iiinova — where your digital self keeps evolving

Reposted by Erlend E Bø

Andreas Kotsadam @kotsadam.bsky.social · 22/09/2026

I most say this has been an absurd process. Even half of the authors withdrew their names. Yet it becomes a comment vs bs answer as usual. It’s impossible to set the record straight.

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Gabriel M Ahlfeldt @ahlfeldt.bsky.social · 13/09/2026

Spatial-equilibrium modelling now works directly in your browser. Choose a city, draw a policy on the map, and see results by grid cell in near real time. Here is a stylised Crossrail experiment in London. 🧵 sites.google.com/view/ahlfeld...

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Gabriel M Ahlfeldt @ahlfeldt.bsky.social · 31/07/2026

Thrilled our paper was accepted at @reveconstudies.bsky.social! Fond of our indirect-inference estimate of density disamenity—learning from macro, matching reduced-form causal moments in structural models @bsoeberlin.bsky.social github.com/Ahlfeldt/DPs/blob/main/GA_NBS_JR_-_SkyscraperRevolution.pdf

Title page and abstract of “The Skyscraper Revolution: Global Economic Development and Land Savings” by Gabriel M. Ahlfeldt, Nathaniel Baum-Snow, and Remi Jedwab. The abstract reports that removing height constraints raises welfare in developing economies, tall buildings foster urban growth and compactness, and indirect inference yields a density-disamenity elasticity of −0.11.

Figure A8, “Model Simulated Height Elasticities by Density Disamenity.” The graph plots population, built area, rent, and wage height elasticities against the density elasticity of amenities. Model curves match the reduced-form population and area moments near a density-disamenity elasticity of −0.11.

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Erlend E Bø @erlendebo-econ.bsky.social · 06/03/2026

"Buy to Let: The Role of Rental Investors in Housing Booms". A new paper in International Economic Review. In the paper I look at how Buy-to-let (BTL) investors affect housing price dynamics. onlinelibrary.wiley.com/doi/10.1111/... 1/7

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dirkkruegerier.bsky.social @dirkkruegerier.bsky.social · 24/01/2026

The International Economic Review has just published a new exciting paper by Erlend Eide Bø on Buy to Let: The Role of Rental Investors in Housing Booms. It is available through @WileyEconomics here: onlinelibrary.wiley.com/doi/10.1111/...

onlinelibrary.wiley.com

Buy to Let: The Role of Rental Investors in Housing Booms

How do rental investors affect housing price dynamics? I develop a search model that allows housing owners to invest in rental housing. The model matches the high investor share and housing price inc...

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Erlend E Bø @erlendebo-econ.bsky.social · 16/01/2026

I do think it's a little weird that QJE doesn't bother to list more than the first name if there are 3 or more authors. It's an economics journal, the full list of authors is almost always going to fit on one line.

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Erlend E Bø @erlendebo-econ.bsky.social · 09/12/2025

Work in the Research department at Statistics Norway, Researcher in Population Analysis and Forecasting wanted.

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Joe Fish @sadbusdriver.bsky.social · 13/11/2025

I'm going to try to put together a mini lit review on some of the recent institutional landlords papers. there are lots of papers, so I will be necessarily omitting many. Mostly focused on impacts on prices, and whether institutional landlords are killing homeownership and driving up rents.

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Erlend E Bø @erlendebo-econ.bsky.social · 13/11/2025

I have a new publication out, about the assessment of housing values for tax purposes. Written with my colleagues Nygård and Thoresen, it is about the current model used for valuing housing in the Norwegian wealth tax, and how to improve the model. link.springer.com/article/10.1...

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Karine Nyborg @karinenyborg.bsky.social · 13/11/2025

We're hiring! Postdoc positions in environmental econ, political econ, microeconomic theory, U of Oslo: econjobmarket.org/positions/12.... Brilliant & friendly colleagues, lovely city, beautiful nature, family friendly norms, Oslo's best views from our lunch room!

econjobmarket.org

EJM - Econ Job Market

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Martin B. Holm @martinbholm.bsky.social · 29/10/2025

🚨JOB ALERT🚨 We are hiring tenure-track assistant/associate professors in Economics at the University of Oslo. Fields: macro, micro theory, international trade, development Application deadline: November 30! More info at: econjobmarket.org/positions/11...

econjobmarket.org

EJM - Econ Job Market

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Simon Galle @simongalle.bsky.social · 11/09/2025

BI is hiring PhD candidates in economics. We offer: - a friendly and collegial department - strong faculty support during your PhD - access to very rich Norwegian microdata - a competitive salary - a strong track record in PhD placements. Please share #EconSky 🙏🙏 bi.easycruit.com/vacancy/3539...

bi.easycruit.com

Handelshøyskolen BI Programområdet - Doktorgrad - PhD Candidate in Economics

PhD Candidate in Economics

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Erlend E Bø @erlendebo-econ.bsky.social · 28/08/2025

Very interesting working paper on market concentration in housing supply by @leqonomics.bsky.social. Higher concentration among house builders gives lower construction, higher price volatility and lower construction volatility. Likely as relevant outside of the US. papers.ssrn.com/sol3/papers....

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Don Moynihan @donmoyn.bsky.social · 20/08/2025

New, from me: A Trump official is concocting mortgage fraud claims to target opposition. It's a classic authoritarian trick. Now they are doing it to Lisa Cook, the first Black female member of the Federal Reserve to push her to resign. 🧵 donmoynihan.substack.com/p/trump-uses...

donmoynihan.substack.com

Trump Uses Legal Threats to Push Federal Reserve Member To Resign

Trump administration's weaponization of the DOJ part of an authoritarian pattern

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Chye-Ching Huang @dashching.bsky.social · 13/05/2025

THREAD: the Ways & Means bill creates new opportunities for tax avoidance and evasion, adds complexity to the tax system, and increases filing burdens for low- & moderate-income families. My @taxlawcenter.org colleagues have more analysis coming, but here's a starter list (suggestions welcome):

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Johanna Rickne @johannarickne.bsky.social · 09/05/2025

🚨 REPLICATION REPORT UPDATE: One year ago, a tweet by John Holbein alerted me, @ollefolke.bsky.social, and @jopieboy.bsky.social to a paper with a shocking result about Sweden’s law criminalizing the purchase of sex.🧵

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Amanda Litman @amandalitman.bsky.social · 15/04/2025

Some stats from 100 days in on congestion pricing: - Complaints about car-honking are down 70% - The Holland Tunnel has 65% fewer delays at rush hour; time to get thru it is down 48% - 6 million fewer cars - Half as many traffic-related injuries - 1.5 million more visitors to BIDs year over year

curbed.com

How Well Is Congestion Pricing Doing? Very.

One hundred days in, honking is down; bus speeds are up.

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Sturla A K Løkken @sturla.bsky.social · 25/03/2025

Excited that our paper about the highly policy-relevant group of students on the margin between dropping out and completing high school is finally forthcoming in JOLE. @eckhoffandresen.bsky.social

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Erlend E Bø @erlendebo-econ.bsky.social · 20/03/2025

I think this paper makes good arguments for using automatic valuation methods in property tax assessments.

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Erlend E Bø @erlendebo-econ.bsky.social · 17/03/2025

Interesting on the strong influence of regulations on built form.

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Don Moynihan @donmoyn.bsky.social · 20/02/2025

An administration serious about fixing the deficit would not fire the people who collect the money needed to fix the deficit. donmoynihan.substack.com/p/doge-misma...

Don’t fire the guys collecting the money
Governments can’t function without revenue, so ensuring that the agency that collects taxes can do its job is pretty fundamental to maintaining state capacity. Under Biden, the IRS had received long-awaited and much needed funds that allowed it to rebuild after a period of sustained downsizing, and was becoming more effective.

The IRS represented a very simple test for the credibility of DOGE. Was it really interested in efficiency and state capacity? If so, you support the tax enforcement, the biggest return on investment in government, generating somewhere between $5-9 for every additional $1 spent on enforcement.

Or did DOGE want to minimize parts of the state that bothered billionaires?

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Erlend E Bø @erlendebo-econ.bsky.social · 27/01/2025

New working paper with two colleagues (Nygård & Thoresen). We look at how to value residential property for tax purposes. There are several different taxes on residential property. Mostly, authorities want tax valuations to reflect market value of the property. 1/5 www.ssb.no/en/priser-og...

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Kristoffer Berg @kristoberg.bsky.social · 07/01/2025

My paper on the relationship between inequality aversion and non-discrimination has just been published in Economica onlinelibrary.wiley.com/doi/full/10.... The main result is that inequality aversion in tax policy is overestimated when horizontal equity is ignored.

onlinelibrary.wiley.com

Revealing inequality aversion from tax policy and the role of non‐discrimination

Governments have increasing access to individual information, but they exploit little of it when setting taxes. This paper shows how to reveal inequality aversion from observed tax policy choices of ....

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Erlend E Bø @erlendebo-econ.bsky.social · 03/01/2025

Finland has downgraded most MDPI and Frontiers journals to junk. Seems reasonable. julkaisufoorumi.fi/en/news/chan...

julkaisufoorumi.fi

Changes to the classification

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Karine Nyborg @karinenyborg.bsky.social · 17/12/2024

U of Oslo hiring new Econ PhD students! Good salary, great work environment (English work language), brilliant colleagues, family-friendly norms, welfare benefits (paid parental leave, access to subsidized child care); great city by the fjord, hiking/skiing a short Metro ride away! shorturl.at/lETgr

jobbnorge.no

PhD Research Fellowships in Economics (271488) | University of Oslo

Job title: PhD Research Fellowships in Economics (271488), Employer: University of Oslo, Deadline: Wednesday, January 15, 2025

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Owen Zidar @omzidar.bsky.social · 05/12/2024

Pretty striking findings! www.parisschoolofeconomics.eu/app/uploads/...

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Jørgen Modalsli @modals.li · 26/11/2024

New working paper! How Business Income Measures Affect Income Inequality and the Tax Burden, with Aaberge, Francesconi and Vestad. Using Norwegian administrative data, we show that income inequality is much higher than commonly measured. Measurement matters! www.iza.org/publications...

$This paper presents estimates of income concentration and inequality for Norway using a new comprehensive measure of income, which identifies business income as it is earned by companies rather than when it is paid out as dividends to owners. We assemble several sources of high quality register data that allow us to account for multiple layers of business ownership across all companies between 2001 and 2018. Compared to official statistics, the new measure implies that the share of income attributable to the top 1\% of the distribution more than doubles and the Gini coefficient estimates increase by about 40\%. Our new measure identifies substantial tax regressivity for individuals in the top percentile, a feature that cannot be detected by standard income measures. For instance, while the share of gross income paid in taxes by individuals at the 99th percentile is about 36\% in 2016, the corresponding share paid by individuals in the top 1\% is 19\%.$

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Askill Harkjerr Halse @halsevesenet.bsky.social · 26/11/2024

Our paper on local incentives for electric vehicles is finally published in JAERE. This is maybe the most solid piece of research that i have co-authored so far. I hope this will inspire more transport economic research based on administrative microdata. www.journals.uchicago.edu/doi/10.1086/...

eur03.safelinks.protection.outlook.com

Local Incentives and Electric Vehicle Adoption | Journal of the Association of Environmental and Resource Economists: Vol 12, No 1

Abstract We study how the adoption of battery electric vehicles—a key technology for decarbonizing transportation—responds to two local incentives: road toll exemption and bus lane access. Combining r...

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Ari Hyytinen @artahy.bsky.social · 19/11/2024

"We find an additional $1 spent auditing taxpayers above the 90th income percentile yields more than $12 in revenue, while audits of below-median income taxpayers yield $5."

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Erlend E Bø @erlendebo-econ.bsky.social · 11/11/2024

Statistics Norway, the Norwigan statistics bureau (and my employer), is dropping Twitter. About time I would say. Norwegian blue checks reacting as moderately and politely as one would expect...

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Erlend E Bø @erlendebo-econ.bsky.social · 11/11/2024

TIL that to purchase a car in Beijing, you need to win a quota lottery. The reason is to restrict the growth of car traffic.

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Frikk Nesje @frikknesje.bsky.social · 01/11/2024

* Publication day * Two papers that I am really proud of in print on the same day. One is on market-based discount rates and whether they capture preferences for the future, the other on how to price carbon. Check them out! Summaries to come later. #EconSky

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Erlend E Bø @erlendebo-econ.bsky.social · 09/10/2024

As with the Norwegian tax system. It isn't the mortgage interest deduction that favors owners over renters, it's the lack of tax on imputed housing income. That should be corrected. onlinelibrary.wiley.com/doi/full/10....

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Erlend E Bø @erlendebo-econ.bsky.social · 01/10/2024

In my housing column in Norwegian newspaper DN, I this time discuss rental regulation, based on Diamond, McQuade & Qian (2019).

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Erlend E Bø @erlendebo-econ.bsky.social · 30/09/2024

New version of my paper on Buy-to-let investors available. papers.ssrn.com/sol3/papers....

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