The Bothnian Arc is a cross-border area on the border of Finland and Sweden that covers the most populated areas along the upper Bothnian Bay, spanning 800 kilometres. It has a population of around 710 000, across 55 000 km² with an economic output of USD 31 billion. The Bothnian Arc...

We examine the evolution of infrastructure, and the impact of infrastructure investment, in middleincome countries (MICs). We document how different types of infrastructure stocks, as well as infrastructure investment, vary with the level of development and growth performance. We then use the...

Estonia and Finland have centuries of collaboration, mainly between the capital areas of Tallinn and Helsinki that currently account for 2 million inhabitants and USD 76 billion in economic output. The entry of Estonia into the European Union and, since the mid-2000s, a two-hour ferry trip, have...

Hedmark County (Norway) and Dalarna County (Sweden) are both rural, with the border being remote from regional centres. The total population of less than half a million inhabitants spans across almost 58 800 km², with an economic output of USD 22 billion. Efforts to support collaboration at the...

The Top Technology Region/Eindhoven-Leuven-Aachen triangle (TTR-ELAt) is an initiative to support cross-border collaboration in a densely populated network of small and medium-sized cities located at the heart of western Europe with an annual economic output of USD 244 billion. The collaboration...

The Oresund is the most well-known example of European cross-border collaboration, building on the metropolitan area around Copenhagen and, across the sound, southern Sweden with the cities of Malmö, Lund and Helsingborg. Cross-border integration intensified following the opening of a...

The island of Ireland, which includes both Ireland and Northern Ireland (United Kingdom), is home to 6.4 million people and has a combined economic output of USD 205 billion. Several cross-border institutions were created in response to the 1998 Belfast/Good Friday Agreement to recreate...