Gender and entrepreneurial success: evidence from survey data

A wealth of studies have contributed to the literature on gender differences in entrepreneurial success, but most lack key controls that aid in determining that success. Scale of the entrepreneur’s business is often not accounted for, and no studies to the author’s knowledge approach the gender comparison by specifically utilizing a sample of entrepreneur-only managed businesses. This allows for a direct comparison between individual entrepreneurs’ performance by gender, without the confounding heterogeneity that workforces may introduce. Data are taken from a national US survey of individuals, and model specifications include a number of important but oftentimes unavailable controls that have never before been used in conjunction. Female and male entrepreneurial success are statistically equal after controlling for risk preferences, intelligence, start-up capital, prior industry experience and hours worked at the business. Alternative specifications and sensitivity checks confirm and expand on these results.     

Outcomes of tumor necrosis factor inhibitor cycling versus switching to a disease-modifying anti-rheumatic drug with a new mechanism of action among patients with rheumatoid arthritis

Objectives: To examine treatment patterns, treatment effectiveness, and treatment costs for 1 year after patients with rheumatoid arthritis switched from a tumor necrosis factor inhibitor (TNFi) (adalimumab, certolizumab pegol, etanercept, golimumab, or infliximab), either cycling to another TNFi (“TNFi cyclers”) or switching to a new mechanism of action (abatacept, tocilizumab, or tofacitinib) (“new MOA switchers”).

Methods: This retrospective cohort study used administrative claims data for a national insurer. Treatment persistence (without switching again, restarting, or discontinuing), treatment effectiveness (defined below), and costs were assessed for the 12-month post-switch period. Patients were “effectively treated” if they satisfied all six criteria for a treatment effectiveness algorithm (high adherence, no dose increase, no new conventional synthetic disease-modifying anti-rheumatic drug, no subsequent switch in therapy, no new/increased oral glucocorticoids, and <2 glucocorticoid injections). Multivariable logistic models were used to adjust for baseline factors.

Results: The database included 581 new MOA switchers and 935 TNFi cyclers. New MOA switchers were 39% more likely than TNFi cyclers to persist after the switch (odds ratio [OR]?=?1.39; 95% confidence interval [CI]?=?1.12–1.74; p?=?.003) and 36% less likely to switch therapy again (OR?=?0.64; 95% CI?=?0.51–0.81; p?p?=?.006). New MOA switchers had 16% lower drug costs than TNFi cyclers (cost ratio?=?0.84; 95% CI?=?0.79–0.88; p?p?Limitations: Claims payments may not reflect rebates or other cost offsets. Medical and pharmacy claims do not include clinical end-points or reasons that lead to new MOA switching vs TNFi cycling.

Conclusions: These results support switching to a new MOA after a patient fails treatment with a TNFi, which is consistent with recent guidelines for the pharmacologic management of established rheumatoid arthritis.     

The Demand for Healthcare Regulation: The Effect of Political Spending on Occupational Licensing Laws

Using data on political spending in state elections, this study considers the role of political contributions by healthcare professional interest groups in states' decisions to enact occupational licensing laws. These laws govern how different professions may operate in healthcare markets, and while they ostensibly exist to protect consumers, licensing laws can also insulate professionals from competition in healthcare markets. Higher political spending by physician interest groups increases the probability that a state maintains licensing laws restricting the practices of nurse practitioners (NPs) and physician assistants (PAs). Conversely, increased spending by hospital interest groups increases the probability that a state allows NPs and PAs to practice with more autonomy. Nurse groups, which include groups affiliated with NPs, have a smaller effect on licensing laws. And nonphysician groups, which include groups affiliated with PAs, have almost no effect on licensing laws. These results are consistent with the investment theory of political spending.     

“Fact or artifact? Empirical evidence on the robustness of compromise effects in binding and non-binding choice contexts”

In this article, the compromise effect (CE) is investigated according to which the choice share of a particular product is expected to increase when it is in an intermediate position in a subset of a product line. In a laboratory-based replication study, we tested CE both in hypothetical non-binding settings most commonly used in previous research on CE as well as in settings where experienced consumers make unforced and binding purchase decisions between real brands of two particular categories. While results prove robustness of the compromise effect even in the binding choice context, its magnitude is significantly reduced, hence indicating a hypothetical bias. Thus, since the CE is evidently less prevalent in the more realistic binding choice setting, compromise effects must be considered overrated to a certain degree in the previous studies on hypothetical decisions.     

Trade Policy and Productivity Growth in OECD Manufacturing *

Trade liberalization may promote economic growth in a number of ways, including by accelerating the rate of technological change. Firms that face more intense import competition may be spurred to greater rates of innovation; firms which export may absorb new technologies through their contact with international markets. This paper examines evidence on trade policy and productivity growth for a sample of thirteen OECD countries and including eighteen manufacturing sectors, using data primarily from the 1980s. Within individual sectors, there are strong productivity convergence effects within the OECD. After controlling for convergence, we find a positive association between high rates of productivity growth and low tariffs, and between high productivity growth and strong export performance. We found no particular association between high productivity growth and import penetration. The results are consistent with the possibility of positive linkages between trade liberalization and accelerated productivity growth. [F1, O4]     

Class Struggle or Embedded Markets? Marx,Polanyi and the Meanings and Possibilities of Social Transformation

Marx and Polanyi both held that socialism, in one form or another, was a preferable and possible alternative to capitalism. Their ideas are seen to offer theoretical tools to understand the tensions and contradictions of capitalism, and to inform ways to overcome them. This paper discusses Polanyi's work from a Marxist perspective in order to illuminate his strengths and weaknesses. Its main focus is to discuss Polanyi's juxtaposing of commodification against exploitation, in diagnosing the problems of capitalist expansion. We suggest that by juxtaposing these two moments, Polanyi not only misses out on a crucial arena of capitalist activity (exploitation), but also undermines his own explication of processes of commodification. This has deleterious consequences for his understanding of the prevalence of poverty under capitalism. It also means that his vision of social transformation and of socialism is profoundly different, and potentially antithetical, to that of Marx. We suggest that for Polanyi's conception of de-commodification to gain greater traction it needs to be combined with Marx's analysis of exploitation and class struggle.     

On the intergenerational transmission of preferences

Recent contributions in economics have argued for a re-introduction of preference-based approaches to economic behavior and have called for an empirical investigation of preferences in order to overcome the prevalent skepticism against such explanations within the discipline. The present paper contributes to this discussion by assessing the extent, specificity, and malleability of preference transmission from parents to their children, and thus provides evidence for the clustering of preferences along family lines. Using data on eight activity choices from the British Household Panel Survey, we find strong (and positive) correlations between preferences of parents and their adult children. These correlations are found to be robust to a wide number of robustness checks but to vary considerably across activities, suggesting that parents may have more influence over some preferences than over others. Further investigations also show that this influence is surprisingly robust to a wide number of potentially intervening factors.     

“I recycle,I turn out the lights”: understanding the everyday sustainability practices of backpackers

As holidays merge more intimately with the everyday lives of an increasing number of people, questions of sustainability in tourism contexts become ever more urgent. Using the concept of everyday practices, in which sustainability is thought to emerge in the routines of people going about their day-to-day lives, this mixed-method study aimed to understand how sustainability figures in the practices, of backpackers. Findings revealed sustainability to be of minimal concern to most backpackers who nevertheless performed a range of sustainable practices but unintentionally. Environmental sustainability was practised via reduced resource consumption and waste, economic sustainability by working and spending more money overall than other tourist types, and social sustainability through demonstrating cultural respect and community participation. The main factors encouraging sustainable practices amongst backpackers were their low-budget focus and their use as a labour source by industries that require temporary and flexible workers. When backpackers were employed, each facet of sustainability became mutually reinforcing. The results of this study are in contrast to usual perceptions of tourism as a time in which norms of sustainable behaviour are suspended, as backpacking was found to provide opportunities for the performance of more sustainable practices compared to home.     

Estimating cost of capital in firm valuations with arithmetic or geometric mean – or better use the Cooper estimator?

We test the extent and determinants of bias effects of the arithmetic as well as the geometric mean estimator and the estimator of Cooper [1996. Arithmetic versus geometric mean estimators: Setting discount rates for capital budgeting. European Financial Management 2 (July): 157–67] regarding discount rate estimation for firm valuation by way of a bootstrap approach for 13 different countries. The Cooper estimator is superior to both the geometric and the (conventional) arithmetic mean estimator. However, a ‘truncated’ version of the arithmetic mean estimator leads generally to better estimation outcomes than the Cooper estimator. This means that, in order to reduce problems of upward-biased firm value estimates, expected cash flows beyond a certain time horizon are completely neglected in terminal value estimation. Such an approach seems particularly reasonable for the valuation of young growth companies as well as for companies from quickly developing countries such as Brazil, China, or Thailand, because the bias in terminal value estimation is increasing in the growth rate of future expected cash flows.     

The low return distortion of the Sharpe ratio

This article formalizes the undesirable property of the Sharpe ratio that a fund with a certain poor performance can increase its Sharpe ratio in a prospective period by generating a sufficiently negative excess return. Specifically, we set out the conditions that a fund must meet to be exposed to this kind of effect. Furthermore, we provide a formal statement of the excess return value that needs to be deceeded to obtain a higher Sharpe ratio. In an empirical application, we investigate the practical relevance of this kind of distortion. We find that an economically significant number of funds listed in the CISDM hedge fund database have at least once reported a sufficiently negative return, causing an increased Sharpe ratio fund performance.