Science means simply the aggregate of all the recipes that are always successful. All the rest is literature.
A rise in the level of saving can reduce aggregate activity temporarily but only a sustained high level of saving makes it possible to have the sustained high level of business investment that contributes to the long-run growth of output.
China's idea of fair trade is government subsidies of its textile and apparel exports to the United States currency manipulation and forgiveness of loans by its government banks.