Home gardens,household nutrition and income in rural farm households in Odisha,India

Home gardens have been an integral part of the recent food-based interventions aimed at stimulating changes in dietary patterns and improving nutrition. However, evidence of their effects on food security, dietary quality, child anthropometry and incomes is limited, particularly among vulnerable populations groups. Using panel data from a sample of approximately 1900 households from vulnerable population groups in Odisha, India, difference-in-differences and other econometric techniques, we analyse the effects of home gardens on food security, dietary quality, child anthropometry and income. On average, home gardens contribute to better household food security, higher dietary quality of men and women but do not contribute to higher children's dietary quality and anthropometry. Also, home gardens increase monthly per adult equivalent incomes by 37% and reduce the prevalence of poverty by 11.7 percentage points. Quantile regression results suggest that home gardens enhance food security and incomes in all quantiles, but richer farmers benefit more than poorer farmers. Overall, home gardens can enhance household food security, dietary quality of men and women, and income gains among vulnerable farming population groups, but they may not suffice to improve child dietary quality and anthropometry.     

Agricultural policies and food systems: Priorities for indicator development

Existing indicators of agricultural protection and support were developed primarily to gauge the market and welfare effects of government policies. They have shed light on a wider range of impacts through their use in economic models and empirical analysis. The rising scale of support to agriculture globally, and continued reliance on market distorting policy instruments, make this work as important as ever. Deeper investments are nonetheless needed to address heightened concerns about the spill-over impacts of agricultural policies on the performance of food systems, in particular with respect to food security and nutrition, rural livelihoods, resource use and the environment, and global emissions. A first area for development is improved measures of policies to correct agriculture's externalities. A priority here is to develop a carbon tax equivalent of sectoral mitigation efforts. A second area is to provide a clearer delineation of government spending on private versus public goods. This would make a valuable contribution to a ‘repurposing’ agenda that seeks to identify how agricultural budgets can be spent more effectively, as well as the scope for transferring resources to wider social priorities, such as public health and climate action.     

How policy is shaping the macro healthcare delivery supply chain: The emergence of a new tier of retail medical clinics

The healthcare industry continues to face substantial pressure to simultaneously improve costs and patient centricity. Much of the focus to date has concerned policy interventions capable of improving these performance measures for traditional healthcare providers, such as hospitals. But recently, nontraditional healthcare providers like Walmart Health and Amazon have made forays into the industry by establishing retail medical clinics (RMCs). These efforts constitute a redistribution of how services are organized across the macro healthcare delivery supply chain. While RMCs stand to bring innovative models of service delivery to patients, the policy environment can both enable and inhibit their involvement in the industry. We develop a framework that explains how structural and conduct regulations have historically influenced demand for and supply of healthcare services. We then describe how these regulatory factors can support nontraditional healthcare providers as they launch innovative service delivery models aimed at efficiency and customer centricity.     

The politics of transnational accountability policies and the (re)construction of corruption: The case of Tunisia,Transparency International and the World Bank

This study explores the intersection between accountability policies and anti-corruption measures. Transnational actors define acceptable governance and implement accountability policies on the assumption that corruption is a problem endemic to developing countries. Such accountability policies influence and help constitute transnational geographic and social spaces. However, the impacts of such assumptions and the resultant policies on developing countries and their citizens have not been widely investigated. This study uses a critical discourse analysis of the case of Tunisia before and after its 2011 revolution, to explore the politics and vested interests specific to anti-corruption policies promoted by transnational actors. The study’s contribution is twofold: Firstly, we identify the highly fungible character of the emanant cycles of Western-driven corruption discourses, and indicate their consequences in Tunisia. Secondly, we propose a future research agenda towards non-exploitative anti-corruption and accountability policies.     

Connecting the STEM dots: measuring the effect of an integrated engineering design intervention

Recent publications have elevated the priority of increasing the integration of Science, Technology, Engineering, and Mathematics (STEM) content for K-12 education. The STEM education community must invest in the development of valid and reliable to scales to measure STEM content, knowledge fusion, and perceptions of the nature of STEM. This brief report discusses the development of an instrument to measure student perceptions of the interdependent nature of STEM content knowledge in the context of a complex classroom intervention implemented in five Colorado high schools (N = 275). Specifically, cross-functional science, technology, engineering, and mathematics teams of high school students were formed to complete engineering design problems. Exploratory (pretest) and confirmatory (posttest) factor analyses indicated that a newly adapted scale to measure student perceptions of the interdependent nature of STEM content knowledge had possessed adequate model fit. Furthermore, analysis revealed a novel pattern of results for the intervention. Specifically, students with initially high perceptions of the interdependent nature of STEM sustained their high perceptions at posttest; however, students with initially low perceptions exhibited statistically significantly positive gains from pretest to posttest. Therefore, this intervention may work best with students who are at risk of losing interest in STEM disciplines. The implications of these research findings are discussed.     

Exploring the benefits of using stock characteristics in optimal portfolio strategies

I examine the benefits of using stock characteristics to model optimal portfolio weights in stock selection strategies using the characteristic portfolio approach of Brandt, Santa-Clara, and Valkanov. [2009. “Parametric Portfolio Policies: Exploiting Characteristics in the Cross-section of Equity Returns.” Review of Financial Studies 22: 3411–3447]. I find that there are significant out-of-sample performance benefits in using characteristics in stock selection strategies even after adjusting for trading costs, when investors can invest in the largest 350 UK stocks. Imposing short selling restrictions on the characteristic portfolio strategy leads to more consistent performance. The performance benefits are concentrated in the earlier part of the sample period and have disappeared in recent years. I find that there no performance benefits in using stock characteristics when using random subsets of the largest 350 stocks.     

Exploring the benefits of international government bond portfolio diversification strategies

We use the Bayesian approach of Wang (1998) to examine the diversification benefits of investing in international government bonds. We find that no short-selling constraints substantially reduce but do not eliminate the diversification benefits when only investing in G7 government bonds with different maturities. There are significant diversification benefits when using the G7 bonds, an inflation-linked bond index, and emerging market bonds even in the presence of no short-selling constraints. The superior performance is driven by the emerging markets bonds. We also find that the diversification benefits vary across different economic states.     

Insights from bitcoin trading

We examine commonality in returns and volume for Bitcoin–fiat currency pairs, each trading in a country with a single time zone. Bitcoin has substantial volume and obeys the theory related to commonality, liquidity, and price discovery. We find evidence that one common factor explains 68% of the variance in hourly volume. Though trading is higher on weekdays, there is substantial weekend trading, reflecting high retail participation. Volume is higher on exchanges during local working hours, as seen in forex markets, supporting the view that trading patterns depend on the location of trade rather than the location of the asset traded.     

A new measure of firm-group accounting closeness

Review of Quantitative Finance and Accounting - In this study we develop a new measure of firm-group accounting similarity which captures co-movement in accounting fundamentals over time. We...