Analysis of information sources in references of the Wikipedia article "Race to the bottom" in English language version.
But the race to the bottom operates more subtly than most people suppose. The regressions suggest that while countries do compete with each other by instituting laws that are unfriendly to workers, such competition is not that pronounced. The real problem is that countries compete by enforcing labour laws less vigorously than they might—leading to increases in violations of labour rights prescribed in local laws. Competition between countries to attract investment is less in rules than in their practical application.
Today the majority of ship owners are based in wealthy maritime nations like the United States, Great Britain, Norway, Greece, and Japan, but their ships are registered and flagged in foreign countries with "open registries" — that essentially have no minimum wages, labor standards, corporate taxes, or environmental regulations and only a flimsy authority over the ships flying their flags. All these countries require is that ship lines pay a handsome registration fee. Carnival registered its fleet in Panama. Royal Caribbean registered its ships in Liberia. (During its two-decades-long civil war, Liberia earned at least $20 million every year by acting as the off-shore registry for foreign ships.)