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.
Definition of Deadweight Loss. Deadweight loss is the loss in economic surplus. Something causes a deadweight loss if its cost to society is greater than its benefit.For example, a tax can create a deadweight loss for society, if the total benefits collected by the government are less than the total cost to society.efinition of Deadweight Loss. Deadweight loss is the loss in economic surplus. Something causes a deadweight loss if its cost to society is greater than its benefit.