Need help with these two questions

3. How do you think Magellan's discoveries affected the market demand curve for spices? What do you think is the main reason for any change in the market demand curve for cinnamon during the past 500 years? 4. Organizations trying to help coffee formers have established a "fair trade" wholesale price for coffee beans of $1 .40 per pound. What do you think would happen to the quantity of coffee beans supplied and demanded if the government mandated a minimum wholesale price of $1.40 for all coffee bean purchases