Models with random effects/latent variables are widely used for capturing unobserved heterogeneity in multilevel/hierarchical data and account for associations in multivariate data. The estimation of those models becomes cumbersome as the number of latent variables increases due to...

We exploit a unique panel of 75 metro areas (‘cities’) across the globe and employ a cityfixed effects model to identify the determinants of within-city changes in air pollution concentration between 2005 and 2011. Increasing car and population densities significantly reduce air pollution...

We present a modified open monocentric city model that assumes that land is available for conversion into new housing throughout the city. The model predicts that positive local income shocks (i) increase the city’s share of multi-family housing in new construction and (ii) lead to the...

This article analyzes the political origins of differences in adherence to the fiscal framework of the European Union (EU). It shows how incentives to use fiscal policy for electoral purposes and limited budget transparency at the national level, combined with the need to respond to fiscal rules...

Classical dimensional analysis in its original form starts by expressing the units for derived quantities, such as force, in terms of power products of basic units etc. This suggests the use of toric ideal theory from algebraic geometry. Within this the Graver basis provides a unique primitive...

This new SSATP discussion paper reviews the experience of an apparently successful corridor to help understand optimal mix and trade-offs in reviving historical trade route. The Maputo Corridor, which had fallen in disuse during the troubled period in Mozambique, is widely regarded as one the...

We live in an urban age. Over half the world’s population now lives in urban areas, while the urban population is expected to reach 60% by 2030. At the same time, the importance of cities for national economic growth and climate change continues to increase. Three groups of cities will be...

In this paper we study how the use of collateral is evolving under the influence of regulatory reform and changing market structure. We start with a critical review of the recent empirical literature on the supply and demand of collateral which has focussed on the issue of ‘collateral...

This paper focusses on one central aspect of urban development: transport and urban form and how the two shape the provision of access to people, goods and services, and information in cities. The more efficient this access, the greater the economic benefits through economies of scale,...

The optimal capital growth strategy or Kelly strategy, has many desirable properties such as maximizing the asympotic long run growth of capital. However, it has considerable short run risk since the utility is logarithmic, with essentially zero Arrow-Pratt risk aversion. Most investors favor a...