The I/O and resource-based models contain many of the same s…

The I/O and resource-based models contain many of the same steps. One clear difference between the two models is the resource-based model starts by looking at the internal strengths and weaknesses of a firm, while the I/O model begins with an examination of the external environment. Another key difference is the resource-based model identifies an attractive industry much earlier in the process than does the I/O model

The difference between average and above-average returns is…

The difference between average and above-average returns is that average returns are returns that an investor expects to earn from an investment as compared to other investments with similar stock prices, while above-average returns are in excess of expectations for similarly priced stocks