The kind of lighting you choose will be a huge factor in the cost of lighting installation. Simple lighting can be pretty affordable, but more expensive fixtures will bring up the cost of installation-as will antique chandeliers or fixtures.
a change in supply is the shift in supply curve due to change in price of other commodities and other factors like taste,weather,income e.t.c while a change in quantity supply â¦ is the change in price of the commodity itself that affect the quantity supply,here the supply curve remain constant but there will be a movement along the supply curve.
An Increase in Supply. An increase in supply is represented by the diagram above. An increase in supply can either be thought of as a shift to the right of the demand curve or a downward shift of the supply curve. The shift to the right interpretation shows that, when supply increases, producers produce and sell a larger quantity at each price.