The article discusses how firms can choose the best IT portfolio based on their risk tolerance levels. The researchers created a new model called the IT Portfolio Efficient Frontier, which helps decision-makers pick the right IT investments. They found that different types of IT portfolios have different relationships between risk and return. Evenly distributed portfolios and unevenly distributed portfolios show a positive linear relationship between risk and return. On the other hand, dominant IT portfolios have a concave curve relationship. This means that if a firm's IT investments are similar to a dominant portfolio, it's better to be more conservative after a certain point.