Reasons for (Non)engagement in Infidelity

This investigation examined reasons for (un)faithfulness. Driven by interdependence theory, data from 220 undergraduates at a southwestern U.S. university indicate that men have more relational alternatives than women and individuals’ relational investments tied to relational stage as well as length of relationship. Significant predictors of infidelity among men and women are quality of alternatives, believing that sex occurs early in a relationship, and having been cheated on (applied to men only). Quality of alternatives predicted cheating among seriously dating individuals, whereas marrieds reported the strongest predictor of cheating as being cheated on. Fear of sanctions related to cheating but not to commitment. Legal sanctions motivated monogamy for men but not women. Participants reported over 500 reasons to remain faithful and over 1,000 reasons to cheat.     

Parenting experiences of three self‐identified gay fathers

There is an increasing number of self‐identified gay fathers or “out” gay men who have chosen to parent through such alternative means as adoption and surrogacy. In spite of their growing numbers, there has been little research on the experiences of gay fathers. Three self‐identified gay fathers volunteered to participate in the current study. The semi‐structured interviews focused on four areas: decision to parent, experience of fatherhood, relationships with children, and the coming‐out process. Participants were Caucasian, ranged in age from the mid‐30s to early 50s, and had either one or two children. Their children were either Caucasian or biracial and ranged in age from early infancy to seven years. Both single and partnered fathers were represented in the sample as was parenting through adoption and through surrogacy. The themes that emerged from the interviews are described below.     

Precision,bias, and uncertainty for state population forecasts: an exploratory analysis of time series models

Many researchers have used time series models to construct population forecasts and prediction intervals at the national level, but few have evaluated the accuracy of their forecasts or the out-of-sample validity of their prediction intervals. Fewer still have developed models for subnational areas. In this study, we develop and evaluate six ARIMA time series models for states in the United States. Using annual population estimates from 1900 to 2000 and a variety of launch years, base periods, and forecast horizons, we construct population forecasts for four states chosen to reflect a range of population size and growth rate characteristics. We compare these forecasts with population counts for the corresponding years and find precision, bias, and the width of prediction intervals to vary by state, launch year, model specification, base period, and forecast horizon. Furthermore, we find that prediction intervals based on some ARIMA models provide relatively accurate forecasts of the distribution of future population counts but prediction intervals based on other models do not. We conclude that there is some basis for optimism regarding the possibility that ARIMA models might be able to produce realistic prediction intervals to accompany population forecasts, but a great deal of work remains to be done before we can draw any firm conclusions.     

‘Gone,leave, go,move, vanish’: race,public space and (in)visibilities

This chapter is a discussion of the various ways Canadian-born young men of colour (aged 17–26) experience (in)visibilities in the public spaces of the Greater Toronto Area (GTA). I begin this chapter by analyzing the different ways ‘visibility’ and ‘invisibility’ have been conceptualized in the scholarly literature, including literatures on homelessness, public space, and race. Invisibilities include ‘invisible homelessness’ as well as material invisibilities in which young men of colour both purposefully and accidentally navigate public spaces in ways that affect whether they are seen or unseen and by whom. This research emphasizes the contingency and indeterminacy of varying (in)visibilities. Despite the various ways they move between visibility and invisibility in public spaces, young men of colour experiencing homelessness maintain an explicit presence in urban street spaces. Understanding their experiences of (in)visibility in urban space helps us understand the geographies of race and racism in the GTA and in North American cities more broadly.     

Marriage,partnership and sexual orientation: a study of British university academics and administrators

Using a unique data source on marital status, partnership and sexual orientation of academics and administrators at British universities, we estimate the impact of personal relationships upon earnings for men and women. While university data cover a relatively homogeneous group of workers, the two sides of the university are very different, with administrative jobs being more like the general job market in the economy. We find a large and significant married male premium, but only on the administrative side of the university. There is no female marriage premium, and no partnership return to gay men or to either heterosexual or homosexual women.

A Closed-Form Formula for an Option with Discrete and Continuous Barriers

This article presents a methodology to derive analytical formulas for a class of complicated financial derivatives with a continuously monitored barrier and a few discretely monitored ones. Numerical results based on concrete numbers for the parameters are presented and analyzed.     

Optimal Dynamic Pricing of Perishable Items by a Monopolist Facing Strategic Consumers

We introduce a dynamic pricing model for a monopolistic company selling a perishable product to a finite population of strategic consumers (customers who are aware that pricing is dynamic and may time their purchases strategically). This problem is modeled as a stochastic dynamic game in which the company's objective is to maximize total expected revenues, and each customer maximizes the expected present value of utility. We prove the existence of a unique subgame‐perfect equilibrium pricing policy, provide equilibrium optimality conditions for both customer and seller, and prove monotonicity results for special cases. We demonstrate through numerical examples that a company that ignores strategic consumer behavior may receive much lower total revenues than one that uses the strategic equilibrium pricing policy. We also show that, when the initial capacity is a decision variable, it can be used together with the appropriate pricing policy to effectively reduce the impact of strategic consumer behavior. The proposed model is computationally tractable for problems of realistic size.     

Enterprise Resource Planning (ERP) Competence Constructs: Two‐Stage Multi‐Item Scale Development and Validation*

This paper defines and operationalizes eight ERP competence constructs. We define ERP competence as a portfolio of managerial, technical and organizational skills and expertise posited as antecedents to improved business performance occurring after an ERP system is operational and functionally stable. To improve responses to changes in markets and products, manufacturers are increasingly adopting ERP systems. However, anecdotal accounts indicate that the realization of ERP's potential benefits is rare. Because of its pervasive influence on manufacturing and business performance, the need for scientifically developed and tested multi‐item scales pertaining to ERP competence is highly relevant to manufacturing strategy research. We follow a two‐stage normative process of scale development. First, we identify a portfolio of eight generic constructs that are hypothesized to be associated with successful ERP adoption. Each construct is then operationalized as a multi‐item measurement scale by applying a manual item sorting technique iteratively to independent panels of expert judges until tentative reliability and validity is established. Second, we further refine and validate the multi‐item scales using survey data from 79 North American manufacturing users of ERP systems.