Alfred Marshall,Silver, and China

The paper provides an empirical investigation of Alfred Marshall's analysis of the silver flow mechanism between the West and the East, which maintains that silver will flow whenever there is a difference in its purchasing power. The results show that Marshall's analysis offers an empirically sound interpretation of changes in the price level in China and the silver flow across China's borders. The results also confirm that there was a high degree of international integration for China's internal and external prices of silver. Moreover, the stable purchasing power parity could in practice be maintained by silver flow without resorting to a substantial percentage of tradable goods.     

基于单片机的淋浴水温控制系统的设计

本文详细介绍了淋浴水温控制系统的设计过程,涉及系统结构设计、各个主要硬件部分的设计,并且对程序进行模块化设计,提高了系统开发的速度。在此基础上,详细介绍了带死区的PID算法控制程序实现,通过软件实现对水温的控制,使用继电器执行控制装置。     

关于铁路货运量预测研究

采用灰色关联分析方法选取影响铁路货运量变化的宏观影响因素,运用多变量灰色MGM(1,4)模型预测未来4年铁路货运量,预测结果通过后验差检验,精度较好。     

MARKET RESPONSES TO CLIMATE STRESS: RICE IN JAVA IN THE 1930S

Do markets in less-developed countries abate consequences of climate stress? Using changes in regional rice prices across the 19 regions in Java, Indonesia, during 1935–40, this paper will assess how rice markets responded to variations in rainfall, which is an important factor in rice production. It finds that rice markets were highly integrated across Java. The El Niño-induced episodes of lower than usual rainfall in 1935 and 1940 did not have a negative effect on levels and variations in regional rice prices, nor did they have adverse consequences for the supply of rice. Adaptive responses of firms specialising in the trade of rice are argued to have mitigated regional deficiencies in food production caused by climate stress.     

PHYSICAL STATURE IN NINETEENTH‐CENTURY NEW ZEALAND: A PRELIMINARY INTERPRETATION

During the late nineteenth century, the physical stature of New Zealand‐born men stagnated, despite an apparently beneficial public health environment and growth in per‐capita incomes. We examine trends and differentials in male stature through World War I enlistment and casualty records. Stature varied by social class, with professionals and men in rural occupations substantially taller than their peers. There is not enough evidence to show that the indigenous Maori population differed in height from men of European descent. Stagnation in stature in late nineteenth‐century New Zealand is consistent with patterns observed in Australia, North America, and Western Europe.     

SELF‐CONTROL PROBLEMS AND CONSUMPTION‐SAVING DECISIONS: THEORY AND EMPIRICAL EVIDENCE*

Time‐discounting is a fundamental preference which affects wealth accumulation. If people are impatient, they may spend their earnings instantaneously, and do not save enough for the future. People are often time‐inconsistent, i.e., they often put exceptionally high value on immediate consumption compared to any time in the future. Whether they are aware or not, these individuals are susceptible to self‐control problems. In this paper, we review theoretical and empirical research on time‐inconsistency and self‐control problems, particularly on consumption and saving, and discuss their policy implications.     

基于环境库兹涅茨曲线的北京市碳排放与经济增长相关性研究

利用环境库兹涅茨曲线,对北京市1998--2009年人均碳排放与地区生产总值的相关性进行了研究,发现环境库兹涅茨曲线呈倒“N”型,而不是常规的倒“U”型。北京市碳排放之所以在不同时间段内呈现不同的升降趋势,是因为除经济增长外,其他因素,如产业结构、时代背景、相关政策法规的实施等也对碳排放造成影响。为了完成“十二五”规划任务,实现建设世界城市和宜居城市的目标,北京市应合理控制经济发展速度、努力推动节能减排和积极开发利用新能源。     

Structural models and endogeneity in corporate finance: The link between managerial ownership and corporate performance

This paper presents a parsimonious, structural model that isolates primary economic determinants of the level and dispersion of managerial ownership, firm scale, and performance and the empirical associations among them. In particular, variation across firms and through time of estimated productivity parameters for physical assets and managerial input and corresponding variation in optimal compensation contract and firm size combine to deliver the well-known hump-shaped relation between Tobin's Q and managerial ownership. To assess the effectiveness of standard econometric approaches to the endogeneity problem, we apply those remedies to panel data generated from the model. The unfortunate conclusion is that, at least in the ownership-performance context, proxy variables, fixed effects, and instrumental variables do not generally provide reliable solutions to simultaneity bias.     

Libor manipulation?

On May 29, 2008 the Wall Street Journal published an article alleging that several global banks were reporting Libor quotes significantly lower than those implied by prevailing credit default swap (CDS) spreads. While acknowledging that the “analysis doesn’t prove that banks are lying or manipulating Libor,” it nevertheless conjectures that these banks may “have been low-balling their borrowing rates to avoid looking desperate for cash.”In this paper we compare Libor with other short-term borrowing rates, analyze individual bank quotes, and compare these individual quotes to CDS spreads and market capitalization data during three periods: 1/1/07-8/8/07 (Period 1), 8/9/07-4/16/08 (Period 2), and 4/17/08-5/30/08 (Period 3). We find some anomalous individual quotes, but the evidence is inconsistent with a material manipulation of the US dollar 1-month Libor rate.     

Historical evidence on the finance-trade-growth nexus

We study linkages between financial development, international trade, and long-run growth using data since 1880 for 17 now-developed “Atlantic” economies and a set of cross country and dynamic panel data models. We find that finance and trade reinforce each other in data before 1930, but that these effects do not persist after the Second World War. Financial development affects growth positively throughout the sample period, while trade affects growth strongly and independently after 1945. We attribute the rising importance of trade to major post-World War II changes in tariffs and quantity restrictions associated with the GATT, the establishment of the European Common Market, and the gradual elimination of capital controls after 1973. The findings are robust to the use of ‘deep’ fundamentals such as legal origin and indicators of the political environment as instruments for financial development and trade. Financial development, however, links more closely than trade to these fundamentals.