$5$ Points

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 $\frac{1}{0}$ model.