Babin, J. Jobu and Hussey, Andrew J. and Nikolsko-Rzhevskyy, Alex and Taylor, David, Beauty Premiums Among Academics (April 23, 2019). SSRN https://ssrn.com/abstract=3376925
Abstract: This paper examines the effects of instructors’ attractiveness on student evaluations of their teaching. We build on previous studies by holding both observed and unobserved characteristics of the instructor and classes constant, capitalizing on a unique panel dataset of instructor evaluations. Our identification strategy exploits the fact that the same faculty, in addition to traditional teaching in the classroom, often also teach in the online environment, where attractiveness is either unknown or less salient. We utilize multiple attractiveness measures, including facial symmetry software, subjective evaluations, and a novel, proxy methodology that resembles a “Keynesian Beauty Contest.” We identify a substantial beauty premium in face-to-face classes for women but not for men. While gender on its own does not impact teaching evaluation scores, female instructors rated as more attractive receive higher instructional ratings. This result holds across several beauty measures, given a multitude of controls and while controlling for unobserved instructor characteristics and skills. Notably, the positive relationship between beauty and teaching effectiveness is not found in the online environment, suggesting the observed premium may be due to taste-based discrimination.
Keywords: Beauty premium, Discrimination, College teaching, Gender gap
JEL Classification: J70, I29, D90
Wednesday, May 15, 2019
Progressive Policy Institute: 21st century school systems, founded upon the four pillars of school autonomy, accountability for performance, diversity of school designs, and parental choice
Do-Something Congress No. 10: Fighting Inequality by Reinventing America's Schools. David Osborne, Emily Langhorne, Associate Director. Progressive Policy Institute, May 15 2019. https://www.progressivepolicy.org/projects/reinventing-americas-schools/do-something-congress-no-10-fighting-inequality-by-reinventing-americas-schools/
Progressives are rightly concerned about inequality, but some overlook the crucial role that underperforming public schools play in perpetuating poverty and inequality in America. The poor quality of many school systems is a serious impediment to social mobility for children from low-income and minority families, who can’t easily pick up and move to communities with good schools. The number of students taking college remediation classes has soared, and too many students graduate high school underprepared to enter either college or the workforce.
First-rate schools are key to delivering on America’s core promise of equal opportunity. That’s true for U.S. students everywhere – not just for kids trapped in poor schools in poor communities. In international comparisons, even students from America’s best suburban school districts consistently score below students from other advanced countries in Asia and Europe.
America’s public education system was designed for the Industrial Era. The centralized, bureaucratic approach that we inherited from the 20th century no longer works for the majority of America’s students. We need a new model, and fortunately one is emerging from cities that have embraced profound systems change, including New Orleans, Denver, Washington, D.C., and Camden, N.J. All have experienced rapidly improving student outcomes as a result.
These four cities are building 21st century school systems, founded upon the four pillars of school autonomy, accountability for performance, diversity of school designs, and parental choice. Essentially, 21st century school systems treat many of their public schools like charter schools, even if they call them “innovation schools,” “partnership schools,” or “Renaissance schools.”
Although transforming our K-12 education system to meet the needs of the modern era is primarily the responsible of state and local governments, Washington can play an important catalytic role by creating incentives for change. In particular, Congress can create and for districts that create autonomous schools, hold schools accountable for performance, and replace failing schools.
[full report at the link above]
Progressives are rightly concerned about inequality, but some overlook the crucial role that underperforming public schools play in perpetuating poverty and inequality in America. The poor quality of many school systems is a serious impediment to social mobility for children from low-income and minority families, who can’t easily pick up and move to communities with good schools. The number of students taking college remediation classes has soared, and too many students graduate high school underprepared to enter either college or the workforce.
First-rate schools are key to delivering on America’s core promise of equal opportunity. That’s true for U.S. students everywhere – not just for kids trapped in poor schools in poor communities. In international comparisons, even students from America’s best suburban school districts consistently score below students from other advanced countries in Asia and Europe.
America’s public education system was designed for the Industrial Era. The centralized, bureaucratic approach that we inherited from the 20th century no longer works for the majority of America’s students. We need a new model, and fortunately one is emerging from cities that have embraced profound systems change, including New Orleans, Denver, Washington, D.C., and Camden, N.J. All have experienced rapidly improving student outcomes as a result.
These four cities are building 21st century school systems, founded upon the four pillars of school autonomy, accountability for performance, diversity of school designs, and parental choice. Essentially, 21st century school systems treat many of their public schools like charter schools, even if they call them “innovation schools,” “partnership schools,” or “Renaissance schools.”
Although transforming our K-12 education system to meet the needs of the modern era is primarily the responsible of state and local governments, Washington can play an important catalytic role by creating incentives for change. In particular, Congress can create and for districts that create autonomous schools, hold schools accountable for performance, and replace failing schools.
[full report at the link above]
We found that social media use is not, in and of itself, a strong predictor of life satisfaction across the adolescent population: Social media effects are nuanced, small at best, reciprocal over time, gender specific
Social media’s enduring effect on adolescent life satisfaction. Amy Orben, Tobias Dienlin, and Andrew K. Przybylski. Proceedings of the National Academy of Sciences, May 6, 2019. https://doi.org/10.1073/pnas.1902058116
Abstract: In this study, we used large-scale representative panel data to disentangle the between-person and within-person relations linking adolescent social media use and well-being. We found that social media use is not, in and of itself, a strong predictor of life satisfaction across the adolescent population. Instead, social media effects are nuanced, small at best, reciprocal over time, gender specific, and contingent on analytic methods.
Keywords: social mediaadolescentslife satisfactionlongitudinalrandom-intercept cross-lagged panel models
Abstract: In this study, we used large-scale representative panel data to disentangle the between-person and within-person relations linking adolescent social media use and well-being. We found that social media use is not, in and of itself, a strong predictor of life satisfaction across the adolescent population. Instead, social media effects are nuanced, small at best, reciprocal over time, gender specific, and contingent on analytic methods.
Keywords: social mediaadolescentslife satisfactionlongitudinalrandom-intercept cross-lagged panel models
Fewer men (39.1%) than women (80.3%) reported removing some of their pubic hair; the practice was associated with age, sexual activity, relationship status, & partner’s PHR practice & expectations
“To Shave or Not to Shave”: Pubic Hair Removal and Its Association with Relational and Sexual Satisfaction in Women and Men. Paul Enzlin et al. The Journal of Sexual Medicine, May 15 2019. https://doi.org/10.1016/j.jsxm.2019.04.005
Abstract
Background: Pubic hair removal (PHR) is a widespread practice that entails certain health risks; however, there remains a lack of scientific information on the prevalence and antecedents of PHR, as well as on its association with sexual behavior and relational satisfaction.
Aims: To explore women’s and men’s attitudes regarding PHR and their PHR practices and the associations with demographic, relational, and sexual characteristics.
Methods: A total of 2,687 men and 1,735 women living in Flanders (the Northern part of Belgium) completed an online survey. Participants ranged in age from 15 to 60+ years; they self-identified as heterosexual, bisexual, or homosexual and reported various relationship statuses.
Main Outcome Measures: Demographic items (ie, age, religion, partner relationship status), sexuality-related items (ie, sexual activity, sexual orientation, age at first intercourse, number of sexual partners), PHR items (ie, reasons, inclination to have or not have sex after PHR, perceived partner preferences, partner’s PHR), and relationship satisfaction, assessed with the Maudsley Marital Questionnaire.
Results: Fewer men (39.1%) than women (80.3%) reported (partially) removing their pubic hair. In both men and women, the practice was associated with age, sexual activity, relationship status, and partner’s PHR practice and expectations. In men, sexual and relationship satisfaction were correlated with their partner’s PHR practices and whether these were in line with the men’s expectations. In women, sexual and relationship satisfaction were mostly correlated with whether both partner’s expectations were met. Although both men and women reported that the reasons for PHR were related to their sexual experiences and to their partner’s preference, only women reported that PHR was a way to enhance feelings of femininity. Finally, the reasons for not engaging in PHR were related to partner preferences and side effects.
Conclusion: PHR is a widespread practice and seems strongly associated with personal, partner-related, sexual, and relational factors. Strategies to prevent men and women from being confronted with health risks should take all these factors into account.
Abstract
Background: Pubic hair removal (PHR) is a widespread practice that entails certain health risks; however, there remains a lack of scientific information on the prevalence and antecedents of PHR, as well as on its association with sexual behavior and relational satisfaction.
Aims: To explore women’s and men’s attitudes regarding PHR and their PHR practices and the associations with demographic, relational, and sexual characteristics.
Methods: A total of 2,687 men and 1,735 women living in Flanders (the Northern part of Belgium) completed an online survey. Participants ranged in age from 15 to 60+ years; they self-identified as heterosexual, bisexual, or homosexual and reported various relationship statuses.
Main Outcome Measures: Demographic items (ie, age, religion, partner relationship status), sexuality-related items (ie, sexual activity, sexual orientation, age at first intercourse, number of sexual partners), PHR items (ie, reasons, inclination to have or not have sex after PHR, perceived partner preferences, partner’s PHR), and relationship satisfaction, assessed with the Maudsley Marital Questionnaire.
Results: Fewer men (39.1%) than women (80.3%) reported (partially) removing their pubic hair. In both men and women, the practice was associated with age, sexual activity, relationship status, and partner’s PHR practice and expectations. In men, sexual and relationship satisfaction were correlated with their partner’s PHR practices and whether these were in line with the men’s expectations. In women, sexual and relationship satisfaction were mostly correlated with whether both partner’s expectations were met. Although both men and women reported that the reasons for PHR were related to their sexual experiences and to their partner’s preference, only women reported that PHR was a way to enhance feelings of femininity. Finally, the reasons for not engaging in PHR were related to partner preferences and side effects.
Conclusion: PHR is a widespread practice and seems strongly associated with personal, partner-related, sexual, and relational factors. Strategies to prevent men and women from being confronted with health risks should take all these factors into account.
Could this be useful to design strategies for humans? Voluntary wheel running reduces weight gain in mice by decreasing high-fat food consumption
Voluntary wheel running reduces weight gain in mice by decreasing high-fat food consumption. Joshua Cordeira, Daniel Monahan. Physiology & Behavior, Volume 207, 1 August 2019, Pages 1-6. https://doi.org/10.1016/j.physbeh.2019.04.019
Highlights
• Wheel running for 30 min on 5 days per week reduced weight gain and adiposity
• Wheel running decreased energy intake from high-fat food, but not standard chow
• Pair-feeding reduced weight gain and adiposity to the same extent as wheel running
Abstract: We investigated whether wheel running for just 30 min on 5 days each week, an exercise routine based on recommended levels of physical activity for adults, regulates body weight and food intake in mice. Male C57BL/6 mice were divided into groups and given ad libitum access to high-fat food and standard chow or standard chow only. For 30 min on 5 days each week, mice were treated with an in-cage running wheel which was either open to allow voluntary exercise or locked and could not rotate for control. Wheel running reduced weight gain and fat mass among mice fed high-fat food and standard chow, but not mice fed standard chow only. Wheel running decreased high-fat food consumption. Standard chow intake was unchanged. Mice provided with a locked running wheel but pair-fed the same amount of food as wheel running mice also displayed reduced weight gain and fat mass. We conclude that voluntary wheel running for 30 min on 5 days each week reduced weight gain and fat mass in mice by preferentially decreasing high-fat food intake. This model of voluntary wheel running can be used to investigate mechanisms underlying the benefits of exercise on body weight and food intake, informing obesity intervention strategies for humans.
Highlights
• Wheel running for 30 min on 5 days per week reduced weight gain and adiposity
• Wheel running decreased energy intake from high-fat food, but not standard chow
• Pair-feeding reduced weight gain and adiposity to the same extent as wheel running
Abstract: We investigated whether wheel running for just 30 min on 5 days each week, an exercise routine based on recommended levels of physical activity for adults, regulates body weight and food intake in mice. Male C57BL/6 mice were divided into groups and given ad libitum access to high-fat food and standard chow or standard chow only. For 30 min on 5 days each week, mice were treated with an in-cage running wheel which was either open to allow voluntary exercise or locked and could not rotate for control. Wheel running reduced weight gain and fat mass among mice fed high-fat food and standard chow, but not mice fed standard chow only. Wheel running decreased high-fat food consumption. Standard chow intake was unchanged. Mice provided with a locked running wheel but pair-fed the same amount of food as wheel running mice also displayed reduced weight gain and fat mass. We conclude that voluntary wheel running for 30 min on 5 days each week reduced weight gain and fat mass in mice by preferentially decreasing high-fat food intake. This model of voluntary wheel running can be used to investigate mechanisms underlying the benefits of exercise on body weight and food intake, informing obesity intervention strategies for humans.
Unfragranced body odours of real partners are judged more similar than fake couples; no such difference for fragranced body odour; hormonal contraceptives may influence initial odour-mediated assortment
Evidence for odour-mediated assortative mating in humans: The impact of hormonal contraception and artificial fragrances. CarolineAllen et al. Physiology & Behavior, May 15 2019. https://doi.org/10.1016/j.physbeh.2019.05.002
Highlights
• Unfragranced body odours of real partners are judged more similar than fake couples.
• There was no such difference for fragranced body odour samples.
• Hormonal contraceptives may influence initial odour-mediated assortment.
• There was a sex difference in favourability of odour similarity within couples.
• Similarity ratings correlated with some verbal labels described by perfumers.
Abstract
There is substantial evidence for assortative partner preferences in humans based on physical characteristics. In contrast, evidence suggests that olfactory preferences tend to be disassortative, with people preferring body odour of potential partners who are dissimilar at key genetic loci, perhaps to gain fitness advantage through offspring heterozygosity. We compared ratings of perceived body odour similarity of real couples with those of randomly paired ‘fake’ couples. Contrary to prediction, we find that odours of real partners are perceived more, rather than less, similar to each other than fake couples. However, this applied only to natural odour samples: there were no differences in similarity levels of real and fake couples' samples which were collected while wearing artificial fragrances. Furthermore, in light of suggestions that hormonal contraception (HC) disrupts disassortative odour preferences in women, we compared odour similarity among real couples in which the female partner was using or not using HC at the time when the relationship began. We find that odours of HC-using couples are of intermediate similarity between non-using and fake couples, suggesting that HC use during partner choice could affect odour-influenced assortment. We also examined the association between relationship satisfaction and perceived similarity of unfragranced odours of real couples. We found that these are positively correlated in male partners but negatively correlated in the female partners, indicative of a sex difference in the relative favourability of odour similarity in partner preference. Finally, by comparing odour similarity ratings with those given by perfumers using a novel olfactory lexicon we found evidence that similarity judgements were based on the Spicy/Animalic aspects of individual odour profiles. Taken together, our results challenge the conventional view that odour-mediated partner preferences in humans are typically disassortative.
Highlights
• Unfragranced body odours of real partners are judged more similar than fake couples.
• There was no such difference for fragranced body odour samples.
• Hormonal contraceptives may influence initial odour-mediated assortment.
• There was a sex difference in favourability of odour similarity within couples.
• Similarity ratings correlated with some verbal labels described by perfumers.
Abstract
There is substantial evidence for assortative partner preferences in humans based on physical characteristics. In contrast, evidence suggests that olfactory preferences tend to be disassortative, with people preferring body odour of potential partners who are dissimilar at key genetic loci, perhaps to gain fitness advantage through offspring heterozygosity. We compared ratings of perceived body odour similarity of real couples with those of randomly paired ‘fake’ couples. Contrary to prediction, we find that odours of real partners are perceived more, rather than less, similar to each other than fake couples. However, this applied only to natural odour samples: there were no differences in similarity levels of real and fake couples' samples which were collected while wearing artificial fragrances. Furthermore, in light of suggestions that hormonal contraception (HC) disrupts disassortative odour preferences in women, we compared odour similarity among real couples in which the female partner was using or not using HC at the time when the relationship began. We find that odours of HC-using couples are of intermediate similarity between non-using and fake couples, suggesting that HC use during partner choice could affect odour-influenced assortment. We also examined the association between relationship satisfaction and perceived similarity of unfragranced odours of real couples. We found that these are positively correlated in male partners but negatively correlated in the female partners, indicative of a sex difference in the relative favourability of odour similarity in partner preference. Finally, by comparing odour similarity ratings with those given by perfumers using a novel olfactory lexicon we found evidence that similarity judgements were based on the Spicy/Animalic aspects of individual odour profiles. Taken together, our results challenge the conventional view that odour-mediated partner preferences in humans are typically disassortative.
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