Working Papers
Less is More in Online Giving: Using Choice Architecture to Improve Donation Outcomes (with Yohanes Eko Riyanto and Masyhur Hilmy)Â [R&R Management Science]
This paper examines the optimal choice set size in an online donation setting. We randomize the number of beneficiaries (3, 8, or 10) per screen (screen size) in a field experiment. Across screens, the total number and value of donations are highest in the 8-beneficiary treatment (pre-registered). To explore underlying mechanisms, we conduct an exploratory analysis and find that the results are largely driven by differences in refresh rates and beneficiary exposure (choice overload and search behavior). In the 3-beneficiary treatment, donors refresh twice as often but view only half as many beneficiaries compared to the 8- and 10-beneficiary treatments (12 vs 25). Within screens, we classify self-written beneficiary narratives using both manual and machine learning methods to extract key characteristics. Beneficiaries perceived as more deserving receive larger donations (exploratory). Finally, we observe strong evidence of female in-group bias (pre-registered), likely due to the heightened saliency of female poverty among female donors in a male breadwinner context. This study highlights low-cost choice architecture adjustments to maximize donations.
Conference Presentations: NEUDC '21
*co-author presentations
Local Elites, Political Land Rents, and Incentives for Development: Evidence from Indonesia [updated version] [New draft! Under review]
Rural development policy is often implemented by local leaders but it is unclear how to elicit optimal effort. This paper examines the effects of awarding higher political land rents. Using a spatial regression discontinuity, I exploit a historical policy that granted elected village chiefs, cultivation rights over village rice land (bengkok) on one side of a border, but not the other. Chiefs generate higher local revenue, public goods, and schooling. Using original surveys, I trace this to higher chief quality, selection, and, suggestively, service motivation. Awarding leaders a stable, local revenue stream can have persistently positive effects on governance and development.
Media: World Bank Development Impact Blog Post, March 2020 Virtual PacDev Presentation (Berkeley)
Conference Presentations: NBER Fall Dev' 22, ASREC Europe '22 (London), ASREC Australasia '22 (Monash), AASLE'22 (UTokyo), SIOE'21, MWIEDC '20, CSAE '20, PacDev '20, NEUDC '20
Interethnic Proximity and Political Development (with Chun Chee Kok, Danial Shariat, Abu Siddique, and Shunsuke Tsuda) (New draft! Under review. Previously circulated as my Ph.D. thesis chapter: "The Effects of Long-Term Ethnic Segregation in Malaysia)
We exploit a population resettlement program of ethnic minorities in Malaysia to identify long-run effects of interethnic proximity on economic and political development. From 1948 to 1951, the colonial government moved 500,000 rural Chinese into hundreds of isolated, mono-ethnic camps. In ethnic majority Malay communities adjacent to these camps, we find greater economic prosperity and lower vote shares for the ethno-nationalist Malay party. Effects are stronger in areas with historical, interethnic economic complementarities. Primary survey data suggests that trust-building and social integration were key channels. Our findings highlight the importance of persistent, localized contact in the co-evolution of economic and political development.
Conference Presentations: PacDev 2024 (Stanford), Korean EHA '23 (Seoul), APSA '23 (LA), VHPE '21
Civilian Killings and Long-Run Development: Evidence from the Korean War (joint with Yeonha Jung and Sangyoon Park) [new! Under review]
This study examines the economic legacy of civilian killings during the Korean War, which disproportionately targeted local elites, educated individuals, and their families. For identification, we exploit plausibly exogenous variation in the spatial distribution of killings driven by unanticipated UN military operations. Evidence suggests that local exposure to civilian killings had a persistently negative impact on contemporary development. As a key mechanism, we find that civilian killings led to a relative decline in structural transformation, potentially due to reduced investments in human capital.
Communities of Commerce: The Legacy of Chinese Immigration on Indonesian Development (with Sebastian Ellingsen and Quoc-Anh Do)
[new! draft avail. upon request]
Ethnic minorities have played an out-sized role in economic development. This paper studies one of the most prominent but understudied cases, the ethnic Chinese minority on Java, Indonesia in the 21st century. We exploit plausibly exogenous distances to portage sites that have not been accessible by sea for three centuries, due to extensive silting. We find strong positive effects on local economic development. In districts with historically higher ethnic Chinese shares, all villagers are wealthier on average. We trace this to the persistently important role of Chinese in trade and commerce. Districts have, today, a higher (lower) employment share in services (agriculture) and all firms report higher sales. We trace these positive effects to a larger financial industry. Furthermore, sub-sectors more closely linked to traditional ethnic Chinese sectors continue to employ a larger share of individuals. Our findings suggest that ethnic minorities, despite their small numbers, can play a positive, out-sized role in modern-day development, with spillovers that benefit the entire local population.
Conference Presentations: Aus Clio Sept 2024*
Selected Works In Progress
Inter-Ethnic Proximity and Competition in Southeast Asia (with Chun Chee Kok, Abu Siddique, and Shunsuke Tsuda) [In the field]
Nation building is crucial for economic development. Doing so, however, is particularly challenging for ethnically diverse nation-states (Alesina and Zhuvarskaya 2011). In this project, we focus on one aspect -- the extent to which nation building efforts are shaped by (the lack of) macro-level contact across ethnic groups and the attendant, downstream impacts on inter-ethnic political and economic competition. A crucial problem is that individuals usually have a choice over where they live, and, by extension, whom they interact with. We circumvent this by studying a large-scale colonial resettlement program that created 550 mono-ethnic villages; many of which still exist today. Plausibly exogenous placement of these villages offers us persistent inter-village variation in ethnic proximity and contact. Using this variation, we study long-run effects on inter-ethnic competition and national identity. To do so, we have secured funding to conduct an original, large-scale, in-person, retrospective survey. The final survey will measure, amongst others, inter-ethnic contact rates and attitudes.
The Unintended Consequences of Technical Change: Evidence from the Green Revolution in Indonesia (joint with Yeonha Jung and Uyseok Lee)
Language, Nation-Building, and Economic Development: Evidence from Indonesia (with Arya Gaduh and Chun Chee Kok)
Transportation Networks and Inter-Group Contact (with Thomas Gautier, Harrison Mitchell, and Alex Rothenberg)