Rainfall is a truly exogeneous variable and hence popular as an instrument for many outcomes. But by its very nature, rainfall in nearby areas tends to be correlated. I show theoretically that if there are also spatial trends in outcomes of interest, this may create spurious correlation. In...

A common approach to defining equivalence scales is to consider a household modelled as if it maximizes a single utility function. This may be founded on an assumption of the household maximizing a welfare function of individual utilities. For a positive analysis of the household, this may be...

The time series nature of repeated surveys is seldom taken into account. I present a statistical model of repeated surveys and construct a computationally feasible estimator based on the Kalman filter. The novelty is that the estimator efficiently uses the whole underlying data set. However, for...

Using matched administrative election data from Norway, we document gender-specific turnout rates by a range of socio-economic outcomes as well as family relationships and immigrant status. High social rank is consistently associated with higher turnout: we find significant turnout gradients for...

Our lab experiment tests for strategic ignorance about the environmental consequences of one's actions. In a binary dictator situation based on the design by Dana, Weber, and Kuang (2007), we test whether the option to remain ignorant about the receiver's payoffs reduces generosity. Our receiver...

The Nordic countries have the lowest maternal and child mortality rates in the world. This has not always been the case. In 1887 the mortality rates in Norway were similar to those of developing countries today. During the next 34 years, Norwegian maternal mortality was halved and infant...

We report results from a dictator game experiment with nurse students and real estate broker students as dictators, and Amnesty International as the recipient. Although brokers contributed substantial amounts, nurses contributed significantly more, on average 76 percent of their endowment. In a...

No voters cast their votes based on perfect information, but better educated and richer voters are on average better informed than others. We develop a model where the voting mistakes resulting from low political knowledge reduce the weight of poor voters, and cause parties to choose political...

The time series nature of repeated surveys is seldom taken into account. The few studies that take this into account usually smooth the period-wise estimates without using the cross sectional information. This leads to inefficient estimation. I present a statistical model of repeated surveys and...

Political economy models predict that the rich oppose redistribution, and hence vote for conservative parties. Although this seems to fit the data well, I show that this is not true when we control for unobservable characteristics. Using Norwegian survey data, I study to what extent voting is...