If the demand for ethanol increases the price will also increase.This is based on price elasticity of demand.
Increase in demand::It imply rightwaed shift of demand curve.Therefore change in factors other than price.1. increase in taste increase in demand curve2. increase in popoulation increase in demand curve3. increase in income increase demand if normal good4. fall in income increase demand if an inferior good5. increase in price of substitute (pepsi) increase demand for good(coke)6. fall in price of complement (beer) increase demand for good7. if we expect the price of the product to increase in the future , our demand today will increase.Increse in quantity demanded::Movement up the demand curve.Therefore change in price-------- increase in price cause a decrese in quantity demanded,decrese in price cause an increase in quantity demanded .
Supply increases.
There is often a change in supply and demand of oranges.
A change in the supply and demand of swimsuits often occurs.
When a price increase has little or no effect on the demand for a product, it is inelastic.
When both supply and demand shift to the right, the equilibrium price will increase if the increase in demand is greater than the increase in supply. Conversely, the equilibrium price will decrease if the increase in supply is greater than the increase in demand.
If the demand for a commodity increases, but the supply does not increase equally, the price will increase. If the supply of a commodity increases, but the demand for that commodity does not increase equally, the price will decrease. If the demand for a commodity decreases, but the supply does not decrease equally, the price will decrease. If the supply of a commodity decreases, but the demand does not decrease equally, the price will increase.
In the short run, there would be oversupply.
If the demand for a commodity increases, but the supply does not increase equally, the price will decreaase. If the supply of a commodity increases, but the demand for that commodity does not increase equally, the price will increase. If the demand for a commodity decreases, but the supply does not decrease equally, the price will increase. If the supply of a commodity decreases, but the demand does not decrease equally, the price will decrease
The price for the good increases
Complement goods are those goods which uses collectively or side by side e.g petrol and cars. If the demand of one good changes then demand of other good move in the same direction. If the price of product complementary falls then the demand of complementary product increases according to the demand law which in turn increase the demand of product. Suppose the prices of petrol falls which will increase the demand of petrol which in turn in increase the demand of cars.
If there is an increase in supply, the supply curve will be shifted to the right. This leads to a decrease in the equilibrium price and an increase in equilibrium quantity. This is easy to see if you draw it out.