美元本位制、美元霸权与美国金融危机

美元本位制下,美元霸权表现为中心一外围框架体系.在该体系下,中心国美国与外围国家的权益和义务不对称,地位不对等,而且框架体系本身具有内在的不相容性,这些特征决定了美元本位制的内在脆弱性,由此也使美国落入美元本位制的陷阱,造成美国国内利率下降、消费信用过度扩张、制造业陷入衰退等经济失衡,最后当信用泡沫破灭时,金融危机爆发.     

U.S. farm dynamics and the distribution of U.S. agricultural subsidies

The persistent instability of the agricultural sector is the fundamental premise of most agricultural policy. Yet no research has ever quantified the aggregate dynamics of individual farms in the US. This article is the first to combine the US Census of Agriculture with the Agricultural Resource Management Survey to observe the dynamics of nearly 1.5 million farms. The data reveal substantial variation in farm size expansion and contraction. Most of this variation is unobservable in the sector totals reported by the US Department of Agriculture each year. The distribution of agricultural subsidies suggests that subsidies become more important as farms get smaller and may play a role in slowing farm size contraction.     

U.S. insurance trade

The U.S. has had significant trade deficits in insurance for several years. This paper examines the reasons for such big annual deficits. A large home market, a low reinsurance capacity, and the conservative attitude of U.S. insurers toward foreign markets are identified as the primary contributors to such deficits. The paper also addresses the issue of how U.S. insurers can improve their international competitive position. By expanding their operations abroad, particularly in Mexico and Latin America, and by actively participating in the fast-growing Asian markets, American insurers have their greatest chance to accomplish that objective.     

Asymmetric J-curve: evidence from industry trade between U.S. and U.K.

ABSTRACT

Previous research that assessed the impact of exchange rate changes on the trade balance between the U.S. and U.K. assumed the effects are symmetric. In this paper, we add to the literature on the asymmetric J-curve phenomenon by considering the trade balance of 68 two-digit industries that trade between the two countries. We find short-run asymmetric effects of the real dollar-pound rate in almost all industries. However, short-run asymmetric effects were translated into significant long-run asymmetric effects in 25 industries. Indeed, the asymmetric J-curve hypothesis was supported in 18 industries.     

美国经济失衡对美元汇率的影响

经济内部失衡或者外部失衡对汇率的影响都是不确定的,但是,当经济内外部同时失衡时,汇率贬值或政府干预外汇市场的可能性最大。实证结果支持了上述结论。当美国经济内外部同时失衡时,美元贬值或美国政府干预外汇市场的概率就会提高27个百分点。这意味着,通过汇率变动,美国将内部问题外部化了。理解了美元汇率变动的原因实际上也就理解了21世纪初期以来人民币面临升值压力的原因。     

The U.S. immigration crisis

A review of the factors affecting immigration to the United States is presented. The authors develop the argument that present levels of immigration, particularly illegal immigration, are detrimental to U.S. interests, and that current global population trends will make this situation progressively worse. Stricter controls on immigration are considered.     

Explosive U.S. budget deficit

In this study, we present new evidence that the postwar U.S. federal budget deficit was explosive in nature. Because of the government's inevitable attempts to reduce high or rapidly growing budget deficits, the deficit may contain a substantial component that periodically collapses, which renders the standard unit root tests biased toward stationarity. We apply a newly proposed recursive unit root test for explosiveness, which is known to be powerful to the periodically collapsing component. Although the evidence for explosiveness we found herein is not overwhelming, this study should at the very least serve as a warning against a blind application of standard unit root tests to budget deficits, which may harbor components that periodically collapse.     

Taxes, Regulations, and the Value of U.S. and U.K. Corporations

We derive the quantitative implications of growth theory for U.S. corporate equity plus net debt over the period 1960–2001. There were large secular movements in corporate equity values relative to GDP, with dramatic declines in the 1970's and dramatic increases starting in the 1980's and continuing throughout the 1990's. During the same period, there was little change in the capital–output ratio or earnings share of output. We ask specifically whether the theory accounts for these observations. We find that it does, with the critical factor being changes in the U.S. tax and regulatory system. We find that the theory also accounts for the even larger movements in U.K. equity values relative to GDP in this period.     

美国政府对外国参与美国研发活动的管理概况

本文主要探讨美国对外国参与美国研发活动的基本态度以及政府管理的基本情况。     

U.S. DEPOSIT INSURANCE REFORM

Congress, late in 1991, enacted a banking reform measure that (i) authorizes $70 billion of additional FDIC funding, (ii) enhances bank regulation and supervision, and (Hi) adopts a "trip wire" system for increasingly severe regulation based on a bank's capital. Congress rejected a number of key elements of the Treasury proposal submitted early in 1991, such as interstate banking and expanded bank powers. The Congressional action does not end the debate over banking reform. In due time, other attempts likely will be made to restructure the banking system along the lines of the Treasury proposal.
The Treasury proposal's positive points failed to offset its fundamental problems. The Congressional action, though not subject to the Treasury proposal's problems, falls short of complete deposit insurance reform. Both proposals fail to recognize that regulatory oversight is a poor substitute for market discipline in the current financial environment.
This paper reviews problems with the financial reform process and failure of the Treasury proposal to recognize these problems. It also reviews alternative approaches to deposit insurance reform.     

美、日、欧盟绿色技术创新比较研究

美国、日本和欧盟各国根据各自的国情,构建了不同的国家绿色技术创新体系,并在绿色技术创新领域取得了不欲的成绩。对三者的创新模式、技术、组织和政策等4个方面进行比较研究,以期为我国绿色技术创新体系的建设提供借鉴。     

Outmigration of U.S. immigrants

"A methodology is devised for the empirical analysis of the determinants of outmigration of immigrants in a population. Empirical studies in this area have been hindered by a lack of longitudinal data on the characteristics of the immigrants. This problem is tackled by making use of cross-sectional data at two points in time. It is applied to the study of male immigrants in the United States. It is found that education is positively related to the rate of outmigration for immigrants from Canada, Asia and the pooled sample of immigrants. This finding suggests that the cross-sectional estimates of the growth in earnings of immigrants in the United States are underestimated for these groups of immigrants."     

现代经济学在美国

现代经济学的分析框架由三个重要部分组成：视角（perspective)、参照系（reference）或基准点（benchmark）和分析工具（analytical tools）。效率是经济学家分析问题的着眼点；参照第在分析框架中居于核心位置；分析工具是重要的分析问题的手段。以上对理解现代经济学很重要。数学在经济学中的作用分两个方面：一是在理论分析中的作用，它可以逼你把前提假定写清楚，使你在逻辑推导中少出错，并运用已有的定理把不相通的结论连结起来；二是数学在教学中的作用，它可以以同一标准将经济学知识传授给很多人。但是，数学的作用只能是工具。经济学的思想是最重要的。     

U.S. OIL DEMAND AND CONSERVATION

Recent history has lent casual support to three popular theories about U.S. oil demand: (i) U.S. oil consumption is very insensitive to changing oil prices, (ii) non-price conservation has reduced U.S. oil demand, and (Hi) U.S. oil consumption falls more when oil prices rise than it rises when oil prices fall. Together, these theories suggest that one could hold oil consumption constant without much economic sacrifice. The authors' econometric evidence does not support these theories. This evidence indicates that U.S. oil consumption is fairly responsive to price changes over the long run, but with a considerable lag. Sharp oil price increases—or an equivalent policy action—would be needed to hold oil consumption constant during the 1990s.     

THE U.S. WESTWARD EXPANSION*

The U.S. economic development in the 19th century was characterized by the westward movement of population and the accumulation of productive land in the West. This article presents a model of migration and land improvement to identify the quantitatively important forces driving these phenomena. The conclusion is that the decrease in transportation costs induced the westward migration, whereas population growth was responsible for the investment in productive land.     

美国联邦政府资助的基础研究

美国国力强大的因素之一是其雄厚的基础研究.联邦政府是经费投入主体,大学是研究主体,美国政府在推动基础研究中发挥重要作用,多年保持基础研究投入的稳定增长,成为基础研究的主渠道；立法保障重点基础研究机构翻番的目标,加大重点领域的投入；通过基础研究投入增强了创新实力,改善了生活质量,促进了经济发展.