4. The current long-term economic outlook for U.S. national saving and investment is subject to wide ranging uncertainty about economic changes and the responses to those changes.
Future long-term economic outlook for U.S. national saving and investment is subject to similar uncertainty.
mnli hypothesis: Future long-term economic outlook for U.S. national saving and investment is subject to similar uncertainty. premise: 4. The current long-term economic outlook for U.S. national saving and investment is subject to wide ranging uncertainty about economic changes and the responses to those changes.