First Botswana possessed relatively inclusive pre-colonial institutions, placing constraints on political elites. Second the effect of British colonialism on Botswana was minimal, and did not destroy these institutions. Third, following independence, maintaining and strengthening institutions of private property were in the economic interests of the elite. Fourth, Botswana is very rich in diamonds, which created enough rents that no groups wanted to challenge the status quo at the expenses of "rocking the boat." Finally we emphasize that this situation was reinforced by a number of critical decisions made by the post-independence leaders, particularly Presidents Khama, and Masire.
The abstract seems to contradict your previous points.
At this point, who isn't?
Most developing countries, still. Botswana is very much an outlier.


