Maybe this is what is meant by the trickle-down effect.
World Vision fights poverty and sub-standard housing
By RAYMOND GUTT
San Pedro Sula has been experiencing an industrial boom thanks to the thriving maquila industry. This industrial growth has created thousands of new jobs and has been the reason for a large influx of rural people to this industrial center.
But while this boom may be good for the economy, it has also led to a shortage of low cost homes. Utilities such as water, electricity and telephone have also been over burdened by the rapid growth of the metropolitan area. There are many marginal communities without running water or electricity.
Typical construction of the houses in these marginal communities is cardboard boxes and large sheets of plastic held in place by mud. The dirt floors become muddy every time it rains. Standing water in walkways is a breeding ground for mosquitoes. Cooking is done outside on crude wood burning stoves.