1.	Los  Angeles is committed to raising $1 billion for a new stadium.  It is  considering a $1 surtax on all cab rides because most cab rides are by  non-residents.  Use supply and demand to evaluate the wisdom of such a  tax.
 
 2.	Tokyo has won the right to host the 2020 Summer Olympics, but it  might have made itself worse off by doing so.  Use the appropriate model  to explain why this is so.
 
 3.	A recent economic study found that the difference in prize money  between the winners of downhill ski races and second-place finishers is  much less than the difference in professional golf tournaments.  Use an  appropriate model to explain why this is the case.