Public transport provision requires substantial organisational efforts, careful planning,
financial contributions from the public, and coordination between millions of passengers and …

This chapter surveys work on dynamic heterogeneous agent models (HAMs) in economics
and finance. Emphasis is given to simple models that, at least to some extent, are tractable …

Inattention is a central, unifying theme for much of behavioral economics. It permeates such
disparate fields as microeconomics, macroeconomics, finance, public economics, and …

We consider online allocation problems with concave revenue functions and resource
constraints, which are central problems in revenue management and online advertising. In …

We study liquidity conditions in the corporate bond market during the COVID-19 pandemic.
We document that the cost of trading immediately via risky-principal trades dramatically …

This chapter focuses on the estimation and interpretation of gravity equations for bilateral
trade. This necessarily involves a careful consideration of the theoretical underpinnings …

We combine a theoretical discrete-choice model of vehicle purchases, an econometric
analysis of electricity emissions, and the AP2 air pollution model to estimate the geographic …

This article examines the historical impact of railroads on the US economy, with a focus on
quantifying the aggregate impact on the agricultural sector in 1890. Expansion of the …

We develop and structurally estimate a model of heterogeneous multiproduct firms that can
be used to decompose the firm-size distribution into the contributions of …

In recent years, online retailers (also called e-tailers) have started allowing manufacturers
direct access to their customers while charging a fee for providing this access, a format …