用小型数据库实现进口铁矿检验的质量分析

利用小型数据库Access并结合数据分析工具Excel对各产地进口铁矿品质的化学分析、物理试验结果进行质量分析以及对各产地、用户的贸易量进行统计,从而使检验检疫部门能及时掌握了解进口铁矿动态信息,为检验和监管提供参考和帮助.     

Public finance and the optimal speed of transition*

We develop a general equilibrium model that jointly considers the influence of capital accumulation constraints and of labour market frictions on the process of transition. We endogenize the economic and budgetary costs of different government policies and show that, early in transition, governments ought to subsidize state firms. Provided that intertemporal commitment is feasible, this policy limits the initial output fall, which relaxes capital accumulation constraints, accelerates transition, and increases welfare. Moreover, by resorting to indirect – instead of direct – taxes, governments can bring the path of transition closer to the first best. Yet, political pressures may induce a policy of suboptimal subsidization.     

“万村千乡”推广悖论及其解决方案

在农村消费市场存在差异的条件下，全国范围的以行政补贴和市场推广相结合的“万村千乡”推广方式将面临“推广悖论”，即工程的普遍服务职能与企业追求利润的目标之间的冲突，进而可能会造成财政补贴资金的浪费。应在不同区域采用不同的推广策略：发达地区农村，应以企业自主经营为主；具有一定消费市场潜力但企业开拓成本还比较高的地区，应行政补贴和市场推广相结合；尚不具备经营条件的农村地区，应加强基础设施建设，并提高农民收入水平，待时机成熟后再逐步推进。     

Domestic Support and Border Measures for Processed Horticultural Products

In horticultural markets, trade barriers often apply to the processed products whereas domestic support applies to farm-produced raw commodities. Here we assess the effects of such trade barriers and domestic support by simulating the effects of policy reform on global processing tomato markets, which are faced with modest processed product tariffs and high domestic support in the European Union (EU). Both protection and EU subsidy drive down world welfare, but we find that reducing import tariffs for tomato products would yield greater effects on markets and larger welfare impacts outside Europe than would reductions in EU domestic support.     

在VB.NET中用ADO访问Access数据库的方法

文章介绍了怎样利用VB．NET强大的类开发功能，把ADO访问数据的方法编成组件，完全封装起来，以方便软件开发者访问数据，提高开发效率。     

政府补贴、机构股东与成本粘性

以2013—2017年沪深A股上市公司为样本,采用拓展的成本粘性模型,探究“八项规定”后政府补贴、机构股东对企业成本粘性的影响,以及机构股东的调节作用,研究发现：政府补贴增强了成本粘性,机构股东能抑制成本粘性,机构股东对政府补贴与成本粘性之间的关系起负向调节作用。进一步研究发现,政府补贴对成本粘性的影响与企业产权性质无关;机构股东对成本粘性的影响以及机构股东的调节作用仅在非国有企业中存在。不同地区,政府补贴、机构股东、成本粘性之间关系不同。政府补贴对成本粘性的影响仅在地方政府官员未发生变更年份时存在;机构股东对成本粘性的影响与地方政府官员变更无关,但机构股东的调节作用仅在地方政府官员未发生变更年份存在。     

Deregulating Network Industries: Dealing with Price-quality Tradeoffs

This paper examines the effects of introducing competition into monopolized network industries on prices and infrastructure quality. Analyzing a model with reduced-form demand, we first show that deregulating an integrated monopoly cannot simultaneously decrease the retail price and increase infrastructure quality. Second, we derive conditions under which reducing both retail price and infrastructure quality relative to the integrated monopoly outcome increases welfare. Third, we argue that restructuring and setting very low access charges may yield welfare losses, as infrastructure investment is undermined. We provide an extensive analysis of the linear demand model and discuss policy implications.     

Property rights protection and access to bank loans

Poor protection of private property has limited the access to bank loans by private enterprises in developing and transition economies. Under those circumstances, private entrepreneurs have resorted to various ways of enhancing the de facto protection of private property. Using a dataset of 3,073 private enterprises in China, this paper empirically investigates the impact of political participation and philanthropic activities – informal substitutes for the lack of formal protection of private property – on the access to bank loans.     

Pricing access in network competition

We compare various access pricing rules in the two-way access model. We show that the Generalized Efficient Component Pricing Rule (TECPR) leads to a lower equilibrium price than does the Efficient Component Pricing Rule, (ECPR) marginal cost pricing, (MCP) and any non-negative fixed access charges.      

用Delphi实现任意文件的数据库存取

介绍在Delphi中，如何利用流、BLOB、OLE以及结合WinRAR压缩软件，进行任意文件的数据库存取，从而解决Delphi对文件数据在数据库中各种编程的操纵．