An examination of the intraday behavior of the yen/dollar exchange rate: The relationship between trading activity and returns volatility

This paper provides additional empirical evidence of the relationship between the volatility of returns and trading activity in foreign exchange markets. Five-minute yen/dollar returns exhibit significant skewness, kurtosis, negative first-order autocorrelation and heteroskedasticity. Market activity (as measured by the intensity of quote arrivals) has a positive and statistically significant effect on conditional returns volatility. Such evidence is consistent with predictions of mixture of distrubutions models.     

Trade Liberalization and Pollution: An Input–Output Study of Carbon Dioxide Emissions in Mexico

This paper examines the environmental effects associated with Mexico's participation in the North American Free Trade Agreement (NAFTA). The objective is to provide quantitative estimates of carbon dioxide (CO₂) emissions from changes in the level and structure of production and consumption activity in Mexico following a liberalization of trade. The quantitative analysis was performed using input–output methods with fuel use modifications to account for CO₂ emissions before and after NAFTA's implementation. As a result of NAFTA, CO₂ emissions are expected to increase from the anticipated increase in the size of the Mexican economy. While total emissions increase as a result of tariff elimination, there is also a shift in the structure of production and final consumption away from those sectors that are the most C02 intensive.     

EXPLORING THE LINK BETWEEN ORGANIZATIONAL STRATEGY AND THE EMPLOYMENT RELATIONSHIP: THE ROLE OF HUMAN RESOURCES POLICIES*

Links between organizational strategy, human resources (HR) policies, and the employment relationship are investigated through surveys of US executives and HR managers. Human resources policies are measured as both an overall philosophy (an internal to an external focus) and a series of items. the items factor into four dimensions: retention, staffing, performance and compensation. Results indicate that staffing policies are associated with organizational strategy. Retention policies are related to the employment relationship. However, the overall HR philosophy is not related to either organizational strategy or the employment relationship. the findings indicate that relationships between organizational strategy, HR and the employment relationship are more complex than previous models had indicated.     

Where have all the traditional classroom settings gone?—The use of large scale, public sector projects to illustrate a multidisciplinary approach to problem solving

This work describes the evolution and potential of an elective course for students who have already been exposed to the standard techniques of problem solving as presented in traditional courses. Students apply these techniques to large scale problems in directed mullidisciplinary project teams. In doing so, they are provided with a unique learning experience allowing them to serve as a resource to the community. Course projects described here include the promotion of a railing retail district; the formulation, implementation and monitoring of litter reduction strategies; the economic evaluation of using inmate labor to clean public areas; and economic comparisons of recycling strategies for used tires.     

A stakeholder perspective of employee responsibilities and rights

This article offers a perspective that serves as an alternative to dealing with workplace issues within the framework of managerial capitalism. In accomplishing this, the article questions managerial capitalism by drawing from some of the same arguments used to justify it—such as those based on corporate morality, the law, notions of bureaucracy, and social construction of reality. Introducing and applying a strategy of inquiry known as deconstruction helps fulfill the underlying analysis. The result is an articulation of a stakeholder perspective of employee responsibilities and rights. This is an extended version of an Invited/Guest Paper presented to the Study Group on Employee Rights and Industrial Justice of the International Industrial Relations Research Association, at the 43rd IRRA Annual Meeting, Washington, D.C., December 27, 1990.     

Introduction to the special issue on positive conflict—Conflict and employees: The right and processes to be heard

Conflict, defined as clash, competition, or mutual interference of opposing or incompatible forces or qualities, may be positive. The appropriate amount of conflict may be a delicate balance not easily achieved. Thus, a key issue is conflict management. The major charter of this special issue is the presentation of work which suggests or demonstrates that conflict can be a positive force in the modern organization. It also is pointed out that conflict, positive or otherwise, and its resolution involves a broad spectrum of inquiry into the rights and obligations of those involved in the conflict     

Measurement error and panel data1

The underidentification of linear models with measurement error does not necessarily extend to panel data models, as has been shown by GAiliches and Hausman (1986). We discuss and extend some of their results for a simple case and address particular issues concerning identification and asymptotic variances.     

Restricted maximum likelihood estimation under Eisenhart model Ill

For a balanced two-way mixed model, the maximum likelihood (ML) and restricted ML (REML) estimators of the variance components were obtained and compared under the non-negativity requirements of the variance components by L ee and K apadia (1984). In this note, for a mixed (random blocks) incomplete block model, explicit forms for the REML estimators of variance components are obtained. They are always non-negative and have smaller mean squared error (MSE) than the analysis of variance (AOV) estimators. The asymptotic sampling variances of the maximum likelihood (ML) estimators and the REML estimators are compared and the balanced incomplete block design (BIBD) is considered as a special case. The ML estimators are shown to have smaller asymptotic variances than the REML estimators, but a numerical result in the randomized complete block design (RCBD) demonstrated that the performances of the REML and ML estimators are not much different in the MSE sense.     

Postauditing capital assets and firm performance: An empirical investigation

The argument presented in this paper is that the adoption of sophisticated postaudit procedures should be associated with improved firm performance. Based on a matched-pair experimental design, utilizing the Wilcoxon matched-pairs signed-ranks test and a newly developed statistic to test for a change point, empirical evidence is provided to support this argument.