What would be the effects of each of the following on the supply of coffee worldwide? In each case, identify the responsible determinant of supply.
a. Freezing temperatures wipe out half of Brazil's coffee crop.
b. Wages of coffee workers in Latin America rise as unionization efforts succeed.
c. Indonesia offers big subsidies to its coffee producers.
d. Genetic engineering produces a super coffee bean that grows faster and needs less care.
e. Coffee suppliers expect prices to be higher in the future.