​With which choice are you more likely to avoid Bid-rigging cartels?

A) ​Holding Vickery auctions
B) Holding sealed-bid auctions
C) Holding English auctions
D) ​Both A&B

If a $1,000, 8% coupon rate bond currently sells for $627.76 and has 15 years remaining to its maturity, what is the bond's and the market's yield?

A) 8.00%
B) 14.00%
C) 7.00%
D) 16.00%