Mathematical College Majors and the Gender Gap in Wages

College graduates with mathematical college majors earn more than other college graduates. Women are less likely than men to pursue mathematical college majors. This does not, however, explain the entire gender wage differential. In a representative cross section of recent college graduates, women earn 9 percent less than men with equally mathematical college majors. The gender wage disadvantage faced by women with technical college majors is no larger than that faced by women with nontechnical college majors.     

The wandering weekday effect in major stock markets

This paper reports a wandering weekday effect: the pattern of day seasonality in stock market returns is not fixed, as assumed in the Monday or weekend effects, but changes over time. Analysing daily closing prices in eleven major stock markets during 1993–2007, our results show that the wandering weekday is not conditional on average returns in the previous week (the “twist” in the Monday effect). Nor does it diminish through the period of analysis. The results have important implications for market efficiency, and help to reconcile mixed findings in previous studies, including the reported disappearance of the weekday effect in recent years.     

Positioning codes of ethics on international corporations' websites: A six-year longitudinal study

This research examines the level of international website disclosures of corporate codes of ethics during the period of July 2002 and July 2003, which surrounds the enactment of the Sarbanes-Oxley Act (SOX) in United States. We also gathered similar data from these corporations' websites in April of 2006 through April of 2008 (i.e., three through five years after the effective date of SOX). In April of 2006 (2007 and 2008), 30 (34 and 36) of the 43 corporations listed on the New York Stock Exchange (NYSE) had readily available codes. While not required to have their codes on their corporate websites, 14 (18 and 23) of the 49 corporations that were not listed on the NYSE also had readily available codes. Our research also indicates that corporations headquartered in Europe were more likely to have readily available codes of ethics than corporations headquartered in the Pacific region in 2006 and 2007 but not in 2008.     

Insights from images posted on social media: Examining the motivations of volunteer tourists

Extensive research has been conducted on the motivations of volunteer tourists; however, the scope has not included how motivation is expressed through the posting of images on social media. This study examines the relationship between volunteer tourists’ motivations and social media use through the identification of picture publishing behavior based on motivations. An online survey yielding 260 complete responses is used and statistical tests investigate the relationship between demographic factors, motivations and social sharing of photos. The results show that demographics have little impact; however, there is a relationship between motivation and photo sharing and between motivation and volume of photos.     

Build it and they will come: Volunteer opportunities and volunteering

Formal volunteering refers to an individual's unpaid contribution of time to the activities of a charitable or non-profit organization. While the physical presence of these organizations is usually required for citizens who want to volunteer, neighbourhoods vary with respect to the amount of volunteering opportunities available. We are the first to geo-code information on the location of registered charities and the location of individuals, using full six-digit postal codes, to examine how the physical proximity of charities affects the decision to volunteer. We carefully address the possibility that proximity to charities might be endogenous: organizations and volunteers may respond to similar unobservable factors when deciding where to locate. Our results imply that access does matter for the decision to volunteer: one more charity within a 1 km buffer around an individual's residence increases the predicted probability of volunteering by 0.8%. The impact of an additional charity on the likelihood of volunteering decreases with distance from the individual's residence and is more pronounced for urban dwellers, providing further evidence that the location of charities matters when it comes to nudging individuals to volunteer.     

Innovation in Labour Organisation and Social Conditionality: Implications for Farm Advisory Services

There is growing concern about the evolution of working conditions for employees on European farms. In the new Common Agriculture Policy (CAP), financial support to farmers will soon be subject to a social conditionality clause. As a result of this change in CAP regulations, in this paper we ask if the need for specific advice can already be foreseen? Examining recent investigations that focused on new forms of labour organisations on farms can help to answer this question. Investigations were conducted across France, combining qualitative field studies with a comprehensive analysis of statistical and administrative data. The results show a growing complexity of farm labour organisation that generates needs for new types of advice. In particular, an increasing proportion of the people working on farms are employed by another organisation (foreign and domestic service providers, employers’ alliances, etc.). The administrative data provides strong evidence of the scale of this trend which has little visibility in the agricultural census data. We should therefore be cautious about oversimplified representations of labour patterns at farm level. They can distort policy design, implementation and assessment by overlooking a part of the worker population and needs for new types of advice, including those that will be required to meet social conditionality requirements.     

Subsidizing unit donations: matches,rebates, and discounts compared

Experimental Economics - An influential result in the literature on charitable giving is that matching subsidies dominate rebate subsidies in raising funds. We investigate whether this result...     

Having less: A personal project taxonomy of consumers' decluttering orientations,motives and emotions

This study examines consumers' orientations toward decluttering and what differentiates consumers' engagement with decluttering as a routine social practice. An internet survey was conducted with a convenience sample of 172 adult consumers who recently engaged in home decluttering projects. Cluster analysis used appraisals of personal project dimensions to create a taxonomy in which we identified three orientations toward decluttering: disengaged, enthusiastic, and challenged. Subsequent analyses compared appraisals of success and affective and motivational differences across the three orientations. Findings reveal that decluttering is enjoyable, easy, and most successful for consumers with an enthusiastic orientation who intrinsically value decluttering and link it to self-identify. Those who lack time or adequate control experience more stress and less success. Circumstances, and especially normative pressures, seemed to drive these orientations. All orientations experienced relatively high positive emotions after decluttering, which substantiates the positive influence of decluttering on emotional well-being.