- Friday Links
Over the last decade, both Kenya and Liberia have sought to scale up successful pilot programs that help children to learn to read. Even as more and more impact evaluations are of programs at scale, pilots still constitute a significant portion of what we test. That’s with good reason: Governments wisely seek to pilot and test programs before expending valuable resources in implementing a program across the country. Last year, I wrote about how the Indian organization Pratham worked with J-PAL to test effective programs to improve reading iteratively, varying different parameters in terms of who was implementing (government teachers versus volunteers) and when (in-school versus during the holidays).
- In the journal Epidemics, McCormick et al. (2017) consider the static and dynamic displacement effects of behavior change interventions for HIV prevention.
- Just this week, I provided a journalist with a bunch of citations, most of which she could not access. Perhaps, no more? LSE Impact Blog discusses the Unpaywall: "The extension is called Unpaywall, and it’s powered by an open index of more than ten million legally-uploaded, open access resources. Reports from our pre-release are great: “Unpaywall found a full-text copy 53% of the time,” reports librarian, Lydia Thorne. Fisheries researcher Lachlan Fetterplace used Unpaywall to find “about 60% of the articles I tested. This one is a great tool and I suspect it will only get better.” And indeed it has! We’re now getting full-text on 85% of 2016’s most-covered research papers."
- In the Harvard Business Review, Nick Bloom discusses how a lot of inequality is getting driven by differences between firms: “companies are paying more to get more: boosting salaries to recruit top talent or to add workers with sought-after skills. The result is that highly skilled and well-educated workers flock to companies that can afford to offer generous salaries, benefits, and perks — and further fuel their companies’ momentum. Employees in less-successful companies continue to be poorly paid and their companies fall further behind”
- Vox EU piece by Brown, van de Walle and Ravallion summarizing their work in two recent papers on the difficulties in targeting the poor “about three-quarters of underweight women and undernourished children are not found in the poorest 20% of households. This is consistent with evidence of considerable intra-household inequality”
“We propose a model of the household with consumption, production and revealed preference conditions for stability on the marriage market. We define marital instability in terms of the consumption gains to remarrying another individual in the same marriage market, and to being single. We find that a 1 percentage point increase in the wife’s estimated consumption gains from remarriage is significantly associated with a 0.6 percentage point increase in divorce probability in the next three years.”
- In news that delighted me and my cohort this week, apparently people in their 40s are the key to a nation’s productivity, embodying “a good balance of experience and creativity”, and “The higher the ratio of people aged 40-49, the faster the economy tended to increase its output per hour of work”. You’re welcome.
- Duncan Green on what aid agencies need to do to get serious about changing social norms