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£¨3£©´øÀ´ÏàͬЧÓÃˮƽµÄÉÌÆ·µÄ²»Í¬ÊýÁ¿×éºÏµã¼¯ÖÐÔÚÏû·ÑÕߵģ¨ £©ÉÏ¡£ A.Éú²ú¿ÉÄÜÐÔÇúÏߣ» B.ÎÞ²îÒìÇúÏߣ» C.Ô¤ËãÔ¼ÊøÇúÏߣ» D.ÐèÇóÇúÏß¡£ £¨4£©ÔÚÍêÈ«¾ºÕùÊг¡ÉÏ£¬Ò»¸öÆóÒµµÄ¶ÌÆÚ¹©¸øÇúÏßÊÇÖ¸ÔÚÍ£Ö¹ÓªÒµµãÖ®Éϵģ¨ £© A.¿É±ä³É±¾ÇúÏߣ» B.±ß¼Ê³É±¾ÇúÏߣ» C.ƽ¾ù³É±¾ÇúÏߣ» D.×ܳɱ¾ÇúÏß¡£ £¨5£©Assume that Peter¡¯s income increases from $25000 to $26000. At the same time his expenditure on prawns increases from $500 to $520. Based on this information we can say: £¨ £© A. Peters price elasticity of demand for prawns is elastic

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B. Peters price elasticity of demand for prawns is inelastic C. Peters price elasticity of demand for prawns is unit elastic D. Peter¡¯s income elasticity of demand is unit elastic 2£®¶àÏîÑ¡Ôñ£¨¶àÑ¡¡¢ÉÙÑ¡¾ù²»µÃ·Ö£©

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£¨5£©The deadweight loss from a tax imposed on buyers will be equal to zero when£¨ £© A. Demand has own price elasticity equal to zero and supply is upward sloping B. Demand has own price elasticity equal to infinity and supply is upward sloping C. Supply has own price elasticity equal to zero and demand is downward sloping D. Supply has own price elasticity equal to infinity and demand is downward sloping Èý¡¢¼ò´ðÓë¼òʾÌ⣨ÿÌâ6·Ö£¬¹²30·Ö£©

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4£®Í¼Ê¾²¢ËµÃ÷ÍêÈ«¾ºÕùÊг¡ÉÏÆóÒµ¶ÌÆÚ¾ö²ßÖеÄÊÕÖ§ÏàµÖµãÓëÍ£Ö¹ÓªÒµµã¡£ 5£®Devise a simple prisoners' dilemma game to demonstrate the Nash Equilibrium. ËÄ¡¢¼ÆËãÌ⣨ÿÌâ5·Ö£¬¹²15·Ö£©

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3£®Assume that the domestic demand for cars is given by Qd=14000-2P and the domestic supply of cars is given by Qs=P-1000. In the absence of international trade, What is the equilibrium quantity of output in the

market and what is total surplus when market is in equilibrium?

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