Toward sustainable practices in technology education

This paper discusses the problematic relationship between technology education, consumption and environmental sustainability. The emerging global sustainability crisis demands an educational response that moves beyond mere ‘tinkering’ with classroom practices, toward technology education which embraces life cycle thinking and ‘eco-innovation’. It will argue that the urgent transformation to technology education for sustainability citizenship must begin with a critical examination of existing practices and assumptions which underpin unsustainability. The initial context for this discussion will be technological education in Canada and the United States, in particular a recent national report on the assessment of technological literacy. The paper concludes by suggesting several ‘new paths’ forward to move technology education toward more sustainable practices and more relevance for young people.     

Spectrum management reform: Rethinking practices

Unparalleled growth in wireless communications has increased the pressure for more spectrum to support more users, more uses and more capacity. To alleviate that pressure, major regulatory changes were introduced in several countries in two key areas of spectrum management, namely spectrum assignment and allocation. This paper analyzes those changes and discusses strategies and tactics for deregulating the use of radio spectrum. Spectrum management reforms are considered within the theoretical framework of transition economics, which is concerned with optimal reform speed and sequencing. The paper shows how Anglo-Saxon and European countries have been implementing gradual reforms. Meanwhile, Central American reformers have chosen a fast transition from command-and-control regulation to market mechanisms. Transition economics is used to evaluate the advantages and drawbacks of different spectrum reform strategies.     

The standardized effect of a compound of dummy variables or polynomial terms

A method is proposed to obtain standardized regression coefficients for composite variables made up of dummy variables or polynomial terms. The method to be described enables the researcher to compare the effect of the composite variable with the effects of other predictor variables. Forming a composite variable is particularly useful in polynomial regression where individual regression coefficients are hard to interpret. A second application is assessing the impact of a compound of dummy variables. An empirical example dealing with the curvilinear relationship between church involvement and prejudice is used to illustrate the approach.     

Production Efficiency and Discriminatory Hiring Practices in the National Hockey League: A Stochastic Frontier Approach

This paper studies the production process in the National Hockey League (NHL) and attempts to identify the sources of production inefficiency, including potential inefficiencies associated with preferences for, or against French-Canadians. Employing the method of stochastic frontier estimation, it is shown that production inefficiencies are prevalent in the NHL and can, in part, be traced to differences in coaching ability, team ownership, local sports competition, and management experience. In addition, it is found that teams with unusually high (or low) numbers of French-Canadian players tended to be less efficient, implying that discriminating hiring practices are costly.Jel Classifications: D21, J71, L83     

Teacher’s Interpretation of Sustainable Development

This paper describes an exploratory research project conducted with forty-five technological studies teachers in Ontario concerning their understanding and perceptions of the concept of sustainable development. The results indicate that pre-service teacher education programs need to spend more.     

Inflation and Default Dynamics

Changes in inflation, particularly if they are sharp, can have important consequences for nominal contracts, especially debt instruments such as fixed-rate bonds. This paper examines the intricate dynamics of inflation and defaults. The experience of the United States during the past four decades is subjected to empirical analysis to examine how the nature of the relationship changed as we shifted from a high inflation to a low inflation regime. The paper is organized as a three-part study. We initially examine the U.S. default experience, as summarized in Moody's speculative grade default rate, along with industry differences. The paper then scrutinizes U.S. inflation dynamics as seen in different summary measures of the general price level and delves into pricing power issues. The study proceeds to examine co-movements in the inflation and default series from a theoretical and empirical standpoint and the results confirm the intuitive postulate: higher the inflation rate, the more pricing power companies have; greater pricing power leads to, better earnings and repayment abilities for firms and a lower incidence of defaults.     

Indeterminacy of intertemporal equilibria under imperfect competition

Summary. It is known that overlapping generations models with imperfectly competitive firms may exhibit a continuum of stationary equilibria. The reason of this indeterminacy is that different price expectation functions of consumers lead to different objective demand functions against which firms maximize. All these expectation functions fulfill perfect foresight in the equilibrium, but they can be arbitrary off the equilibrium. In this paper it is shown that it is not this arbitrariness which is responsible for the indeterminacy, but that the continuum of stationary equilibria emerges even if expectation functions are rational. Received: March 25, 1999; revised version: February 16, 2000