Tag Archives: Policy Interventions

A Case Study on Biodiversity Conservation

In brief, we learn that deforestation for implanting pastures is probably not economically justifiable at the individual rancher level and certainly not at greater spatial levels. We also show that wood extraction is not likely to be economically feasible for most landowners.

We learn that policy interventions to encourage biological diversity at the local level may focus upon informational barriers, conservation education and maximizing the sustainable, managed harvest of extractive and non-extractive goods and services other than cattle ranching. Finally, we learn that justification exists for integrating environmental policy in the Pantanal from local through, potentially international levels due to the global value of the Pantanal’s unique natural environment. Click here to read more…

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A Case Study on Synthetic Control Methods for Comparative

Case Study about Synthetic Control Methods for Comparative: Estimating the Effect of California Tobacco Control Program

Abstract: Building on an idea in Abadie and Gardeazabal (2003), this article investigates the application of synthetic control methods to comparative case studies. We discuss the advantages of these methods and apply them to study the effects of Proposition 99, a large-scale tobacco control program that California implemented in 1988. We demonstrate that, following Proposition 99, tobacco consumption fell markedly in California relative to a comparable synthetic control region. We estimate that by the year 2000 annual per-capita cigarette sales in California were about 26 packs lower than what they would have been in the absence of Proposition 99. Using new inferential methods proposed in this article, we demonstrate the significance of our estimates. Given that many policy interventions and events of interest in social sciences take place at an aggregate level.

Introduction: Social scientists are often interested in the effects of events or policy interventions that take place at an aggregate level and affect aggregate entities, such as firms, schools, or geographic or administrative areas (countries, regions, cities, etc.). To estimate the effects of these events or interventions, researchers often use comparative case studies. In comparative case studies, researchers estimate the evolution of aggregate outcomes (such as mortality rates, average income, crime rates, etc.) for a unit affected by a particular occurrence of the event or intervention of interest and compare it to the evolution of the same aggregates estimated for some control group of unaffected units. Card (1990) studies the impact of the 1980 Mariel Boatlift, a large and sudden Cuban migratory influx in Miami, using other cities in the southern United States as a comparison group. Keep reading…