Ask the World Bank/IMF for advice. Then do the exact opposite. More seriously, historically it has required a strong industrial policy with selective and targe

Ask the World Bank/IMF for advice. Then do the exact opposite. More seriously, historically it has required a strong industrial policy with selective and targeted trade barriers / industry support. With poor governance this is incredibly difficult to pull off without it devolving into kleptocracy. Unfortunately, the n for countries that have gone from poverty to OECD level wealth is very small so history might not be a useful indicator. Frankly, I think Malawi is probably just screwed. Limited resources, landlocked, difficult neighbors, extreme ethnic diversity, etc