We study reforms of non-linear income tax systems from a political economy perspective. We present a median voter theorem for monotonic tax reforms, reforms so that the change in the tax burden is a monotonic function of income. We also provide an empirical analysis of tax reforms, with a focus...

Are reforms towards individual taxation politically feasible? Are they desirable from a welfare perspective? We develop a method to answer such questions and apply it to the US federal income tax since the 1960s. Main findings are: As of today, Pareto-improvements require a move away from joint...

Institutional funds have concentrated ownership by a few institutional investors, infrequent outflows and essentially no leverage. Yet using unique granular data on the bond holdings of institutional funds, we show that their trading behavior is strongly procyclical: they actively move into...

In many democracies, unemployed and low-income citizens are less willing to vote. Can unconditional cash transfers weaken the link between income and turnout? We study a unique experiment in Finland, which randomly assigned a sizable group of unemployed to basic income for two years (2017-19)....

This paper examines whether income transparency - the public release of citizens' income information - affects support for redistribution. We leverage a quasi-experiment in Finland, where every year on the so-called tax day, the authorities release income information on Finland's top earners to...

We construct a dynamic model of two-sided sorting in labor markets with multi-dimensional agent and firm heterogeneity. We apply it to study optimal party structure and the decision of how (de)centralized candidate recruitment should be. Parties are non-unitary actors and compete at the local...

Political parties play a crucial gatekeeping role in elections, including controlling electoral resources, candidate recruitment, and electoral list compositions. In making these strategic choices, parties aim to encourage candidates to invest in the campaign, while also trying to secure...

We study the causal effects of increasing the transparency of parliamentary speeches on polarization and other types of MP behavior. Our research design utilizes the 1989 introduction of TV broadcasting to those Finnish government's parliamentary question hours held on the first Thursday of...

We study the long-term evolution of party demographics and the associated changes in parliamentary speech patterns of various within-party groups in Finland during 1907-2018. We find significant speech differences by gender and university education status, while other MP characteristics - age,...

We present the first comprehensive evidence on the role of cognitive ability and personality traits in the selection of electoral candidates and election of politicians. Using unique data that combine population registers and election statistics from local government elections in Finland with...