Contact
Nils Landén Mammos
Department of Economics, Stockholm University
I am a PhD candidate at the Department of Economics, Stockholm University.
My research covers household finance and macroeconomics, with a specific focus on how households and firms respond to macroprudential and monetary policies.
I will be on the academic job market in 2025/2026. Here is my CV.
The Bank of Mom and Dad: Intergenerational Transfers and Macroprudential Regulation [latest version HERE]
Abstract: I study how parental transfers shape first-time home purchases and the transmission of borrower-based policy in Sweden. Linking deed-level records on parents’ home equity extractions to their children’s first-home transactions, I identify transfers for the down payment and quantify their effects on housing and mortgage choices. Transfers raise purchase prices, relax down payment constraints, and leave recipients with higher debt-to-income ratios alongside a roughly 11% net housing wealth gain in the year after purchase. Exploiting the 2010 loan-to-value (LTV) cap, I show attenuated pass-through for buyers with access to parental equity: they sustain purchasing power while keeping LTV at (or near) the cap, consistent with a shift from collateral to payment constraints. To clarify why transfers arise, I provide evidence on the supply of transfers: a shift–share instrument for parental house prices shows that a 10% shock to prices increases the probability of transfers with 1 pp. The findings highlight that borrower-based rules calibrated on individual balance sheets overlook the parental balance sheet, with implications for macroprudential design.
Housing Collateral, Macroprudential Policies, and Corporate Investment
[latest version HERE]
Abstract: I study how borrower‑based macroprudential policies transmit to real investment via housing collateral. Leveraging a novel owner-firm linked panel covering all closely held Swedish corporations and their controlling households (2006–2020), I exploit the roll-out of an 85% LTV cap (2010) and two amortization requirements tied to LTV (2016) and DTI (2018) as quasi‑experimental shocks to owners’ borrowing capacity. In an event‑study framework, I find that firms whose owners were subject to the borrowing thresholds reduce their annual fixed investment rate by 3 pp on average, while home equity extractions by these households fall by around 5%. The investment drag is concentrated among small, intangible‑intensive, and high‑productivity firms, whereas land‑rich or larger firms remain largely unaffected. The results underscore a design trade-off in macroprudential policy: limiting household leverage may come alongside reduced productive investment and weaker dynamism.
Monetary policy and the housing market under the microscope (joint with Jesper Böjeryd, Mathias Klein, and Roine Vestman)
Mortgage relief programs as stabilization tools (joint with Märta Almgren, and Matthias Hänsel)