نتایج جستجو برای: طبقهبندیjel o13

تعداد نتایج: 337  

Journal: :BMC Infectious Diseases 2021

Abstract Background Leishmaniasis is one of the most neglected tropical diseases in world and remains endemic some underdeveloped regions, including western China. The phylogeny classification Chinese Leishmania has not been completely clarified to date, especially within ( L. ) donovani complex, although phylogenetic analyses based on a series gene markers have performed. More analytic methods...

Journal: :American Economic Journal: Applied Economics 2021

Improving “ last-mile” public service delivery is a recurring challenge in developing countries. Could the widespread adoption of mobile phones provide scalable, cost-effective means for improvement? We use large-scale experiment to evaluate impact phone-based monitoring on program that transferred nearly billion dollars 5.7 million Indian farmers. In randomly selected jurisdictions, officials ...

Journal: :American Economic Journal: Applied Economics 2021

Traders are often blamed for high prices, prompting government regulation. We study the effects of a ban layer financing intermediaries in edible oil supply chain Bangladesh during 2011–2012. Contrary to predictions standard model an oligopolistic chain, caused downstream wholesale and retail prices rise, pass-through changes imported crude price fall. These results can be explained by extensio...

Journal: :American Economic Journal: Economic Policy 2021

Historically, improvements in municipal water quality led to substantial mortality decline today’s wealthy countries. However, disinfection has not consistently produced large benefits lower-income We study this issue by analyzing a large-scale program Mexico that increased chlorination coverage urban areas from 58 percent over 90 within 18 months. estimate the reduced childhood diarrheal disea...

Journal: :American Economic Journal: Applied Economics 2023

Farmers often buy water using fixed fees—rather than with marginal prices. We use two randomized controlled trials in Bangladesh to study the relationship between prices, adoption of a water-saving technology, and usage. Our first experiment shows that technology only saves when farmers face second finds an encouragement voluntarily convert hourly pumping charges does not save water. Taken toge...

Journal: :International Journal of Energy Economics and Policy 2021

This study employs the vector autoregressive model (VAR), impulse response function and variance decomposition to impact of oil price shocks on components government spending both oil-exporting importing countries over period from 1980 2018. While vast majority previous studies focused spending, this emphasized these current capital expenditure. It was found that affect expenditure positively i...

Journal: :The American Economic Review 2021

We study a simple savings scheme that allows workers to defer receipt of part their wages for three months at zero interest. The significantly increases during the deferral period, leading higher postdisbursement spending on lumpy goods. Two years later, after two additional rounds scheme, we find treated have made permanent improvements homes. popularity implies lack good alternative options. ...

Journal: :The American Economic Review 2022

Factor market failures can limit adoption of profitable technologies. We leverage a plot-level spatial regression discontinuity design in the context irrigation use by farmers provided free access to water. Using boosts profits 43–62 percent. Yet, only irrigate 30 percent plots because labor costs. demonstrate inefficient use, showing irrigating one plot reduce their on other plots. This ineffi...

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