Stuck in the middle: Impacts of grade configuration in public schools

We examine the implications of separating students of different grade levels across schools for the purposes of educational production. Specifically, we find that moving students from elementary to middle school in 6th or 7th grade causes significant drops in academic achievement. These effects are large (about 0.15 standard deviations), present for both math and English, and persist through grade 8, the last year for which we have achievement data. The effects are similar for boys and girls, but stronger for students with low levels of initial achievement. We instrument for middle school attendance using the grade range of the school students attended in grade 3, and employ specifications that control for student fixed effects. This leaves only one potential source of bias–correlation between grade range of a student's grade 3 school and unobservable characteristics that cause decreases in achievement precisely when students are due to switch schools–which we view as highly unlikely. We find little evidence that placing public school students into middle schools during adolescence is cost-effective.     

Corruption perceptions vs. corruption reality

This paper examines the accuracy of corruption perceptions by comparing Indonesian villagers' reported perceptions about corruption in a road-building project in their village with a more objective measure of ‘missing expenditures’ in the project. I find that villagers' reported perceptions do contain real information, and that villagers are sophisticated enough to distinguish between corruption in a particular road project and general corruption in the village. The magnitude of the reported information, however, is small, in part because officials hide corruption where it is hardest for villagers to detect. I also find that there are biases in reported perceptions. The findings illustrate the limitations of relying solely on corruption perceptions, whether in designing anti-corruption policies or in conducting empirical research on corruption.     

Do real payments really matter? A re-examination of the compromise effect in hypothetical and binding choice settings

Numerous empirical studies have confirmed the existence of the compromise effect, which stipulates that options positioned between extreme alternatives in a product space are perceived as more attractive, hence becoming more likely to be chosen by consumers. However, literature on the topic frequently addresses the limited realism of prior work due to the artificial designs that were used. In a laboratory-based replication study, we examine the compromise effect across several categories in a more market-like scenario, in which experienced consumers make unforced decisions between real brands. In particular, we investigate whether the compromise effect varies in strength across the choice settings, depending on whether a hypothetical choice setting or a binding setting (in which subjects face buying obligations in terms of real payments for products) has been applied. While our results prove the robustness of the compromise effect for both choice frames, its strength differs significantly. Specifically, the compromise effect is evidently not as strong when real payments are introduced in binding choice settings. In addition, analysis of moderating factors confirms that compromise effects are stronger for categories where subjects are more in agreement about the relative quality of the options.     

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.     

Clientele Effects and Condo Conversions

During an asset boom a property can develop a new usage. Appreciation investors emerge to change a property's occupant mix or letter grade. Rental investors not intending to change the mix or grade are outbid. Sellers receive a capitalized premium from the new type of bidder. For apartments in Miami-Fort Lauderdale during 2004–2006, there is an asset pricing premium from condo converters. The price of real estate depends on clienteles in addition to characteristics.     

Interweaving threads of credit and debt: Trading (through) textiles in colonial Dar es Salaam

Tracing the modus operandi of textile traders in colonial Dar es Salaam, this article makes a case for viewing the availability and extension of credit in the form of textiles as a central aspect of traders’ lives. The versatility of textiles in the local context of Dar es Salaam not only contributed to their high demand, their use as the main medium of exchange and the basis on which credit was extended; it also shaped the local conceptualisation of entrepreneurship. For textile traders in colonial Dar es Salaam, it was of economic, social and cultural importance to always be both in debt and have others in debt to them.