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Monthly Archives: 六月 2008
人造机械手臂
英国科技公司「Touch Bionics」,制造出商用化的人造机器手臂(i-LIMB),五根手指可以独立运作,与正常手指一样能操作极为细腻的动作,例如用钥匙开门、拿名片等。 Continue reading
Elasticity and Its Application
Elasticity measures the responsiveness of quantity demanded or quantity supplied to one of its determinants. Continue reading
The Market Forces of Supply and Demand
Supply and demand are forces that make market economies work. They determines the quantity of each good produced and the price at which it is sold. Continue reading
Interdependence and the Gains from Trade
Interdependence and trade allow us to be specialized as well as to enjoy greater variety and quantity of goods and services.To measure the ability of producing goods and services, there are two different ways: absolute advantage and comparative advantage. Continue reading
Thinking Like An Economist
Summary of Chapter 2 – Thinking like an economist
Economists devise theories, collect data, and then analyze these data in an attempt to verify or refute the theories. The field of economics is traditionally divided into two broad subfields:macroeconomics and microeconomics.Economists, with different scientific judgements and values, develope different positive statements and normative statements. Continue reading