2026 Real Estate and Urban Economics Conference
SAFE · Florida International University · Copenhagen Business School
24 September 2026
Fagereng et al. (2020) and Bach et al. (2020) document substantial heterogeneity in returns to wealth
These differences can arise due to risk tolerance or skill
But those explanations do not fit necesarily fit to housing, an asset that households both invest in and consume.
Bo’s earned higher capital gains. About 1.36 percentage points a year, or approximately 15 percent over 10 years.
Anna’ earned a higher rental yield. This offsets the lower capital gains she earned, leaving total returns approximately equalized.
Property-level returns. The returns-to-wealth literature measures housing returns from price indices with a uniform rental yield (Fagereng et al. 2020; Bach et al. 2020). We observe realized capital gains for each dwelling and a location-specific yield.
Income and the composition of returns. Studies of return gaps by gender, race and wealth stop at the level of the return (Goldsmith-Pinkham and Shue 2023; Kermani and Wong 2026; Wolff 2022).
Access to appreciating markets. We connect spatial sorting by income (Diamond and Gaubert 2022; Gupta et al. 2025) to differences in the composition of returns and use two credit reforms to study why households locate in different areas.
About 218,000 repeat sales, matched to the buyer’s income, wealth, demographics and the dwelling’s characteristics.
Income rank is the buyer’s position in the household income distribution within year and age cohort, from a three-year average around the purchase.
Capital gains are annualized real log price changes between purchase and sale, unlevered. Rental yields are imputed by location from the 1999 register cross-section of rents and validated against private-market rents for 2015–2022.
Annualized real capital gains are close to linear in income rank across the whole distribution.
0.017 pp per rank point, or 1.36 pp between the 90th and 10th percentiles
Binned means of annualized real capital gains by income rank.
Y_{i}=\beta_0+\beta_1\text{Income Rank}_{i} + X_{i}\Gamma + \epsilon_{i}
Property and buyer characteristics and purchase- and sale-year fixed effects leave most of the coefficient intact.
Municipality fixed effects remove two-thirds, postcode fixed effects four-fifths. Postcode-by-year fixed effects leave a coefficient statistically indistinguishable from zero.
A Gelbach decomposition attributes 88 percent of the movement in the coefficient to location, against 6 percent for timing and 5 for buyer characteristics.
Coefficient on income rank across specifications, 95 percent confidence intervals. Controls are cumulative. Location fixed effects as in Goldsmith-Pinkham and Shue (2023) and Kermani and Wong (2026). Timing-by-location effects absorb local cycles (Ferreira and Gyourko 2023).
The total-return gradient is statistically insignificant and stable across specifications.
Using an internal-rate-of-return measure that nets out carrying costs it is −0.031.
Capital gains and rental yields move in opposite directions across locations (Amaral et al. 2025).
Additive measure: capital gain plus a location rental yield, imputed at postcode and municipality level from the 1999 register cross-section of rents as rent per square meter over price per square meter. Controls added progressively.
Higher-income buyers realize their return as capital gains.
Lower-income buyers realize the same total as housing services, a continuous flow that they consume.
Composition of returns is what differs across the income distribution.
The capital gain accrues directly as an asset value. In Denmark, capital gains on housing is not taxed.
The rental yield is consumed as housing services. For that to show up as wealth, households would need to actively adjust their savings
Equal total returns therefore need not imply equal wealth accumulation.
Anna chooses to stay
A location bundles many things that are hard to measure, such as proximity to family and jobs. Anna may prefer where she lives, at the price it costs.
Birthplace attachment (Diamond 2016), moving and search costs (Bergman et al. 2020), local networks (Koenen and Johnston 2025).
Anna cannot move
Housing is indivisible and financed with mortgage debt. Payment-to-income and loan-to-value limits rule out the homes she would otherwise buy.
Indivisibility and minimum consumption (Parkhomenko 2026), income-inelastic housing demand (Gaubert and Robert-Nicoud 2025), down-payment limits and location (Gupta et al. 2025).
Today: Do limits bind, and does relaxing them change who buys where?
Share of same-year transactions a buyer could finance under maximum borrowing.
High-growth areas are municipalities in the top quintile of average capital gains.
Credit changes who owns
Looser credit lets constrained households buy. Ownership responds, prices barely move (Kaplan et al. 2020).
Credit changes what it costs
With a fixed stock, looser credit raises every bid. Prices absorb the shock and the ranking of bidders is unchanged (Greenwald and Guren 2025).
From 2003 Danish borrowers could defer amortization for ten years. Payments on the same loan fell by about 20 percent, relaxing the payment-to-income limit. Interest-only loans financed more than 60 percent of purchases across the income distribution.
On the reform’s effect on mortgage debt and homeownership, see Bäckman and Khorunzhina (2024), Bäckman and Lutz (2025) and Bäckman and Lutz (2020).
If credit changes who owns
The share of lower-income buyers in high-growth municipalities rises after 2003.
If credit changes what it costs
Prices in high-growth municipalities rise after 2003. The share of lower-income buyers does not.
Lownc_{imt} = \alpha_m + \gamma_t + \sum_{k=1998,\, k\neq 2003}^{2010} \beta_k (HighGrowth_m \times \mathbf{1}_{t=k}) + X_{it}\Gamma + \epsilon_{imt}
Event-study coefficients for high-growth municipalities relative to others. 95 percent confidence intervals. High-growth municipalities are the top fifth by 1997–2002 price growth. The 2016 macroprudential tightening in Copenhagen and Aarhus shows the same pattern in reverse.
Where households live and consume is also where their returns come from.
Thank you!
Claes Bäckman Leibniz Institute for Financial Research SAFE claes.backman@gmail.com
A Gelbach (2016) decomposition attributes the shrinkage in the coefficient to groups of controls independently of their order.
88% location, under postcode fixed effects. Timing 6 percent, buyer characteristics 5, property characteristics 1.
A statement about what accounts for the gradient statistically, not about what causes it.
Yields are imputed at the postcode and municipality level from the 1999 register cross-section of unit-level rents, as rent per square meter over price per square meter
Decompose each asset’s contribution to the P90–P10 gap in the return on gross assets into what households hold, what they earn, and the interaction, following Kuhn et al. (2020).
Under the additive measure the within term is zero by construction. Housing still contributes 1.32 pp, entirely through composition.
Under the IRR the negative gradient turns the within and interaction terms negative and housing’s contribution falls to 0.32.
Within the Capital region, higher income predicts a slightly lower gain, −0.004 per rank point with postcode and timing fixed effects.
The national gradient reflects exposure to high-growth locations and not better within-market performance.
Average annualized capital gain by income rank, capital region and rest of Denmark.
A candidate explanation has to both predict capital gains and differ between Anna and Bo.
Market timing: predicts yes, differs barely, product near zero.
Municipality: predicts yes, differs yes, product large. 45 percent of top-decile buyers purchase in the capital region against 27 percent of bottom-decile buyers.
With a fixed stock of dwellings allocated to the highest bidders, a proportional increase in borrowing capacity raises every bid and the clearing price but leaves the ranking of bids unchanged. Composition can move only where supply responds. The evidence is consistent with this reading and inconsistent with a simple credit-access account. We do not isolate a single cause.
Inverse housing supply elasticity (Guren et al. 2021). Fixed supply and persistent price growth in high-price cities (Gyourko et al. 2013). Left: by municipality. Right: by the income rank of buyers, national and regional prices. The variable is an inverse elasticity.
Moving from the 10th to the 90th percentile raises the standard deviation of log house-price growth by about 0.008. At a benchmark Sharpe ratio of 0.36 (Doeswijk et al. 2020), the implied premium is at most 21 percent of the baseline gap. ¨
Left: implied annual rental yield. Right: total return. The IRR nets out maintenance, property tax and transaction costs.
Capital gains imputed for properties that sold once, by income rank, binned means and regression coefficients.