Due to these concerns, lorazepam use is generally only recommended for up to two to four weeks. Lorazepam was initially patented in 1963 and went on sale in the United States in 1977. It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system.
David Ricardo, the British economist who invented the theory of comparative advantage in 1817, actually knew about this problem perfectly well, and wrote about it in his book on the subject. So there's no excuse for modern economists to ignore it. Dubious Assumption #6: Short-term efficiency causes long-term growth.
Absolute advantage and comparative advantage are two terms that are widely used in international trade. Both terms deal with production, goods and services. Absolute advantage is a condition in which a country can produce particular goods at a lower cost in comparison to another country.On the other hand, comparative advantage is a condition in which a country produces particular goods at a lower opportunity cost in comparison to other countries.hile cost is a factor involved in absolute advantage, opportunity cost is the factor that is involved in comparative advantage. Unlike absolute advantage, comparative advantage is always reciprocal and mutual. It was Adam Smith who first described absolute advantage in the context of International trade.