All other things being equal, explain the effect of each of the following situations on demand and/or supply of wheat. Explain also what will be the effect on equilibrium price and quantity. Provide clearly labelled diagrams.

a. wheat is now considered by doctors to be the least healthy vegetable

b. there is an increase in the amount of land used to grow wheat

c. producers expect the price of wheat to rise in the future

d. the supply of corn, a substitute for wheat, increases

e. wheat is a normal good and incomes increase