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.
When supply decreases, the supply curve shifts to the left. When supply increases, the supply curve shifts to the right. Changes in supply can result from events like the following: 1  Change in production costs. 2  Improved technology that makes production more efficient. 3  Industry growth and shrinkage.