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.
The welfare system is an integrated part of Germany's social market economy.. Particularly significant is the fact that in Germany, more than in most countries, welfare policies have been mechanisms of economic governance. That is welfare policies are designed to enhance employment effects by withdrawing surplus labor from the economy.