What is the fine-grained topic of the following text: The bank did not respond to Malpass’s criticism in 2017 but it touts the precipitous drop in extreme global poverty — which it says fell to 10 per cent from 36 per cent between 1990 and 2015 — as evidence of its success. Only return the topic.
The World Bank's response to criticism and its evidence of success in reducing global poverty.