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.
Keynesian economics is a theory of total spending in the economy (called aggregate demand) and its effects on output and inflation.Although the term has been used (and abused) to describe many things over the years, six principal tenets seem central to Keynesianism.The first three describe how the economy works.1.eynesian economics is a theory of total spending in the economy (called aggregate demand) and its effects on output and inflation.