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.
â¢ Comparative advantage is when a company can produce goods at a lower opportunity cost than its competitors. Opportunity cost is the cost that must be endured when selecting one option over the other. â¢ Competitive advantage represents any benefits and advantages that a company may have over its competitors.