Research

Job Market Paper

Sun, Sand, and Services: Tourism and Household Welfare in Jamaica - Current Draft: (09/24/25)

Abstract Tourism services have seen marked growth over the last two decades. Many countries have also incorporated tourism specialization into their national development plans. Despite it's importance, there is still a significant amount that remains unanswered about the ability of tourism to generate improvements in welfare for a local population. There is also uncertainty about the degree to which gains from tourism are able to benefit households across the income distribution. I contribute to the literature by answering this question in the context of Jamaica, an emerging economy that has made tourism a major component of its national development strategy, but that has also experienced mixed economic outcomes over the past 2 decades. I contribute to the literature by employing two unique and powerful sources of data. First, I use a rich cross-section of Jamaican household expenditure data spanning the period between 2000 and 2021. Second, I use a dataset of granular tourist spending data from the Jamaican Ministry of Tourism covering the same period. Combining these, I use a shift-share instrumental variable estimation strategy to identify the effects of changes in tourism intensity in a municipality on real per capita consumption by local households. After accounting for cost-of-living differences between different areas of Jamaica, I find that an increase in tourist accommodation spending of 10 million US dollars yields a roughly 1% increase in real per-capita household expenditures for urban households outside of the capital Kingston. I find that these increases in expenditure occur across areas of food and nonfood consumption, along with healthcare and loan repayments. These increases are concentrated in medium-skilled occupations in non-tourism service sector and manufacturing industries, and for households roughly in the middle of the expenditure distribution. Overall, I find that tourism produces broad gains across income/expenditure but that there appear to be limited gains for workers within the tourism industry itself, consistent with low productivity growth and constant returns to scale production in labor.

Slides (9/24/2025): Job Market Paper:Slides


Working Papers

Nowcasting Global Trade from Space with Serkan Arslanalp, Seung Mo Choi, Parisa Kamali, Robin Koepke, Michele Ruta, Mario Saraiva, Alessandra Sozzi, and Jasper Verschuur
IMF Working Paper (05/2025)

Abstract We introduce a nowcasting model of global maritime trade, leveraging satellite-based big data on vessel movements. This provides a timely indicator of global trade as shipping accounts for about 80 percent of worldwide merchandise trade by volume. Our approach mimics key features of the way statisticians compile trade data—measuring the customs value of imported and exported goods, forming import and export price deflators, and then estimating import and export volumes. We show how global and regional nowcasts can be obtained using port-level data from IMF PortWatch and highlight important enhancements to the platform since its beta launch in November 2023. Finally, we demonstrate how the monthly nowcasts can be used to monitor fragmentation and regionalization in global maritime trade.
Climate and Consumption: Using Vegetation Indices to Link Climate and Household Welfare in Mali _with Jeremy Foltz_ - Current Draft: (09/24/25)
Abstract A large literature has estimated the effects of climate change on agricultural yields. That work assumes, but rarely tests, that changes in yields translate directly into changes in household wellbeing. Such assumptions elide the rather large literature on resilience to climate and other shocks. This work uses satellite derived yield data (GCVI) to analyze the relationship between agricultural productivity and household welfare, as measured by overall and food expenditure in the West African Sahel. We use remotely-sensed vegetation indices as a proxy for crop yields, as well as a granular household level dataset from 85\% of Mali's administrative communes between 2011 and 2019. Calculating commune-level indices for each growing season, we are then able to estimate their effects on household level expenditures for two growing seasons per household. As expected, we find that changes in yields have a statistically significant effect on overall household expenditure as well as other expenditure categories (food, leisure, etc.) for rural dwellers. This effect for rural dwellers is, however, relatively muted to changes in the values of vegetation indices, with GCVI to expenditure elasticities in the range of 0.10. Such low expenditure elasticities for changes in yields indicates a large degree of resilience to climate-related variation in agricultural productivity by Malian rural households. We draw conclusions based on this work for policy makers and for researchers interested in using remote sensed data for climate change and resilience research.

Works in Progress

Firm Behavior and Worker Welfare: Evidence From Jamaica

Tourism Shocks and Human Capital Accumulation in Jamaica