Carol and Dave each purchase 100 shares of stock of Burgundy, Inc., a publicly owned corporation, in July for $10,000 each. Carol sells her stock on December 31 for $8,000. Because Burgundy's stock is listed on a national exchange, Dave is able to ascertain that his shares are worth $8,000 on December 31. Does the tax law treat the decline in value of the stock differently for Carol and Dave? Explain.