$20.$ 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 resourcebased model identifies an attractive industry much earlier in the process than does the I$/$O model.

a$.$ True

b$.$ False