Tswana tribes present, there were also many non-Tswana groups whose first language was not Setswana. This underlying heterogeneity has been modulated both by the policies of the postindependence government and by the relatively inclusive institutions of the Tswana tribes in the same way as heterogeneity in Britain, for example, between the English and the Welsh, has been modulated by the British state. The Botswanan state did the same. Since independence, the census in Botswana has never asked about ethnic heterogeneity, because in Botswana everyone is Tswana.
Botswana achieved remarkable growth rates after independence because Seretse Khama, Quett Masire, and the Botswana Democratic Party led Botswana onto a path of inclusive economic and political institutions. When the diamonds came on stream in the 1970s, they did not lead to civil war, but provided a strong fiscal base for the government, which would use the revenues to invest in public services. There was much less incentive to challenge or overthrow the government and control the state. Inclusive political institutions bred political stability and supported inclusive economic institutions. In a pattern familiar from the virtuous circle described in chapter 11, inclusive economic institutions increased the viability and durability of inclusive political institutions.
Botswana broke the mold because it was able to seize a critical juncture, postcolonial independence, and set up inclusive institutions. The Botswana Democratic Party and the traditional elites, including Khama himself, did not try to form a dictatorial regime or set up extractive institutions that might have enriched them at the expense of society. This was once again an outcome of the interplay between a critical juncture and existing institutions. As we have seen, differently from almost anywhere else in sub-Saharan Africa, Botswana already had tribal institutions that had achieved some amount of centralized authority and contained important pluralistic features. Moreover, the country had economic elites who themselves had much to gain from secure property rights.
No less important, the contingent path of history worked in Botswana’ s favor. It was particularly lucky because Seretse Khama and Quett Masire were not Siaka Stevens