Jacob Gellman
@jacobgellman.com
Assistant Professor at Oregon State University. Research: Economics of climate risk and adaptation. PhD from University of California, Santa Barbara. https://jacobgellman.com.
See also Watson, Guettabi, Reimer (2020), "Universal Cash and Crime" in ReStat.
December 10, 2025 at 8:54 PM
See also Watson, Guettabi, Reimer (2020), "Universal Cash and Crime" in ReStat.
Prospective PhD student interested in environmental, agricultural, or development economics? Consider applying to Oregon State University.
Video explainer on our PhD program:
www.youtube.com/playlist?lis...
Video explainer on our PhD program:
www.youtube.com/playlist?lis...
December 4, 2025 at 12:07 AM
Prospective PhD student interested in environmental, agricultural, or development economics? Consider applying to Oregon State University.
Video explainer on our PhD program:
www.youtube.com/playlist?lis...
Video explainer on our PhD program:
www.youtube.com/playlist?lis...
These are huge effect sizes.
October 27, 2025 at 6:14 PM
These are huge effect sizes.
M. Nolan Grey has a great breakdown of California's SB 79, the bill signed last Friday to upzone neighborhoods and add housing near transit.
mnolangray.substack.com/p/everything...
mnolangray.substack.com/p/everything...
October 15, 2025 at 11:23 PM
M. Nolan Grey has a great breakdown of California's SB 79, the bill signed last Friday to upzone neighborhoods and add housing near transit.
mnolangray.substack.com/p/everything...
mnolangray.substack.com/p/everything...
Increased immigration to the United States since 1965 may have increased innovation and wages by 5 percent.
www.aeaweb.org/articles?id=...
www.aeaweb.org/articles?id=...
September 29, 2025 at 2:55 PM
Increased immigration to the United States since 1965 may have increased innovation and wages by 5 percent.
www.aeaweb.org/articles?id=...
www.aeaweb.org/articles?id=...
I was not aware that a major driver of Indonesian deforestation is... American RV demand
www.nytimes.com/2025/08/19/w...
www.nytimes.com/2025/08/19/w...
August 19, 2025 at 7:46 PM
I was not aware that a major driver of Indonesian deforestation is... American RV demand
www.nytimes.com/2025/08/19/w...
www.nytimes.com/2025/08/19/w...
I didn’t appreciate that a downtown MAX tunnel in Portland would speed up *the whole system* by alleviating the main choke point.
Cool video about it:
youtu.be/OF2-lnj8vEQ
Cool video about it:
youtu.be/OF2-lnj8vEQ
August 2, 2025 at 7:59 PM
I didn’t appreciate that a downtown MAX tunnel in Portland would speed up *the whole system* by alleviating the main choke point.
Cool video about it:
youtu.be/OF2-lnj8vEQ
Cool video about it:
youtu.be/OF2-lnj8vEQ
What prompts interest in climate change? Batzer et al. explore Google search data to answer.
• Heatwaves drive interest more than wildfires or hurricanes.
• Climate change interest is seasonal.
• Search interest jumps temporarily after extreme weather events.
• Heatwaves drive interest more than wildfires or hurricanes.
• Climate change interest is seasonal.
• Search interest jumps temporarily after extreme weather events.
July 31, 2025 at 5:44 PM
What prompts interest in climate change? Batzer et al. explore Google search data to answer.
• Heatwaves drive interest more than wildfires or hurricanes.
• Climate change interest is seasonal.
• Search interest jumps temporarily after extreme weather events.
• Heatwaves drive interest more than wildfires or hurricanes.
• Climate change interest is seasonal.
• Search interest jumps temporarily after extreme weather events.
Top states by EV or plug-in electric hybrid share (as of 2023):
CA: 4.5%
DC: 3.8%
HI: 3.0%
WA: 2.8%
OR: 2.4%
NJ: 2.4%
CA: 4.5%
DC: 3.8%
HI: 3.0%
WA: 2.8%
OR: 2.4%
NJ: 2.4%
July 22, 2025 at 6:43 PM
Top states by EV or plug-in electric hybrid share (as of 2023):
CA: 4.5%
DC: 3.8%
HI: 3.0%
WA: 2.8%
OR: 2.4%
NJ: 2.4%
CA: 4.5%
DC: 3.8%
HI: 3.0%
WA: 2.8%
OR: 2.4%
NJ: 2.4%
Rent freezes are a major part of Zohran Mamdani's platform for NYC mayor.
A nice review of the literature on the effects of rent control is Kholodilin (2024, J. Hous. Econ.)
www.sciencedirect.com/science/arti...
A nice review of the literature on the effects of rent control is Kholodilin (2024, J. Hous. Econ.)
www.sciencedirect.com/science/arti...
June 13, 2025 at 2:44 AM
Rent freezes are a major part of Zohran Mamdani's platform for NYC mayor.
A nice review of the literature on the effects of rent control is Kholodilin (2024, J. Hous. Econ.)
www.sciencedirect.com/science/arti...
A nice review of the literature on the effects of rent control is Kholodilin (2024, J. Hous. Econ.)
www.sciencedirect.com/science/arti...
First Street Foundation projected unhealthy air days over the next 15 years:
April 18, 2025 at 12:59 AM
First Street Foundation projected unhealthy air days over the next 15 years:
One consequence of restrictive development in urban cores:
Most of the employment growth in the western US since 1990 has taken place in high wildfire hazard areas.
Via Joiner, Walls, Wibbenmeyer 2025.
media.rff.org/documents/Re...
Most of the employment growth in the western US since 1990 has taken place in high wildfire hazard areas.
Via Joiner, Walls, Wibbenmeyer 2025.
media.rff.org/documents/Re...
April 14, 2025 at 6:22 PM
One consequence of restrictive development in urban cores:
Most of the employment growth in the western US since 1990 has taken place in high wildfire hazard areas.
Via Joiner, Walls, Wibbenmeyer 2025.
media.rff.org/documents/Re...
Most of the employment growth in the western US since 1990 has taken place in high wildfire hazard areas.
Via Joiner, Walls, Wibbenmeyer 2025.
media.rff.org/documents/Re...
People have very low willingness to privately and voluntarily reduce their carbon footprint.
Via Dechezleprêtre et al. (2025), "Fighting Climate Change: International Attitudes toward Climate Policies"
www.aeaweb.org/articles?id=...
Via Dechezleprêtre et al. (2025), "Fighting Climate Change: International Attitudes toward Climate Policies"
www.aeaweb.org/articles?id=...
March 31, 2025 at 8:37 PM
People have very low willingness to privately and voluntarily reduce their carbon footprint.
Via Dechezleprêtre et al. (2025), "Fighting Climate Change: International Attitudes toward Climate Policies"
www.aeaweb.org/articles?id=...
Via Dechezleprêtre et al. (2025), "Fighting Climate Change: International Attitudes toward Climate Policies"
www.aeaweb.org/articles?id=...
What’s the longest footnote you have ever read
March 27, 2025 at 7:32 PM
What’s the longest footnote you have ever read
The funny thing about the logged x-axis is it shows that utility is concave in wealth
March 25, 2025 at 8:43 PM
The funny thing about the logged x-axis is it shows that utility is concave in wealth
This is so odd to me. CoreLogic was a much better name.
March 24, 2025 at 7:51 PM
This is so odd to me. CoreLogic was a much better name.
Political Ideology and US EV adoption, by Davis, Li, Springel.
Over 2012-23, EV adoption was driven by left-leaning areas, suggesting challenges in wider adoption.
Will be interesting to see how Elon Musk might drive apolitical and right-wing consumers to adopt EVs.
www.nber.org/papers/w33591
Over 2012-23, EV adoption was driven by left-leaning areas, suggesting challenges in wider adoption.
Will be interesting to see how Elon Musk might drive apolitical and right-wing consumers to adopt EVs.
www.nber.org/papers/w33591
March 24, 2025 at 7:24 PM
Political Ideology and US EV adoption, by Davis, Li, Springel.
Over 2012-23, EV adoption was driven by left-leaning areas, suggesting challenges in wider adoption.
Will be interesting to see how Elon Musk might drive apolitical and right-wing consumers to adopt EVs.
www.nber.org/papers/w33591
Over 2012-23, EV adoption was driven by left-leaning areas, suggesting challenges in wider adoption.
Will be interesting to see how Elon Musk might drive apolitical and right-wing consumers to adopt EVs.
www.nber.org/papers/w33591
Earth's orbit is an open access resource.
Satellites debris creates congestion and, unchecked, could render regions of orbit unusable ("Kessler syndrome").
@akhilrao.bsky.social and Rondina (2025) characterize the conditions under which this could occur.
www.journals.uchicago.edu/doi/10.1086/...
Satellites debris creates congestion and, unchecked, could render regions of orbit unusable ("Kessler syndrome").
@akhilrao.bsky.social and Rondina (2025) characterize the conditions under which this could occur.
www.journals.uchicago.edu/doi/10.1086/...
March 19, 2025 at 7:41 PM
Earth's orbit is an open access resource.
Satellites debris creates congestion and, unchecked, could render regions of orbit unusable ("Kessler syndrome").
@akhilrao.bsky.social and Rondina (2025) characterize the conditions under which this could occur.
www.journals.uchicago.edu/doi/10.1086/...
Satellites debris creates congestion and, unchecked, could render regions of orbit unusable ("Kessler syndrome").
@akhilrao.bsky.social and Rondina (2025) characterize the conditions under which this could occur.
www.journals.uchicago.edu/doi/10.1086/...
Cool results by @reidtaylor.bsky.social, Erich Muehlegger.
"The Effects of Competition in the Retail Gasoline Industry"
• Entry of gas stations lowers nearby prices.
• Effects are persistent.
• Effects decline w/ distance.
• No effect following nearby exits.
www.nber.org/papers/w33569
"The Effects of Competition in the Retail Gasoline Industry"
• Entry of gas stations lowers nearby prices.
• Effects are persistent.
• Effects decline w/ distance.
• No effect following nearby exits.
www.nber.org/papers/w33569
March 17, 2025 at 7:16 PM
Cool results by @reidtaylor.bsky.social, Erich Muehlegger.
"The Effects of Competition in the Retail Gasoline Industry"
• Entry of gas stations lowers nearby prices.
• Effects are persistent.
• Effects decline w/ distance.
• No effect following nearby exits.
www.nber.org/papers/w33569
"The Effects of Competition in the Retail Gasoline Industry"
• Entry of gas stations lowers nearby prices.
• Effects are persistent.
• Effects decline w/ distance.
• No effect following nearby exits.
www.nber.org/papers/w33569
Thinning and prescribed burns mitigate the severity of future wildfires. But we have lacked great cost estimates, which are important for prioritization of operations.
New paper from D. Wear,
M. Wibbenmeyer, and Y. Zhu quantifies these costs throughout California.
media.rff.org/documents/WP...
New paper from D. Wear,
M. Wibbenmeyer, and Y. Zhu quantifies these costs throughout California.
media.rff.org/documents/WP...
February 13, 2025 at 7:07 PM
Thinning and prescribed burns mitigate the severity of future wildfires. But we have lacked great cost estimates, which are important for prioritization of operations.
New paper from D. Wear,
M. Wibbenmeyer, and Y. Zhu quantifies these costs throughout California.
media.rff.org/documents/WP...
New paper from D. Wear,
M. Wibbenmeyer, and Y. Zhu quantifies these costs throughout California.
media.rff.org/documents/WP...
First Street Foundation estimates that "unrestricted risk-based insurance pricing would drive a 29.4% increase in average premiums by 2055 -- comprising an 18.4% correction for current underpricing and an 11% increase from growing climate risks."
assets.riskfactor.com/media/The%20...
assets.riskfactor.com/media/The%20...
February 3, 2025 at 9:53 PM
First Street Foundation estimates that "unrestricted risk-based insurance pricing would drive a 29.4% increase in average premiums by 2055 -- comprising an 18.4% correction for current underpricing and an 11% increase from growing climate risks."
assets.riskfactor.com/media/The%20...
assets.riskfactor.com/media/The%20...
What are the economic effects of wildfire smoke?
Matt Wibbenmeyer and I recently reviewed the impacts on health, mortality, labor markets, and measures of general well-being.
Just published in Review of Environmental Economics and Policy (REEP):
www.journals.uchicago.edu/doi/10.1086/...
Matt Wibbenmeyer and I recently reviewed the impacts on health, mortality, labor markets, and measures of general well-being.
Just published in Review of Environmental Economics and Policy (REEP):
www.journals.uchicago.edu/doi/10.1086/...
January 10, 2025 at 8:58 PM
What are the economic effects of wildfire smoke?
Matt Wibbenmeyer and I recently reviewed the impacts on health, mortality, labor markets, and measures of general well-being.
Just published in Review of Environmental Economics and Policy (REEP):
www.journals.uchicago.edu/doi/10.1086/...
Matt Wibbenmeyer and I recently reviewed the impacts on health, mortality, labor markets, and measures of general well-being.
Just published in Review of Environmental Economics and Policy (REEP):
www.journals.uchicago.edu/doi/10.1086/...
Preventive management, prescribed burns, vegetation treatment, buffers around communities, building codes, and not building in high risk areas to begin with...
January 8, 2025 at 6:13 PM
Preventive management, prescribed burns, vegetation treatment, buffers around communities, building codes, and not building in high risk areas to begin with...
Palisades fire:
- 30,000 residents evacuated
- 13,000 structures under threat
- 28,300 households without power
- Power preemptively shut off for 15,000 more utility customers in SoCal
apnews.com/article/wild...
- 30,000 residents evacuated
- 13,000 structures under threat
- 28,300 households without power
- Power preemptively shut off for 15,000 more utility customers in SoCal
apnews.com/article/wild...
January 8, 2025 at 4:26 AM
Palisades fire:
- 30,000 residents evacuated
- 13,000 structures under threat
- 28,300 households without power
- Power preemptively shut off for 15,000 more utility customers in SoCal
apnews.com/article/wild...
- 30,000 residents evacuated
- 13,000 structures under threat
- 28,300 households without power
- Power preemptively shut off for 15,000 more utility customers in SoCal
apnews.com/article/wild...