我国黄金期货与现货市场的价格变动和价格发现机制

本文通过实证方法,研究了我国黄金期货与现货市场的价格发现机制,研究结果表明,目前我国黄金期货市场的价格发现功能尚未有效实现,主要原因在于我国黄金期货市场的投资者组成结构不合理以及期货市场和现货市场存在一定程度分割.因此,可以考虑适当放宽黄金期货市场准入,鼓励机构投资者进入黄金期货市场,整合现货市场和期货市场的交易规则,改进黄金期货的价格发现和套期保值功能,提高我国黄金期货市场的运行效率.     

科技型中小企业成长因素分析

对我国科技型中小企业成长的影响因素进行的理论和实证分析表明,受制于现阶段我国科技进步的国情,作为我国科技创新主体的广大科技型中小企业的发展状况并不是很乐观。大部分科技型中小企业仍然处于传统产品的生产领域中,企业科技投入水平低,限制了企业的进一步成长。对科技人员和知识成果不够重视,仍然以传统的方式进行生产经营,企业未来的成长性因此受到很大限制。     

海峡两岸(广西玉林)农业合作试验区建设发展与金融支持问题研究

本文通过考察“试验区”建设发展现状,分析金融支持“试验区”建设发展存在问题及原因,探索如何构建金融服务平台、创新金融服务手段,以促进“试验区”的建设发展.     

关联交易对石油企业的影响及对策

随着企业组织形式和公司治理结构的演变，关联交易已成为石油行业上市企业和未上市企业必须认真面对的大问题。文章分析了石油企业在关联交易中普遍存在的问题，并结合关联交易的政策走向，对油田企业关联交易的运作策略进行了探讨，并对如何搞好关联交易进行了理性分析，提出策略和建议。     

攀枝花市矿产资源综合利用策略探讨

结合攀枝花矿产资源特征、矿产开发及其利用现状,分析了矿产资源开发利用过程中存在的资源利用率相对较低、环境破坏严重等一系列问题.通过分析攀枝花市现有的矿产、水能、生物、太阳能资源,提出了综合利用各种有利资源,合理开发利用矿产资源的建议.     

流域生态补偿中的水资源准市场交易机制研究

建立起市场化水资源配置机制是解决流域水资源短缺和推动流域生态保护的最有效方法.当前,流域水资源商品的准市场化交易模式更符合我国基本国情.为此,本文对流域水资源准市场机制的内涵和机制构建进行了探讨,提出以政府规制为手段构建流域水资源准市场体系,并利用Holmtrom-Milgrom“委托——代理”模型对流域水资源准市场机制进行了建模研究,为构建流域水资源准市场机制提出了政策建议.     

Dirichlet process mixture models for insurance loss data

In the recent insurance literature, a variety of finite-dimensional parametric models have been proposed for analyzing the hump-shaped, heavy-tailed, and highly skewed loss data often encountered in applications. These parametric models are relatively simple, but they lack flexibility in the sense that an actuary analyzing a new data-set cannot be sure that any one of these parametric models will be appropriate. As a consequence, the actuary must make a non-trivial choice among a collection of candidate models, putting him/herself at risk for various model misspecification biases. In this paper, we argue that, at least in cases where prediction of future insurance losses is the ultimate goal, there is reason to consider a single but more flexible nonparametric model. We focus here on Dirichlet process mixture models, and we reanalyze several of the standard insurance data-sets to support our claim that model misspecification biases can be avoided by taking a nonparametric approach, with little to no cost, compared to existing parametric approaches.     

Trade liberalisation and domestic brands: Evidence from China's accession to the WTO

In this paper, we examine how trade liberalisation affects firms' branding behaviours. We investigate this question with China's accession to the WTO in late 2001. We find that firms in sectors with large import tariff reductions discontinue more trademarks. Meanwhile, these firms file more trademark applications and their total number of effective trademarks increases after trade liberalisation. This growth in trademarks is mainly driven by large firms, as measured by the number of employees. In fact, small firms' applications and effective trademarks decline during trade liberalisation. It is also found that trademark applications are mainly filed for the traditionally non-dominant products of industries. We provide a conceptual model that incorporates the channels through which both passive and active responses occur.     

劳动力转移对湘北农村留守老人养老的影响

以农村劳动力转移为视角,对湘北农村留守老人养老进行实地调查,分析得出其劳动力流出对湘北农村留守老人养老的影响要素,同时结合相关养老政策性文件,梳理出劳动力转移对湘北农村留守老人养老需求的主要影响指标;应用层次分析(AHP)模型,计算其各影响指标权重并排序,得出湘北农村劳动力转移对其留守老人养老需求要素的影响程度,进而有针对性的提出改进策略.