The construction sector plays a key role in providing structures for economies. This paper surveys the literature on key issues pertaining to the construction sector. It starts by summarizing our knowledge about differences in unit costs across time and space. It then discusses key bottlenecks...

The purpose of this work is to identify the institutional network of the National Road System (SNV) to illustrate and discuss its complexity. A qualitative-quantitative analysis of legislation permitted to circumscribe objectives and limits and to identify key members and interactions. This...