盟市的大豆分布特点,划分不同种植区,分析主推品种特性,进而探讨内蒙古东部四盟市不同地区大豆育种目标的建立及选育方向,以此推动区域大豆品种的更新换代,促进大豆生产,更好地服务内蒙古大豆产业的发展。     

The influence of dog ownership in childhood on the sociality of elderly Japanese men

In Japan, care for the elderly has been a serious social issue. The relationship between dog ownership and health of the elderly has attracted considerable attention, but it is still unclear whether dog ownership affects the health of owners. In this study, we focused on the experiences of dog ownership in the past. The questionnaire survey was conducted targeting elderly Japanese men and asking them to clarify whether the experience of dog ownership in the past influences their current mental and physical health. To examine the characteristics of the experience of dog ownership, we divided past dog owners by a hierarchical cluster analysis using the variables related to the experiences of dog ownership. We added the ‘never owned a dog’ group to the three groups that were provided by the cluster analysis, and conducted analysis of variance and multiple linear regression analysis using the variables of physical and mental health. The results showed that the group that owned their first dog at an early age and owned more dogs later scored higher in the companionship and social support scales. These results suggested that the experiences of dog ownership in childhood were related to the sociality of older men, such as the enhancement of their companionship with others.     

国有股和经理人持股对资本结构的影响——基于中国上市公司的理论研究

基于国内外对资本结构的研究,旨在阐述中国上市公司股权结构在多大程度上影响了其资本结构的选择,并着重分析了国有股和经理人持股2种股权结构对资本机构影响的原因,得出中国上市公司股权结构对资本结构的影响日益重要并将成为改善上市公司资本结构需要考虑的关键因素。     

Forest owners’ views on storing carbon in their forests

Given the high percentage of private forest ownership in Finland, family forest owners have an important role in mitigating climate change. The study aims to explore Finnish family forest owners’ perceptions on climate change and their opinions on increasing carbon storage in their forests through new kinds of management activities and policy instruments. The data consists of thematic face-to-face interviews among Helsinki metropolitan area forest owners (n?=?15). These city-dwellers were expected to be more aware of and more interested in climate change mitigation than forest owners at large. Forests as carbon fluxes appear to be a familiar concept to most of the forest owners, but carbon storage in their own forests was a new idea. Four types concerning forest owners’ view on storing carbon in their forests could be identified. The Pioneer utilizes forestland versatilely and has already adopted practices to mitigate climate change. The Potential is concerned about climate change, but this is not seen in forest practices applied. The Resistant is generally aware of climate change but sees a fundamental contradiction between carbon storing and wood production. The Indifferent Owner believes that climate change is taking place but does not acknowledge a relation between climate change and the owner’s forests.     

农村土地承包经营权确权对土地流转的影响研究——来自湖北省土地确权的实证

农村进入全面深化改革攻坚时期,研究农村土地承包经营权确权对土地流转的影响,对完善当前土地确权政策、促进农村土地流转、发展现代农业有重要的意义。基于湖北省6个地区土地确权和土地流转情况的实地调查,运用Probit模型和Logistic模型,分析是否确权和确权满意度对农户转入和转出的影响,探讨农村土地承包经营权确权对土地流转的影响。结果表明,在确权比例为75.56%的样本数据中,农户土地确权使农户参与土地流转的边际效应提高14.0%,农村承包土地确权登记颁证能够显著促进农地转出,而对农地转入影响不显著。土地确权的满意度高使农户参与土地流转的边际效应提高16.4%,农村承包土地确权登记颁证满意度对农地转出和转入均影响显著。农村土地承包经营权确权对土地流转的影响受到调查村所处地形条件等社会经济特征、承包耕地面积等家庭特征和主要工作等个人特征的影响,但影响程度存在一定差异。因此,可以采取加强宣传引导、提升土地确权颁证的满意度、加强农民的技能培训、完善农村基础设施建设等措施更好地促进农村土地有序流转。     

国外森林权属制度改革现状与路径

近30年来,世界许多国家开展了森林及林地权属制度改革。改革的主要方向是将森林/林木的所有权/经营管理权下放给政府之外的利益主体,包括家庭、企业和社区。这种改革涉及到森林管理权和经营利用权的下放及森林所有权私有化等复杂多样的产权形式。文中以联合国粮农组织发布的相关报告及国外林权改革相关文献资料为主要素材,选择德国、日本、新西兰、欧洲部分转型国家及独联体国家等诸多国家的改革案例,对国外林权制度改革类型进行梳理,以总结国外林权制度改革的现状、路径和趋势等,为我国林权制度改革提供借鉴。     

农地征用：GDP思维下的异化

近年来,对农地征用的研究已有很多,有的学者主张界定、明晰地权,有的学者主张建立监督约束机制,目的都是为了使农地征用规范化、程序化、利益分配公平化。本文在对农村地权的界定和农地征用中各方利益博弈的分析基础上,着重分析了政府行为,认为农地征用与当前GDP至上的区域经济竞争,以及与其相联系的干部提拔政治升迁有很大关系,并从执法、法律教育、政府考核以及财政方面提出政策建议。