While lichen planus very rarely leads to oral cancer, irritation of lichen planus by tobacco and alcohol, poorly fitting dentures, and poor oral hygiene can turn lichen planus into the erosive type.
In economics, a deadweight loss (also known as excess burden or allocative inefficiency) is a loss of economic efficiency that can occur when equilibrium for a good or service is not achieved or is not achievable.he deadweight loss is the area of the triangle formed by the grey tax income box (to the right of it), the original supply curve, and the demand curve.
A recent General Accounting Office report on the progress of the welfare reform law passed two years ago found a sharp decline nationwide in the welfare rolls. The number of people on welfare has fallen 37 percent to 8.9 million in March 1998 from 14.1 million in January '93. The report also found significant increases in the numbers of welfare recipients who obtained jobs. Getting off welfare is one thing. Getting out of poverty requires training and education.