Florence Neymotin

Iron and Obesity in Females in the United States

Since the late 1980s, the United States has witnessed a dramatic increase in average BMI levels and the proportion of individuals categorized as obese. Obesity is a major risk factor for a variety of illnesses, and an increase in obesity is, therefore, implicated in increased health‐care costs in the United States. These ultimately translate to a major health and economic problem for the United States. The present analysis examines a pathway to increased levels of obesity as of yet almost entirely unexplored. Specifically, we examine the relationship between obesity and iron deficiency via analyses of blood samples. The current analysis employs public‐use data files from the continuous National Health and Nutrition Examination Survey (NHANES) (1999–2006) survey to determine the relationship between obesity and an individuals iron blood content. Results suggest a negative relationship between levels of iron blood content and individual BMI after controlling for other individual characteristics. These results hold for nearly all eight panels tested in the ordinary least squares (OLS) regressions.

The Relationship between School Funding and Student Achievement in Kansas Public Schools

Recent changes in public school educational finance in the state of Kansas are shown to have had little positive effect on student educational achievement. A differences structure is used to determine the effect of changes in revenue per student at the district level on changes in measures of student achievement. Measures of achievement employed in the analysis are student test scores in math and reading, as well as various measures of student persistence in schooling.

Religiosity and adolescents' involvement with both drugs and sex.

Previous research has shown that religion reduces adolescents’ risk of substance use, while having little impact on sexual risk-taking. However, few studies have examined how religion might mitigate adolescents’ involvement with both drugs and sex. Using the Child Development Supplement (CDS) in combination with the Panel Study of Income Dynamics (PSID), we fill this gap by determining how adolescents’ involvement with both drugs and sex is related to religiosity. We find the statistically significant relationship between religiosity and adolescents’ involvement in both risk behaviors is accounted for by school attachment, but the relationship between religiosity and drugs is robust.

Locus of Control and Obesity

In the developed world, the hazards associated with obesity have largely outstripped the risk of starvation. Obesity remains a difficult public health issue to address, due in large part to the many disciplines involved. A full understanding requires knowledge in the fields of genetics, endocrinology, psychology, sociology, economics, and public policy – among others. In this short review, which serves as an introduction to the Frontiers in Endocrinology research topic, we address one cross-disciplinary relationship: the interaction between the hunger/satiation neural circuitry, an individual’s perceived locus of control, and the risk for obesity. Mammals have evolved a complex system for modulating energy intake. Overlaid on this, in humans, there exists a wide variation in “perceived locus of control” – that is, the extent to which an individual believes to be in charge of the events that affect them. Whether one has primarily an internal or external locus of control itself affects, and is affected by, external and physiological factors and has been correlated with the risk for obesity. Thus, the path from hunger and satiation to an individual’s actual behavior may often be moderated by psychological factors, included among which is locus of control.

Enclaves and entrepreneurial success

Purpose - – The purpose of this paper is to examine the effect of immigrant and ethnic enclaves on the success of entrepreneurial ventures as measured by firm profits and viability. Design/methodology/approach - – Data on entrepreneurs and their new firms were provided by the Kauffman Foundation and covered the years 2004-2008. These firm-level data were linked to Census 2000 Summary Files at the ZIP Code level and were used to empirically investigate the effect of enclaves. Findings - – The paper found a statistically significant negative effect of immigrant representation in an area on firm profitability. This effect operated on native, rather than immigrant, firm owners, which suggested that native-owned firms locating in immigrant enclaves may experience difficulty assimilating the benefits that enclaves offer. Practical implications - – Cultural connections within local communities play a key role in the success of new businesses. Potential firms should recognize the importance of these connections when making firm location decisions. Likewise, the findings suggest that connections within local communities should be considered when designing aid programs. Originality/value - – The authors used a unique measure of enclave representation to incorporate both immigrant, as well as ethnic, representation in the local area. The authors examined the effect of immigration on both immigrant- and native-owned firms in order to provide a broader scope and a more complete understanding of the effects of immigration on entrepreneurial ventures.

International Involvement and Production Efficiency among Startup Firms

Abstract The economic theory of small firms often requires a reasoning process distinct from those typically used for large multinational enterprises (MNEs), since small firms typically do not possess the resources MNEs commonly employ to outperform similar domestic firms. In the current analysis, we argue that new small firms with international sales can better predict their revenue stream than can comparably aged firms with only domestic sales, and, as a result, international selling firms have higher levels of technical productive efficiency. We employ 7829 firm-year observations from the 2007 to 2011 years of the Kauffman Firm Survey microdata sample in our analysis. A stochastic frontier model empirically supports the result that technical productive efficiency is positively related to the foreign sales ratio. These results hold after controlling for multiple relevant owner and firm characteristics, as well as accounting for potential endogeneity concerns.

Adolescent Obesity: A Barrier to Mate Selection?

The obesity epidemic is a barrier to the participation of adolescents in developmentally normative behaviors associated with mate selection, such as dating. Notably, the obesity stigma has important implications for the socioemotional development of adolescents in the realms of intimacy and peer acceptance, as well as for their future chances of marriage and healthy relationships.

Young Startup Firm Exports and Productive Efficiency

ABSTRACT We employ the United States Census Bureau’s 2007 Survey of Business Owners to examine the relationship between the productive efficiency of startup firms and their level of exports. We find, consistent with previous work in the literature, that a small firm’s exports are positively related to their level of productive efficiency. This result holds after controlling for various individual owner, as well as firm, characteristics. Our results are also robust to the inclusion of a two-stage estimation strategy to control for the effects of endogeneity in the efficiency–exports relationship.

Entrepreneurial overconfidence and firm survival: an analysis using the Kauffman firm survey

ABSTRACT We used the Kauffman Firm Survey of ventures founded in the year 2004 to identify overconfident (OC) entrepreneurs and found, contrary to the existing literature, that the hazard ratio for these entrepreneurs was lower than the corresponding value for their non-OC peers. We categorized an entrepreneur as OC if he or she believed that his or her firm enjoys a competitive advantage over its industry peers, while simultaneously underperforming relative to the industry in terms of average initial ROA. Specifically, we looked at the average ROA during the years 2004–2007 and compared it to the industry median. In addition to our hazard findings, we discovered that these OC entrepreneurs, while starting with lower initial ROA levels relative to their industry peers, may have enjoyed slightly better movement in ROA over the intervening years. Our results are explained in the context of the psychological literature on optimism.

Credit unions during the crisis: did they provide liquidity?

ABSTRACT We use the consumer finance monthly national survey to demonstrate that credit unions (CUs) in the United States did little to help consumers obtain a home equity line of credit (HELOC) during the recent financial crisis. Our results hold after including a two-stage regression structure using the availability of CUs as the identifying instrument, as well as employing a Heckman correction procedure to adjust for sample selection bias. We find that during the financial crisis, CUs were no more likely than other depositary institutions to extend HELOCs either in areas experiencing housing price declines or to lower income households. Our results provide an empirical counterpoint to those who have lauded CUs for providing liquidity during times of crisis or for serving consumers who would otherwise be challenged to obtain funds.