Required information [The following information applies to the questions displayed below.] For the following independent cases, determine whether economic income is present and, if so, whether it must be included in gross income (i.e., is it realized and recognized for tax purposes?). (Leave no answers blank. Enter zero if applicable.) a. Asia owns stock that is listed on the New York Stock Exchange, and this year the stock increased in value by $15,500. Economic Income Amount included in Gross Income Amount