The asymptotic behaviour of the residual sum of squares in models with multiple break points

ABSTRACT

Models with multiple discrete breaks in parameters are usually estimated via least squares. This paper, first, derives the asymptotic expectation of the residual sum of squares and shows that the number of estimated break points and the number of regression parameters affect the expectation differently. Second, we propose a statistic for testing the joint hypothesis that the breaks occur at specified points in the sample. Our analytical results cover models estimated by the ordinary, nonlinear, and two-stage least squares. An application to U.S. monetary policy rejects the assumption that breaks are associated with changes in the chair of the Fed.     

Modeling binary responses with stochastic covariates

In a traditional binary regression model, covariates are assumed to be fixed by design. In practice, however, they are most likely to be stochastic and non-normally distributed. We develop modified maximum likelihood estimators for such situations. We show that these estimators are more efficient than the traditional binary regression estimators and robust to data anomalies. We illustrate our results using a real life example.     

Women's desire for the kaleidoscope of authenticity,balance and challenge: A multi‐method study of female health workers’ careers

Improved health care and increased life expectancy have extended working lives and changed the nature of work for many women. The aim of this research is to explore women's kaleidoscope career intentions of authenticity, balance and challenge, and understand the impact of life roles on their career choices. The research comprises two studies. In Study 1, interviews with 14 female hospital pharmacists demonstrate how their desire to increase non‐work life roles while caring for ageing parents has influence over their career choices. In Study 2, a survey of 178 female direct care workers confirms life roles’ impact on their kaleidoscope career intentions. Findings demonstrate that different life roles strongly influence women's career choices in a number of ways, primarily their desire to increase their leisure and engagement with activities outside work. In later life, carer responsibilities play an influential role in female career choices, particularly those related to eldercare. Finally, kaleidoscope career intentions may be influenced by life roles. These findings have considerable implications for both the expansion of careers and gender theory, and development of public and business policies aimed at attracting and retaining human resources.     

Pathways to pleasure: Older adult women’s reflections on being sexual beings

Older adult women make up a growing part of the population, and yet literature on the sexual activity over their life spans is lacking. This qualitative interview study explored the experience of 16 women aged 57–91 to better understand sexual pleasure over a lifetime. The participants described having to challenge cultural rules to create a supportive environment for sexual expression. Having access to Novel contexts in which to learn, cultivating Intimacy with partners and with oneself, being Creative with sexual activities, and Extending one’s sense of sexual possibility into advanced age (NICE) supported sexual pleasure as women aged.     

Critical research and entrepreneurship: A cross-disciplinary conceptual typology

Critical perspectives of entrepreneurship have gained increasing traction over the last two decades. The transformative potential of critical research resides in challenging some of entrepreneurship research's epistemological, ontological and theoretical assumptions, with a view to offering a range of alternatives. Critical research in entrepreneurship has remained fragmented, however, due to its heterogeneous theoretical lineages and compartmentalized and niche interests. Addressing this situation, our objective is to intensify the space of critique in entrepreneurship research by offering a theoretically informed typology that delineates different manifestations of ‘criticalness’. Our overarching contribution is to advance a typology distinguishing four ideal types of critical entrepreneurship research based on evaluative emphases (referred to as ‘valence’) and the meta-theoretical assumptions informing its critical operation (called ‘paradigmatic orientation’). By demonstrating the variegated political, ethical and ideological interests and preoccupations that critical studies serve within different management sub-disciplines, the typology provides a conceptual vocabulary for making sense of and synthesizing critical perspectives across scholarly boundaries. Also, it helps to reposition understandings of critique as gestures of negativity by stimulating a greater appreciation of the generative potential of critique and the theoretical and philosophical possibilities that this can bring to our scholarly community.     

Women as Farm Landlords: Does Gender Affect Environmental Decision-Making on Leased Land?

The 1988 Agricultural Economics and Land Ownership Survey allows a more thorough analysis of the role of women as farmland owners. Women farmland owners are predominately nonoperators—that is, they rent their land to others. This analysis focuses on whether gender affects landlord participation in the selection of fertilizer and chemicals on leased land. Findings indicate that women landlords are less likely than men to participate in this management decision.     

Talk and travel

Denise Lievesley explains how she came to be in her present post as Director of the Institute for Statistics at UNESCO and describes some aspects of the job which she finds particularly challenging.     

Puerto Rican drug users experiences of physical and sexual abuse: comparisons based on sexual identities

This study integrates the results of quantitative and qualitative methods to elucidate the association between sexual identity and physical and sexual abuse among Puerto Rican drug users. A structured questionnaire was administered to 800 subjects in New York and 399 in Puerto Rico. A total of 93 subjects (7.9%) self-identified as homosexual or bisexual. Gay males were significantly more likely than heterosexual males to report first occurrence of physical abuse by a family member in childhood. Both gay and bisexual males were more likely than their heterosexual counterparts to report first experiencing unwanted sex in childhood and intimate partner physical abuse later in life. Lesbians were more likely than female heterosexuals to report unwanted sex in childhood. Qualitative data were collected through in-depth life histories with 21 subjects and suggest that gay and lesbian subjects perceive antihomosexual prejudice on the part of family members as one cause of childhood physical and sexual abuse.