This essay shows that the growth of the economy of New Granada during the Eighteenth Century made an important impact on its political center, Santafé de Bogota, at least until 1808. Such prosperity was the result of a process of specialization and division of labor between different regions of the new kingdom, derived from the dynamics of gold mining that gave a strong impulse to Santafé's economy as a trade center for the handicraft production of Eastern Colombia and the fertile savanna surrounding it, which was a net food exporter. The Mint established in Santafé, which was a de facto monopoly, attracted merchants and miners who established there a center for the exchange of gold dust for coin.

The analysis of the evolution of the location of economic activity in Portugal between 1890 and 1980 depicts a strong concentration of productive activity in the coastal regions. We estimate data for regional GDP per capita, which show that the evolution of regional inequality followed an inverted U-curve, in line with that observed in other regions of Europe, but with a rather late peak, in 1970. The reasons for this behaviour may be found in the limits to industrialisation in the interior regions and the benefits generated by the agglomeration economies in the more developed coastal regions.

Because the literature of European economic history has paid little attention to traditional electricity systems, the interest in studying Fensa lies in analysing the different types of companies, which helped to shape the development of the Spanish electricity sector prior to its present oligopolistic structure. This case provides insight into two issues. First, we learn about the behaviour of the second-generation companies (those that based their production on a controlled hydropower regime), which, despite their limited size, made their commercial specialisation (supplying the dynamic industrial market of Guipúzcoa) their main comparative advantage. Second, we analyse the behaviour of those companies which at this time, as distribution companies and/or subsidiaries of the large Spanish companies (Iberduero), were an instrument of the policy of integrating regional markets.

This article analyses the origin of the persistently high level of electricity prices that hampered the expansion of electricity consumption during the interwar period in Porto. Initially, the rent-seeking behaviour of both the supply firm and the City Hall at the local level affected the expansion of the local electricity market. During the 1930s, this collusion at municipal level coincided with unpredictable energy policies at state level. This circumstance impeded the indispensable increase of scale and the building of a regional market of electricity in north Portugal. The literature on regulation and institutional analysis has proved very useful. Finally, though equally important, primary sources from company archives and institutional bodies were also employed.