Issue Bio-Tech Fund, which invests in small, newly issued bio-tech stocks and whose investors have earned an average of 18% per year in the fund's relatively short history. Allison: years Leslie: years the nearest cent. $ c. Is it rational or irrational for Allison to invest in the bond fund rather than in stocks? Issue Bio-Tech Fund, which invests in small, newly issued bio-tech stocks and whose investors have earned an average of 18% per year in the fund's relatively short history. Allison: years Leslie: years the nearest cent. $ c. Is it rational or irrational for Allison to invest in the bond fund rather than in stocks