1. 
   Quasi-rent
   Short-term economic rent arising from a temporary inelasticity of supply
   Found op http://www.bized.co.uk/reference/glossary/index.htm?glosid=822
   
   
2. 
   quasi-rent
   (from the article `rent`) ...like land, it is a `free gift of nature.` A particularly effective machine also, though its supply can be increased in time by productive effort, ...
   Found op http://www.britannica.com/eb/a-z/q/5
   
   
3. 
   Quasi-rent
   Like economic rent, but usually larger, because it is the excess of return over short run opportunity cost, which does not include the fixed cost of replacing or duplicating fixed assets such as a piece of capital or an invention. Thus, inframarginal rent.
   Found op http://www-personal.umich.edu/~alandear/glossary/q.html
   
   
4. 
   Quasi-rent
   Quasi-rent is an analytical term in economics, for the income earned, in excess of post-investment opportunity cost, by a sunk cost investment. Alfred Marshall (1842-1924) was the first to observe quasi-rents. In general, an economic rent is the difference between the income from a factor of produc...
   Found op http://en.wikipedia.org/wiki/Quasi-rent
   
   

Tip: double click on a word to show its meaning.