This paper examines if taking into account changes in the number of producers, or equivalently changes in the product variety space over the business cycle, helps to understand and replicate international business cycle facts. To this end, we develop a two-country model in which the economy is...

O sector público desempenha importantes tarefas de afectação e de redistribuição de recursos na sociedade. Mas, a promoção da eficiência, da equidade e do estímulo ao crescimento e à estabilidade, são as suas grandes linhas gerais de orientação, as quais orientam-se para a...

Neste trabalho o método de opções reais foi utilizado, em confronto com o do valor presente líquido, para avaliar se uma parte do Parque dos Manguezais, em Recife-PE, maior área de manguezal urbano do mundo, deve ou não ser utilizada para construção de uma rodovia, se sua totalidade deve...

The article analyzes the spatial pattern of public spending in several federative and regional scales. Theoretical considerations show gaps and common concepts to the relationship between federalism and territory. The empirical analysis shows an asymmetric pattern, with small and large...

Problems of collective action are at the roots of several public policies and, as shown in this text, there are many mechanisms and tools to be used in order to solve those problems. Although three groups of mechanisms and tools have not been stressed in the usual debates of public policy, they...

The problem of coordination concerns how to make actions or choices of social agents (individuals or organizations) match in the right way. Some problems of coordination are also problems of separation. In many cases of lack of coordination, communication is faulty or not very reliable....

Many public policies seek to promote, maintain, modify or improve collective actions. The development of a country requires actions that are complex and wide in scope. This and following texts sort out: i) two general classes of problem-situations that lack collective action; and ii) kinds of...

The present work discusses the main economical and institutional problems that involve Brazilian ports. Firstly, we characterize the Brazilian ports` segment, presenting the main concepts and the current model. Next, we present a short analysis of the main laws which regulate the sector. Then,...