scholarly journals Violent Conflict and Behavior: A Field Experiment in Burundi

2012 ◽  
Vol 102 (2) ◽  
pp. 941-964 ◽  
Author(s):  
Maarten J Voors ◽  
Eleonora E. M Nillesen ◽  
Philip Verwimp ◽  
Erwin H Bulte ◽  
Robert Lensink ◽  
...  

We use a series of field experiments in rural Burundi to examine the impact of exposure to conflict on social, risk, and time preferences. We find that conflict affects behavior: individuals exposed to violence display more altruistic behavior towards their neighbors, are more risk-seeking, and have higher discount rates. Large adverse shocks can thus alter savings and investments decisions, and potentially have long-run consequences—even if the shocks themselves are temporary. (JEL C93, D12, D74, 012, 017, 018)

2014 ◽  
Vol 129 (3) ◽  
pp. 1355-1407 ◽  
Author(s):  
Roland G. Fryer

Abstract This study examines the impact on student achievement of implementing a bundle of best practices from high-performing charter schools into low-performing, traditional public schools in Houston, Texas, using a school-level randomized field experiment and quasi-experimental comparisons. The five practices in the bundle are increased instructional time, more effective teachers and administrators, high-dosage tutoring, data-driven instruction, and a culture of high expectations. The findings show that injecting best practices from charter schools into traditional Houston public schools significantly increases student math achievement in treated elementary and secondary schools—by 0.15 to 0.18 standard deviations a year—and has little effect on reading achievement. Similar bundles of practices are found to significantly raise math achievement in analyses for public schools in a field experiment in Denver and program in Chicago.


PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0243044
Author(s):  
Syon P. Bhanot ◽  
Daphne Chang ◽  
Julia Lee Cunningham ◽  
Matthew Ranson

Researchers in the social sciences have increasingly studied how emotions influence decision-making. We argue that research on emotions arising naturally in real-world environments is critical for the generalizability of insights in this domain, and therefore to the development of this field. Given this, we argue for the increased use of the “quasi-field experiment” methodology, in which participants make decisions or complete tasks after as-if-random real-world events determine their emotional state. We begin by providing the first critical review of this emerging literature, which shows that real-world events provide emotional shocks that are at least as strong as what can ethically be induced under laboratory conditions. However, we also find that most previous quasi-field experiment studies use statistical techniques that may result in biased estimates. We propose a more statistically-robust approach, and illustrate it using an experiment on negative emotion and risk-taking, in which sports fans completed risk-elicitation tasks immediately after watching a series of NFL games. Overall, we argue that when appropriate statistical methods are used, the quasi-field experiment methodology represents a powerful approach for studying the impact of emotion on decision-making.


Author(s):  
Nanang Suryadi ◽  
Rila Anggraeni ◽  
Dandi Ariyanto ◽  
Muhammad Fajrul Islam

Pandemic crises affect economic conditions both in terms of supply and demand. New post-pandemic attitudes and behavior patterns called The New Normal will change consumer behavior in the long run. The companies and manufacturers need to understand the changes in consumer behavior to maintain and increase market share. The study aims to examine the impact of the coronavirus pandemic on changes in Gen-Z behavior. The results explain and predict changes in Gen-Z behavior as reference material for marketing strategy design and a reference source for future research. This research uses a qualitative approach that is focus group discussion. The study was conducted in Indonesia in April 2021 with the younger generation as informants. This study specifically selected Generation Z as the target because this generation has unique characteristics and is currently the largest consumer. The results showed that the Covid-19 pandemic requires Gen-Z to adapt quickly and perform various activities that they usually do in digital ways, such as studying, working, shopping, physical exercise at home online. Covid-19, which has plagued the world in the long run where solutions are still not formulated, has Gen-Z with concerns about the future and health. Gen-Z becomes more concerned about physical health by paying attention to food intake and consuming more vitamins. To balance mental health, Gen-Z used online applications that are entertaining, such as online games, online concerts, and online recreation. Gen-Z's new behaviors and habits tend to consume more social media or apps that they can use to develop themselves.


2013 ◽  
Vol 1 (1) ◽  
pp. 117-137 ◽  
Author(s):  
R. Michael Alvarez ◽  
Ines Levin ◽  
Julia Pomares ◽  
Marcelo Leiras

Voting technologies frame the voting experience. Different ways of presenting information to voters, registering voter choices and counting ballots may change the voting experience and cause individuals to re-evaluate the legitimacy of the electoral process. Yet few field experiments have evaluated how voting technologies affect the voting experience. This article uses unique data from a recent e-voting field experiment in Salta, Argentina to study these questions. It employs propensity-score matching methods to measure the causal effect of replacing traditional voting technology with e-voting on the voting experience. The study's main finding is that while e-voters perceive the new technology as easier to use and more likely to register votes as intended—and support replacing traditional voting technologies with e-voting—the new technologies also raise some concerns about ballot secrecy.


1998 ◽  
Vol 46 (6) ◽  
pp. 707 ◽  
Author(s):  
Anthony J. Willis ◽  
Richard H. Groves ◽  
Julian E. Ash

The combined effects of interspecific plant competition and herbivory by a mite, Aculus hyperici Liro, on the growth of two Hypericum species were compared in separate glasshouse and field experiments. The impact of mites on H. perforatum L. was slightly greater than their effect on H. gramineum Forst. In both the glasshouse and the field, competition affected Hypericum growth more adversely than herbivory. There was little evidence that combinations of competition and herbivory caused complex synergistic reductions in plant productivity. In combination, herbivory and competition caused proportional reductions in growth, approximately equivalent to the product of the proportional growth under competition and herbivory individually. Broadly similar results were achieved in both the glasshouse and the field experiment. The results are discussed in relation to the biological control of H. perforatum by A. hyperici, and the impact of this arthropod on the growth of H. gramineum, a non-target native species.


Plant Disease ◽  
1998 ◽  
Vol 82 (1) ◽  
pp. 110-113 ◽  
Author(s):  
A. Heydari ◽  
I. J. Misaghi

The impact of three pre-plant herbicides, trifluralin, pendimethalin and prometryn, on the incidence and the development of Rhizoctonia solani-induced cotton seedling damping-off was investigated in the controlled environmental chamber and in the field. In the controlled environmental chamber experiments, trifluralin, pendimethalin and prometryn were applied to the soil at 1.8, 2.4, and 3.6 μg a.i. g-1 soil, respectively (equivalent to the respective recommended field concentrations of 0.7, 0.9, and 1.3 kg a.i. ha-1). In the controlled environmental chamber experiments, where soil was infested at planting, application of prometryn, but not pendimethalin or trifluralin, to the soil caused a significant (P < 0.05) increase in damping-off incidence. In controlled environmental chamber experiments where soil was infested after emergence, damping-off increased significantly (P < 0.05) in the presence of pendimethalin and prometryn, but not trifluralin. In a field experiment conducted in Safford, Arizona, pre-plant application of pendimethalin or prometryn, but not trifluralin, caused significant (P < 0.05) increases in disease incidence. In another field experiment in Tucson, Arizona, a significant (P < 0.05) increase in disease incidence was observed in plots treated with prometryn, but not in plots treated with pendimethalin or trifluralin. In both controlled environmental chamber and field experiments, application of selected herbicides had significant effects on disease development as judged by the slope of disease progress curves.


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