Interesting academic articles for December 2018

I recently figured out that most journals have RSS feeds, which has shifted my strategy for learning about new articles from occasionally remembering to check journals for updates every few months to automatically getting new articles in Feedly.  It’s been great!  Here are some of the things that I’m looking forward to reading in political science and economics.

Peter Van der Windt, Macartan Humphreys, Lily Medina, Jeffrey F. Timmons, Maarten Voors. 2018. Citizen Attitudes Toward Traditional and State Authorities: Substitutes or Complements? Comparative Political Studies.

Do citizens view state and traditional authorities as substitutes or complements? Past work has been divided on this question. Some scholars point to competition between attitudes toward these entities, suggesting substitution, whereas others highlight positive correlations, suggesting complementarity. Addressing this question, however, is difficult, as it requires assessing the effects of exogenous changes in the latent valuation of one authority on an individual’s support for another. We show that this quantity—a type of elasticity—cannot be inferred from correlations between support for the two forms of authority. We employ a structural model to estimate this elasticity of substitution using data from 816 villages in the Democratic Republic of Congo and plausibly exogenous rainfall and conflict shocks. Despite prima facie evidence for substitution logics, our model’s outcomes are consistent with complementarity; positive changes in citizen valuation of the chief appear to translate into positive changes in support for the government.

Arthur Thomas Blouin and Sharun W. Mukand. 2018. “Erasing Ethnicity? Propaganda, Nation Building and Identity in Rwanda.Journal of Political Economy.

This paper examines whether propaganda broadcast over radio helped to change inter- ethnic attitudes in post-genocide Rwanda. We exploit variation in exposure to the gov- ernment’s radio propaganda due to the mountainous topography of Rwanda. Results of lab-in-the-field experiments show that individuals exposed to government propaganda have lower salience of ethnicity, increased inter-ethnic trust and show more willingness to interact face-to-face with members of another ethnic group. Our results suggest that the observed improvement in inter-ethnic behavior is not cosmetic, and reflects a deeper change in inter- ethnic attitudes. The findings provide some of the first quantitative evidence that the salience of ethnic identity can be manipulated by governments.

Viviana M.E. Perego. 2018. “Crop prices and the demand for titled land: Evidence from Uganda.Journal of Development Economics.

I investigate how agricultural prices affect demand for titled land, using panel data on Ugandan farmers, and a price index that weighs international crop prices by the structure of land use at the sub-county level. Higher prices increase farmers’ share of titled land. I also present evidence of a positive impact of prices on agricultural incomes. The effect of prices on land tenure is stronger when farmers have access to roads and markets, when they have undertaken investment on the land, and when households fear land grabbing.

Johannes Haushofer, Jeremy Shapiro, Charlotte Ringdal, and Xiao Yu Wang. 2018. “Income Changes and Intimate Partner Violence: Evidence from Unconditional Cash Transfers in Kenya.” Working paper.

We use a randomized controlled trial to study the impact of unconditional cash transfers on intimate partner violence (IPV) in western Kenya. Cash transfers to women of on average USD 709 PPP led to a significant 0.25 SD increase in a female empowerment index, while transfers to men led to a non-significant increase of 0.09 SD, with no significant difference between these effects. Physical violence was significantly reduced regardless of whether transfers were sent to the woman (0.26 SD) or the man (0.18 SD). In contrast, sexual violence was reduced significantly after transfers to the woman (−0.22 SD), but not the man (−0.10 SD, not significant). Our theoretical framework suggests that physical violence is reduced after transfers to the wife because her tolerance for it decreases, and is reduced after transfers to the husband because he has a distaste for it. We observe a large and significant spillover effect of transfers on domestic violence: non-recipient women in treatment villages show a 0.19 SD increase in the female empowerment index, driven by a 0.16 SD reduction in physical violence. Together, these results suggest that poverty alleviation through unconditional cash transfers can decrease IPV both in recipient and neighboring households.

Marcel Fafchamps and Simon R. Quinn. 2018. “Networks and Manufacturing Firms in Africa: Results from a Randomized Field Experiment.” NBER working paper #21132.

We run a novel field experiment to link managers of African manufacturing firms. The experiment features exogenous link formation, exogenous seeding of information, and exogenous assignment to treatment and placebo. We study the impact of the experiment on firm business practices outside of the lab. We find that the experiment successfully created new variation in social networks. We find significant diffusion of business practices only in terms of VAT registration and having a bank current account. This diffusion is a combination of diffusion of innovation and simple imitation. At the time of our experiment, all three studied countries were undergoing large changes in their VAT legislation.

Margaret McConnell, Claire Watt Rothschild, Allison Ettenger, Faith Muigai, Jessica Cohen. 2018. “Free contraception and behavioural nudges in the postpartum period: evidence from a randomised control trial in Nairobi, Kenya.” BMJ Global Health.

Short birth intervals are a major risk factor for poor maternal and newborn outcomes. Utilisation of modern contraceptive methods during the postpartum period can reduce risky birth intervals but contraceptive coverage during this critical period remains low. We conducted a randomised controlled experiment to test whether vouchers for free contraception, provided with and without behavioural ‘nudges’, could increase modern contraceptive use in the postpartum period. 686 pregnant women attending antenatal care in two private maternity hospitals in Nairobi, Kenya, were enrolled in the study. The primary outcomes were the use of modern contraceptive methods at nearly 3 months and 6 months after expected delivery date (EDD). We tested the impact of a standard voucher that could be redeemed for free modern contraception, a deadline voucher that expired 2 months after delivery and both types of vouchers with and without a short message service (SMS) reminder, relative to a control group that received no voucher and no SMS reminder. By nearly 6 months after EDD, we find that the combination of the standard voucher with an SMS reminder increased the probability of reporting utilisation of a modern contraceptive method by 25 percentage points (pp) (95% CI 6 pp to 44 pp) compared with the control group. Estimated impacts in other treatment arms were not statistically significantly different from the control group.

Elizabeth R. Metteta. 2018. “Irrigation dams, water and infant mortality: Evidence from South Africa.Journal of Development Economics.

Irrigation dams enable farmers to harness substantial water resources. However, their use consumes finite water supplies and recycles agricultural water pollutants back into river systems. This paper examines the net effect of irrigation dams on infant mortality in South Africa. It relies on both fixed effects and instrumental variables approaches to counteract potential bias associated with non-random dam placement, with the latter approach predicting dam placement based on geographic features and policy changes. The analysis reveals that additional irrigation dams within South Africa’s former homeland districts after Apartheid increased infant mortality by 10–20 percent. I then discuss and evaluate possible channels. Dam-induced increases in agricultural activity could increase water pollution and reduce water availability, and I provide supporting evidence that both channels may contribute. These results suggest a potential trade-off between the health costs of agricultural water use and the economic benefits of increased agricultural production.

Ellora Derenoncourt. 2018. “Can you move to opportunity? Evidence from the Great Migration.” Job market paper.

The northern United States long served as a land of opportunity for black Americans, but today the region’s racial gap in intergenerational mobility rivals that of the South. I show that racial composition changes during the peak of the Great Migration (1940-1970) reduced upward mobility in northern cities in the long run, with the largest effects on black men. I identify urban black population increases during the Migration at the commuting zone level using a shift-share instrument, interacting pre-1940 black southern migrant location choices with predicted outmigration from southern counties. The Migration’s negative effects on children’s adult outcomes appear driven by neighborhood factors, not changes in the characteristics of the average child. As early as the 1960s, the Migration led to greater white enrollment in private schools, increased spending on policing, and higher crime and incarceration rates. I estimate that the overall change in childhood environment induced by the Great Migration explains 43% of the upward mobility gap between black and white men in the region today


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