Governments have never existed to solve problems domestic or international. Governments and their institutions exist merely to further and secure the interests of favored groups, but We the People are never the favored group.
Paul Krugman recently wrote that
None of this should be happening. As in 1931, Western nations have the resources they need to avoid catastrophe, and indeed to restore prosperity — and we have the added advantage of knowing much more than our great-grandparents did about how depressions happen and how to end them. But knowledge and resources do no good if those who possess them refuse to use them.