Ananya Sen
@ananyasen.bsky.social
Associate Professor at Carnegie Mellon University (Heinz College). Interested in Platforms and Technology. Previously, Post Doc at MIT and PhD student at Toulouse School of Economics. Website: https://sites.google.com/view/ananyasen/home
Reposted by Ananya Sen
#QJE Feb 2025, #9, “The Long-Run Impacts of Public Industrial Investment on Local Development and Economic Mobility: Evidence from World War II,” by Garin (@andygarin.bsky.social) and Rothbaum: doi.org/10.1093/qje/...
The Long-Run Impacts of Public Industrial Investment on Local Development and Economic Mobility: Evidence from World War II*
Abstract. This article studies the long-run effects of government-led construction of manufacturing plants on the regions where they were built and on indi
doi.org
January 12, 2025 at 12:11 PM
#QJE Feb 2025, #9, “The Long-Run Impacts of Public Industrial Investment on Local Development and Economic Mobility: Evidence from World War II,” by Garin (@andygarin.bsky.social) and Rothbaum: doi.org/10.1093/qje/...
Thank you, Kristina!
December 18, 2024 at 1:45 PM
Thank you, Kristina!
Takeaway: A key trade-off for policymakers (e.g., DMA) and managers to keep in mind: Quick wins with external data vs. building self-sufficient internal capabilities. ⚖️
Deep gratitude to the Management Science team, reviewers, & everyone who offered feedback. 🙏
(6/6)
Deep gratitude to the Management Science team, reviewers, & everyone who offered feedback. 🙏
(6/6)
December 18, 2024 at 3:05 AM
Takeaway: A key trade-off for policymakers (e.g., DMA) and managers to keep in mind: Quick wins with external data vs. building self-sufficient internal capabilities. ⚖️
Deep gratitude to the Management Science team, reviewers, & everyone who offered feedback. 🙏
(6/6)
Deep gratitude to the Management Science team, reviewers, & everyone who offered feedback. 🙏
(6/6)
2️⃣ The trade-off: Over time, the negative impact of removing the external API halved. Why? Relying on external data limits internal data accumulation—critical for long-term product improvement. (5/)
December 18, 2024 at 3:05 AM
2️⃣ The trade-off: Over time, the negative impact of removing the external API halved. Why? Relying on external data limits internal data accumulation—critical for long-term product improvement. (5/)
Key Findings: 🧑🔬
1️⃣ The value: Removing external data access by removing API input led to ↓ a search-suggestion CTR of 4.6%. This drop has downstream impact: A 10% ↓ in suggestion CTR → 1.85% ↓ in CTR on top search results on the main search page. (4/)
1️⃣ The value: Removing external data access by removing API input led to ↓ a search-suggestion CTR of 4.6%. This drop has downstream impact: A 10% ↓ in suggestion CTR → 1.85% ↓ in CTR on top search results on the main search page. (4/)
December 18, 2024 at 3:05 AM
Key Findings: 🧑🔬
1️⃣ The value: Removing external data access by removing API input led to ↓ a search-suggestion CTR of 4.6%. This drop has downstream impact: A 10% ↓ in suggestion CTR → 1.85% ↓ in CTR on top search results on the main search page. (4/)
1️⃣ The value: Removing external data access by removing API input led to ↓ a search-suggestion CTR of 4.6%. This drop has downstream impact: A 10% ↓ in suggestion CTR → 1.85% ↓ in CTR on top search results on the main search page. (4/)
The study involved 2M+ users over 108 days. Half of them saw autocomplete search suggestions from both the leading external API + our partner firm. The other half? Just our partner firm’s autocomplete suggestions (i.e., no external data through API). (3/)
December 18, 2024 at 3:05 AM
The study involved 2M+ users over 108 days. Half of them saw autocomplete search suggestions from both the leading external API + our partner firm. The other half? Just our partner firm’s autocomplete suggestions (i.e., no external data through API). (3/)
We explore how data sharing (through a leading search engine’s autocomplete API) affects smaller players’ product performance. 📊
We conducted a large-scale field experiment with a tech firm in the search market. (2/)
We conducted a large-scale field experiment with a tech firm in the search market. (2/)
December 18, 2024 at 3:05 AM
We explore how data sharing (through a leading search engine’s autocomplete API) affects smaller players’ product performance. 📊
We conducted a large-scale field experiment with a tech firm in the search market. (2/)
We conducted a large-scale field experiment with a tech firm in the search market. (2/)