From the article:
The truth is that Kim isn’t wrong. The World Bank has simply not been effective enough at what is supposed to be its core task: mobilizing funds for infrastructure investment in poorer countries. The financial gap that emerging markets have to bridge is huge; between $1 trillion and 1.5 trillion annually is needed for investment in infrastructure. And how much can multilateral development banks raise in total? All of them put together — not just the World Bank but also regional MDBs such as the Asian Development Bank — can spend about $116 billion a year, according to the Center for Global Development’s Nancy Lee. Worse, only about $45 billion of that goes into infrastructure investment.
Now, one response to this problem could be to capitalize these banks better. But, as we’re likely to discover in the battle between the Trump administration and the rest of the world that is now inevitable after Kim’s resignation, the U.S. isn’t terribly interested in multilateral institutions such as the World Bank. (This is a striking contrast to China, which is looking to scale up the institutions it dominates, such as the Asian Infrastructure and Investment Bank.) So, more money for the World Bank is out — and even if it were committed, it wouldn’t come close to addressing the “infrastructure deficit” that Kim talks about.