571 research outputs found
The Last Best Hope for Progressivity in Tax
We argue that a spending tax, as opposed to an income or wage tax, is the “last best hope” for a return to significantly more progressive marginal tax rates than obtain today. The simple explanation for this central claim looks to incentive effects, especially for “rich people,” as both economists and commentators are inclined to focus. High marginal tax rates under an income tax fall on and hence deter the socially productive activities of work and savings. High marginal rates under a wage tax fall on and hence deter the socially productive activity of work alone. But high marginal rates under a spending tax fall on and hence deter high-end spending, which is arguably a social “bad,” and do not necessarily deter the social goods of work and savings. This is a possible empirical result. In this Article, we present the analytic arguments for it and sketch out a research agenda that might verify it. The idea is that because one can escape or defer paying taxes under a progressive spending tax by saving, an activity with positive social externalities, the efficiency costs of high marginal rates under a spending tax can be mitigated. Unless people work only in order to be able to spend on themselves, and even then only if they fully internalize in their present labor supply decisions the ultimate tax they will pay - and we argue that each of these assumptions is unlikely to hold in the extreme - a spending tax can bear more steeply progressive rates with less cost in efficiency or social wealth than can an income or wage tax. A progressive spending tax also holds out the possibility of sorting the rich or high ability into two groups, elastic savers and inelastic spenders, which could yield welfare gains unavailable under income or wage taxes, which under current technologies can only sort the high ability into workers and non-workers. Progressive spending taxes also fall on consumption financed by windfall gains, as to which unexpected good fortune exante incentive effects are likely to be weak
Hybrid Software Development Approaches in Practice: A European Perspective
Agile and traditional development approaches are used in combination in todays software development. To improve the understanding and to provide better guidance for selecting appropriate development approaches, it is important to analyze such combinations in practice. Results obtained from an online survey strongly confirm that hybrid development approaches are widely used in industry. Our results show that hybrid development approaches: (i) have become reality for nearly all companies; (ii) are applied to specific projects even in the presence of company-wide policies for process usage; (iii) are neither planned nor designed but emerge from the evolution of different work practices; and, (iv) are consistently used regardless of company size or industry secto
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Addressing the health workforce crisis: towards a common approach
The challenges in the health workforce are well known and clearly documented. What is not so clearly understood is how to address these issues in a comprehensive and integrated manner that will lead to solutions. This editorial presents – and invites comments on – a technical framework intended to raise awareness among donors and multisector organizations outside ministries of health and to guide planning and strategy development at the country level
Catching up with Method and Process Practice: An Industry-Informed Baseline for Researchers
Software development methods are usually not applied by the book.companies are under pressure to continuously deploy software products that meet market needs and stakeholders\u27 requests. To implement efficient and effective development processes, companies utilize multiple frameworks, methods and practices, and combine these into hybrid methods. A common combination contains a rich management framework to organize and steer projects complemented with a number of smaller practices providing the development teams with tools to complete their tasks. In this paper, based on 732 data points collected through an international survey, we study the software development process use in practice. Our results show that 76.8% of the companies implement hybrid methods.company size as well as the strategy in devising and evolving hybrid methods affect the suitability of the chosen process to reach company or project goals. Our findings show that companies that combine planned improvement programs with process evolution can increase their process\u27 suitability by up to 5%
Making sense of information about HPV in cervical screening: a qualitative study
Introducing human papillomavirus (HPV) testing into cervical cancer screening has the potential to change the way that women understand cervical cancer, the psychological impact of abnormal screening results and the likelihood of future participation in screening. The study used in-depth interviews to examine how women make sense of information about HPV in the context of cervical cancer screening. A total of 74 women were recruited following participation in HPV testing. Women varied widely in their beliefs about the aetiology of cervical cancer and its relationship with sexual activity, as well as in their understanding of the sexually transmitted nature of HPV. While some women who understood that HPV is sexually transmitted were able to integrate this into their existing model of cervical cancer, others were shocked by the link between cervical cancer and sex, of which they had been previously unaware. Women were generally reassured to know that HPV is common, has no symptoms, can lie dormant for many years, can clear up on its own and need not raise concerns about transmission to sexual partners. Women's understanding of HPV varied considerably, even after participation in testing. The way in which information is presented to women will be crucial in minimising the negative psychological impact of testing positive and ensuring that participation in screening remains high
Development of the Reporting Infographics and Visual Abstracts of Comparative studies (RIVA-C) checklist and guide
People often use infographics (also called visual or graphical abstracts) as a substitute for reading the full text of an article. This is a concern because most infographics do not present sufficient information to interpret the research appropriately and guide wise health decisions. The Reporting Infographics and Visual Abstracts of Comparative studies (RIVA-C) checklist and guide aims to improve the completeness with which research findings of comparative studies are communicated and avoid research findings being misinterpreted if readers do not refer to the full text. The primary audience for the RIVA-C checklist and guide is developers of infographics that summarise comparative studies of health and medical interventions. The need for the RIVA-C checklist and guide was identified by a survey of how people use infographics. Possible checklist items were informed by a systematic review of how infographics report research. We then conducted a two-round, modified Delphi survey of 92 infographic developers/designers, researchers, health professionals and other key stakeholders. The final checklist includes 10 items. Accompanying explanation and both text and graphical examples linked to the items were developed and pilot tested over a 6-month period. The RIVA-C checklist and guide was designed to facilitate the creation of clear, transparent and sufficiently detailed infographics which summarise comparative studies of health and medical interventions. Accurate infographics can ensure research findings are communicated appropriately and not misinterpreted. By capturing the perspectives of a wide range of end users (eg, authors, informatics editors, journal editors, consumers), we are hopeful of rapid endorsement and implementation of RIVA-C.</p
Identifying the mechanisms through which behavioral weight-loss treatment improves food decision-making in obesity
Objectives: Behavioral weight loss (BWL) programs are the recommended treatment for obesity, yet it is unknown whether these programs change one's ability to use self-control in food choices and what specific mechanisms support such change. Using experimental economics methods, we investigated whether changes in dietary behavior in individuals with obesity following BWL are driven by one or more of the following potential mechanisms: changes in the perception of the 1) health or 2) taste of food items, and/or 3) shifting decision weights for health versus taste attributes. Therefore, we compared these mechanisms between obese participants and lifetime normal weight controls (NW) both before and after BWL. Methods: Females with obesity (N = 37, mean BMI = 33.2) completed a food choice task involving health ratings, taste ratings, and decision-making pre- and post-standard BWL intervention. NW controls (N = 30, BMI = 22.4) completed the same task. Results: Individuals with obesity exhibited increased self-control (selecting healthier, less tasty food choices) post-treatment. However, their rates of self-control remained significantly lower than NW. We found no differences in initial health perceptions across groups, and no changes with treatment. In contrast, taste ratings and the relative value of taste versus health decreased following treatment. Although, post-treatment participants continued to perceive unhealthy foods as tastier and used less self-control than NW controls, they showed significant improvements in these domains following a BWL intervention. Conclusions: To help individuals improve dietary decisions, additional research is needed to determine how to make greater changes in taste preferences and/or the assignment of value to taste versus health attributes in food choices
Bivariate genetic modelling of the response to an oral glucose tolerance challenge: A gene x environment interaction approach
AIMS/HYPOTHESIS: Twin and family studies have shown the importance of genetic factors influencing fasting and 2 h glucose and insulin levels. However, the genetics of the physiological response to a glucose load has not been thoroughly investigated. METHODS: We studied 580 monozygotic and 1,937 dizygotic British female twins from the Twins UK Registry. The effects of genetic and environmental factors on fasting and 2 h glucose and insulin levels were estimated using univariate genetic modelling. Bivariate model fitting was used to investigate the glucose and insulin responses to a glucose load, i.e. an OGTT. RESULTS: The genetic effect on fasting and 2 h glucose and insulin levels ranged between 40% and 56% after adjustment for age and BMI. Exposure to a glucose load resulted in the emergence of novel genetic effects on 2 h glucose independent of the fasting level, accounting for about 55% of its heritability. For 2 h insulin, the effect of the same genes that already influenced fasting insulin was amplified by about 30%. CONCLUSIONS/INTERPRETATION: Exposure to a glucose challenge uncovers new genetic variance for glucose and amplifies the effects of genes that already influence the fasting insulin level. Finding the genes acting on 2 h glucose independently of fasting glucose may offer new aetiological insight into the risk of cardiovascular events and death from all causes
Eliciting taxpayer preferences increases tax compliance
Two experiments show that eliciting taxpayer preferences on government spending—providing taxpayer agency--increases tax compliance. We first create an income and taxation environment in a laboratory setting to test for compliance with a lab tax. Allowing a treatment group to express nonbinding preferences over tax spending priorities, leads to a 16% increase in tax compliance. A followup online study tests this treatment with a simulation of paying US federal taxes. Allowing taxpayers to signal their preferences on the distribution of government spending, results in a 15% reduction in the stated take-up rate of a questionable tax loophole. Providing taxpayer agency recouples tax payments with the public services obtained in return, reduces general anti-tax sentiment, and holds satisfaction with tax payment stable despite increased compliance with tax dues. With tax noncompliance costing the US government $385billion annually, providing taxpayer agency could have meaningful economic impact. At the same time, giving taxpayers a voice may act as a two-way "nudge," transforming tax payment from a passive experience to a channel of communication between taxpayers and government
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