The informal sector is typically characterized as being very heterogeneous and possibly composed of two clearly distinct segments, sometimes called the lower and upper tier. However, empirical evidence shows that even among lower tier entrepreneur's profitability can be quite high. The authors...

It has recently been argued that the informal sector in developing countries shows a dual structure, with part of the informal sector being competitive to the formal sector and part of the informal sector being the result of market segmentation. We formulate an econometric model to test this...

It has been recently argued that the informal sector of the labor market in a developing economy shows a dual structure with one part of it being competitive to the formal sector and another part being the result of market segmentation. To test this hypothesis we formulate an econometric model...

It has been recently argued that the informal sector of the labor market in a developing economy shows a dual structure with one part of it being competitive to the formal sector and another part being the result of market segmentation. To test this hypothesis we formulate an econometric model...

Ongoing empirical research on the drivers of project-aid effectiveness relies on World Bank evaluation ratings across heterogeneous aid sectors. This leads to two problems. First, it is difficult to identify which dimension of project performance World Bank evaluation ratings are measuring...