请教关于国际贸易基本理论的问题

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我知道下面的帖子不应该发在制度经济学版面，可是国际经济学版面每天登陆的人太少，制度经济学版面特红火，所以发在这儿。请斑竹和大家原谅。

关于国际贸易基本理论的问题

假 设:

1. 世界上有两个国家,每个国家只有一个人,而且只有两种产品:小麦和大米.

2. 这两个人每天的效用函数相同,都为:U=XY,即每天必须消费两种产品.而且每天只在傍晚消费一次.

3. 这两个人每个人单独一天(8小时)内,若只生产两种产品的其中一种产品,则能生产出4单位的大米,或单独一天(8小时)能生产出4单位的小麦,也就是说这两个人每人单独一天内同时生产小麦和大米,那么能生产出小麦和大米的数量都为2单位和1单位(或2单位和2单位).

4. 小麦和大米的生产只需要劳动,不需要其他资源.

5. 不存在交易费用,即交易费用为0.

问,在上面的假设情况下,

(1)若每个人一天同时生产小麦和大米,那么能生产出小麦和大米的数量为2单位和1单位,国际贸易存在吗?

(2)若每个人一天同时生产小麦和大米,那么能生产出小麦和大米的数量为2单位和2单位,国际贸易存在吗?

(3)请说出现在已经有的绝对优势理论\比较优势理论和其后发展起来的各种各样的贸易理论中,哪一种贸易理论能

够解释上面的现象

2006-8-10 10:26:00

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23. <P>第一题里，那个1单位是怎么种出来的？</P>
24. <P>第二题的话，应该不会发生贸易吧</P></DIV>
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62. <P>-- 作者：vanillaboy <BR>-- <BR></P>
63. <P>第一题里，那个1单位是怎么种出来的？</P>
64. <P><STRONG>回答:</STRONG></P>
65. <P><STRONG>如果一个人一天单独能够生产4单位小麦,若同时生产小麦和大米,若前半天生产小麦,其产量为2,后半天生产大米,由于劳动从小麦转换到大米上,所以存在损失,那么生产出来的大米就为1(不一定为1,大于0小于2〕.</STRONG></P></DIV></DIV></DIV>
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101. <DIV>
102. <P>如你所言，损失是在不同作物种植的转换过程中造成的，那么如果双方的损失量是不相同的，事实上也就是说，双方的生产技术有差异（如果要把这种损失归结于生产技术原因的话），会发生贸易。</P>
103. <P>这种损失也可以算作一种交易费用，即为了交易此种作物而不得不改种另一种作物时所花掉的成本。这样就和交易费用为0的假设是矛盾的了。所以在第一题里假设交易费用为0是不严格的。</P></DIV>
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140. <DIV>像第一楼所说的情况究竟用哪一种贸易理论解释好呢?</DIV></DIV></DIV>
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147. <DIV class=menuitems><a href="https://bbs.pinggu.org/TopicOther.asp?t=6&amp;BoardID=9&amp;id=103858&amp;ReplyID=15341" target="_blank" ><FONT color=#000000>举报帖子</FONT></A> <BR><a><FONT color=#000000>使用道具</FONT></A> </DIV></DIV><a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15341&amp;ID=103858&amp;star=1&amp;reply=true" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply.gif" border=0></A> <a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15341&amp;ID=103858&amp;star=1" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply_a.gif" border=0></A> <a href="https://bbs.pinggu.org/post.asp?action=edit&amp;BoardID=9&amp;replyID=15341&amp;ID=103858&amp;star=1" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/edit.gif"></A> <IMG src="https://bbs.pinggu.org/skins/Default/topicmanage.gif"> <a href="https://bbs.pinggu.org/thread-103858-1-1.html&amp;page=1#top" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/p_up.gif"></A> </DIV>
148. <DIV></DIV></DIV></DIV>
149. <DIV class=postlary2>
150. <DIV class=postuserinfo>
151. <DIV >
152. <DIV ><FONT face=Verdana color=#61b713><B>lizzymyth</B></FONT></DIV>
153. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/ofFeMale.gif"> </DIV>
154. <DIV >
155. <SCRIPT language=javascript type=text/javascript>document.write (astro(''));</SCRIPT>
156. </DIV></DIV>
157. <DIV><IMG src="https://bbs.pinggu.org/UploadFace/65851_20066201912273187.jpg"></DIV>
158. <DIV><IMG src="https://bbs.pinggu.org/skins/Default/star/level5.gif"></DIV>
159. <DIV>头衔：小龙女</DIV>
160. <DIV>等级：本科生</DIV>
161. <DIV>文章：105</DIV>
162. <DIV>积分：573</DIV>
163. <DIV>魅力：104</DIV>
164. <DIV>现金：6</DIV>
165. <DIV>金币：0</DIV>
166. <DIV>门派：古墓派</DIV>
167. <DIV>注册：2005年8月15日</DIV>
168. <DIV>查看：<a href="https://bbs.pinggu.org/Query.asp?stype=1&amp;nSearch=1&amp;keyword=lizzymyth&amp;isWeb=1" target="_blank" ><FONT color=#ff0000>个人文集</FONT></A> <a href="https://bbs.pinggu.org/Query.asp?stype=6&amp;nSearch=0&amp;pSearch=0&amp;keyword=lizzymyth&amp;isWeb=1" target="_blank" ><FONT color=#ff0000>个人精华</FONT></A></DIV></DIV>
169. <DIV class=postie>
170. <DIV>
171. <DIV ><a href="https://bbs.pinggu.org/favlist.asp?action=boke&amp;BoardID=9&amp;replyID=15528&amp;ID=103858" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/bokefav.gif" align=middle border=0></A>第 <FONT color=red>6</FONT> 楼</DIV> <a href="https://bbs.pinggu.org/boke.asp?UserID=65851" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/boke.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/messanger.asp?action=new&amp;touser=lizzymyth" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/message.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/friendlist.asp?action=addF&amp;myFriend=lizzymyth" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/friend.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/dispuser.asp?id=65851" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/profile.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/query.asp?stype=1&amp;nSearch=3&amp;keyword=lizzymyth&amp;BoardID=9&amp;SearchDate=ALL" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/find.gif" align=middle border=0></A> <a href="mailto:lizzymyth@yahoo.com" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/email.gif" align=middle border=0></A> </DIV>
172. <HR>
174. <DIV >
175. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/topicface/face1.gif"></DIV><B></B></DIV>
176. <DIV>
177. <P>若生产出小麦和大米的数量都为2单位和1单位国际贸易存在</P>
178. <P>这两个人每天的效用函数相同,都为:U=XY</P>
179. <P>x,y相等</P>
180. <P><STRONG>贸易理论假设比这复杂</STRONG></P></DIV>
181. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/sigline.gif"><BR>厚德载物<BR>博学炼识<BR>自强不息<BR>http://lizzymyth.spaces.msn.com/</DIV></DIV></DIV>
182. <DIV class=postbottom2>
183. <DIV class=postuserinfo style="HEIGHT: 28px">
184. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/ip.gif"></DIV>2006-8-10 20:28:00</DIV>
185. <DIV class=postie style="PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; TEXT-INDENT: 10px; PADDING-TOP: 0px; HEIGHT: 28px">
186. <DIV >
187. <DIV>
188. <DIV class=menuitems><a href="https://bbs.pinggu.org/TopicOther.asp?t=6&amp;BoardID=9&amp;id=103858&amp;ReplyID=15528" target="_blank" ><FONT color=#000000>举报帖子</FONT></A> <BR><a><FONT color=#000000>使用道具</FONT></A> </DIV></DIV><a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15528&amp;ID=103858&amp;star=1&amp;reply=true" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply.gif" border=0></A> <a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15528&amp;ID=103858&amp;star=1" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply_a.gif" border=0></A> <IMG src="https://bbs.pinggu.org/skins/Default/topicmanage.gif"> <a href="https://bbs.pinggu.org/thread-103858-1-1.html&amp;page=1#top" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/p_up.gif"></A> </DIV>
189. <DIV></DIV></DIV></DIV>
190. <DIV class=postlary1>
191. <DIV class=postuserinfo>
192. <DIV >
193. <DIV ><FONT face=Verdana color=#61b713><B>heguoxinaaa</B></FONT></DIV>
194. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/Male.gif"> </DIV>
195. <DIV >
196. <SCRIPT language=javascript type=text/javascript>document.write (astro(''));</SCRIPT>
197. </DIV></DIV>
198. <DIV><IMG src="https://bbs.pinggu.org/Images/userface/image12.gif"></DIV>
199. <DIV><IMG src="https://bbs.pinggu.org/skins/Default/star/level5.gif"></DIV>
200. <DIV>头衔：遨游者</DIV>
201. <DIV>等级：本科生</DIV>
202. <DIV>文章：81</DIV>
203. <DIV>积分：817</DIV>
204. <DIV>魅力：8</DIV>
205. <DIV>现金：51</DIV>
206. <DIV>金币：0</DIV>
207. <DIV>门派：丐帮</DIV>
208. <DIV>注册：2006年4月20日</DIV>
209. <DIV>查看：<a href="https://bbs.pinggu.org/Query.asp?stype=1&amp;nSearch=1&amp;keyword=heguoxinaaa&amp;isWeb=1" target="_blank" ><FONT color=#ff0000>个人文集</FONT></A> <a href="https://bbs.pinggu.org/Query.asp?stype=6&amp;nSearch=0&amp;pSearch=0&amp;keyword=heguoxinaaa&amp;isWeb=1" target="_blank" ><FONT color=#ff0000>个人精华</FONT></A></DIV></DIV>
210. <DIV class=postie>
211. <DIV>
212. <DIV ><a href="https://bbs.pinggu.org/favlist.asp?action=boke&amp;BoardID=9&amp;replyID=15541&amp;ID=103858" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/bokefav.gif" align=middle border=0></A>第 <FONT color=red>7</FONT> 楼</DIV> <a href="https://bbs.pinggu.org/boke.asp?UserID=143190" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/boke.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/messanger.asp?action=new&amp;touser=heguoxinaaa" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/message.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/friendlist.asp?action=addF&amp;myFriend=heguoxinaaa" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/friend.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/dispuser.asp?id=143190" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/profile.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/query.asp?stype=1&amp;nSearch=3&amp;keyword=heguoxinaaa&amp;BoardID=9&amp;SearchDate=ALL" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/find.gif" align=middle border=0></A> <a href="mailto:libaoganggeng@sohu.com" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/email.gif" align=middle border=0></A> </DIV>
213. <HR>
215. <DIV >
216. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/topicface/face1.gif"></DIV><B></B></DIV>
217. <DIV>我的理解是绝对优势和比较优势理论都不包括第一楼所说的情况,大家认为呢?</DIV></DIV></DIV>
218. <DIV class=postbottom1>
219. <DIV class=postuserinfo style="HEIGHT: 28px">
220. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/ip.gif"></DIV>2006-8-10 20:42:00</DIV>
221. <DIV class=postie style="PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; TEXT-INDENT: 10px; PADDING-TOP: 0px; HEIGHT: 28px">
222. <DIV >
223. <DIV>
224. <DIV class=menuitems><a href="https://bbs.pinggu.org/TopicOther.asp?t=6&amp;BoardID=9&amp;id=103858&amp;ReplyID=15541" target="_blank" ><FONT color=#000000>举报帖子</FONT></A> <BR><a><FONT color=#000000>使用道具</FONT></A> </DIV></DIV><a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15541&amp;ID=103858&amp;star=1&amp;reply=true" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply.gif" border=0></A> <a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15541&amp;ID=103858&amp;star=1" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply_a.gif" border=0></A> <a href="https://bbs.pinggu.org/post.asp?action=edit&amp;BoardID=9&amp;replyID=15541&amp;ID=103858&amp;star=1" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/edit.gif"></A> <IMG src="https://bbs.pinggu.org/skins/Default/topicmanage.gif"> <a href="https://bbs.pinggu.org/thread-103858-1-1.html&amp;page=1#top" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/p_up.gif"></A> </DIV>
225. <DIV></DIV></DIV></DIV>
226. <DIV class=postlary2>
227. <DIV class=postuserinfo>
228. <DIV >
229. <DIV ><FONT face=Verdana color=#61b713><B>vanillaboy</B></FONT></DIV>
230. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/ofMale.gif"> </DIV>
231. <DIV >
232. <SCRIPT language=javascript type=text/javascript>document.write (astro('1986-01-05'));</SCRIPT>
233. <IMG src="https://bbs.pinggu.org/Skins/Default/birth/z10.gif"></DIV></DIV>
234. <DIV><IMG src="http://bbs.hzcnc.com/UploadFile/2005-5/20055618315554072.jpg"></DIV>
235. <DIV><IMG src="https://bbs.pinggu.org/skins/Default/star/level5.gif"></DIV>
236. <DIV>头衔：承总理之遗志，三民主义</DIV>
237. <DIV>等级：本科生</DIV>
238. <DIV>文章：124</DIV>
239. <DIV>积分：474</DIV>
240. <DIV>魅力：13</DIV>
241. <DIV>现金：171</DIV>
242. <DIV>金币：1</DIV>
243. <DIV>门派：无门无派</DIV>
244. <DIV>注册：2005年5月6日</DIV>
245. <DIV>查看：<a href="https://bbs.pinggu.org/Query.asp?stype=1&amp;nSearch=1&amp;keyword=vanillaboy&amp;isWeb=1" target="_blank" ><FONT color=#ff0000>个人文集</FONT></A> <a href="https://bbs.pinggu.org/Query.asp?stype=6&amp;nSearch=0&amp;pSearch=0&amp;keyword=vanillaboy&amp;isWeb=1" target="_blank" ><FONT color=#ff0000>个人精华</FONT></A></DIV></DIV>
246. <DIV class=postie>
247. <DIV>
248. <DIV ><a href="https://bbs.pinggu.org/favlist.asp?action=boke&amp;BoardID=9&amp;replyID=15573&amp;ID=103858" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/bokefav.gif" align=middle border=0></A>第 <FONT color=red>8</FONT> 楼</DIV> <a href="https://bbs.pinggu.org/boke.asp?UserID=32915" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/boke.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/messanger.asp?action=new&amp;touser=vanillaboy" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/message.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/friendlist.asp?action=addF&amp;myFriend=vanillaboy" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/friend.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/dispuser.asp?id=32915" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/profile.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/query.asp?stype=1&amp;nSearch=3&amp;keyword=vanillaboy&amp;BoardID=9&amp;SearchDate=ALL" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/find.gif" align=middle border=0></A> <a href="mailto:vanillaboy@163.com" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/email.gif" align=middle border=0></A> </DIV>
249. <HR>
251. <DIV >
252. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/topicface/face1.gif"></DIV><B></B></DIV>
253. <DIV>
254. <P>包括了呀</P></DIV>
255. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/sigline.gif"><BR>修齐治平，经世济国，天下为公，政通仁和</DIV></DIV></DIV>
256. <DIV class=postbottom2>
257. <DIV class=postuserinfo style="HEIGHT: 28px">
258. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/ip.gif"></DIV>2006-8-10 21:49:00</DIV>
259. <DIV class=postie style="PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; TEXT-INDENT: 10px; PADDING-TOP: 0px; HEIGHT: 28px">
260. <DIV >
261. <DIV>
262. <DIV class=menuitems><a href="https://bbs.pinggu.org/TopicOther.asp?t=6&amp;BoardID=9&amp;id=103858&amp;ReplyID=15573" target="_blank" ><FONT color=#000000>举报帖子</FONT></A> <BR><a><FONT color=#000000>使用道具</FONT></A> </DIV></DIV><a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15573&amp;ID=103858&amp;star=1&amp;reply=true" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply.gif" border=0></A> <a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15573&amp;ID=103858&amp;star=1" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply_a.gif" border=0></A> <IMG src="https://bbs.pinggu.org/skins/Default/topicmanage.gif"> <a href="https://bbs.pinggu.org/thread-103858-1-1.html&amp;page=1#top" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/p_up.gif"></A> </DIV>
263. <DIV></DIV></DIV></DIV>
264. <DIV class=postlary1>
265. <DIV class=postuserinfo>
266. <DIV >
267. <DIV ><FONT face=Verdana color=#61b713><B>heguoxinaaa</B></FONT></DIV>
268. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/Male.gif"> </DIV>
269. <DIV >
270. <SCRIPT language=javascript type=text/javascript>document.write (astro(''));</SCRIPT>
271. </DIV></DIV>
272. <DIV><IMG src="https://bbs.pinggu.org/Images/userface/image12.gif"></DIV>
273. <DIV><IMG src="https://bbs.pinggu.org/skins/Default/star/level5.gif"></DIV>
274. <DIV>头衔：遨游者</DIV>
275. <DIV>等级：本科生</DIV>
276. <DIV>文章：81</DIV>
277. <DIV>积分：817</DIV>
278. <DIV>魅力：8</DIV>
279. <DIV>现金：51</DIV>
280. <DIV>金币：0</DIV>
281. <DIV>门派：丐帮</DIV>
282. <DIV>注册：2006年4月20日</DIV>
283. <DIV>查看：<a href="https://bbs.pinggu.org/Query.asp?stype=1&amp;nSearch=1&amp;keyword=heguoxinaaa&amp;isWeb=1" target="_blank" ><FONT color=#ff0000>个人文集</FONT></A> <a href="https://bbs.pinggu.org/Query.asp?stype=6&amp;nSearch=0&amp;pSearch=0&amp;keyword=heguoxinaaa&amp;isWeb=1" target="_blank" ><FONT color=#ff0000>个人精华</FONT></A></DIV></DIV>
284. <DIV class=postie>
285. <DIV>
286. <DIV ><a href="https://bbs.pinggu.org/favlist.asp?action=boke&amp;BoardID=9&amp;replyID=15761&amp;ID=103858" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/bokefav.gif" align=middle border=0></A>第 <FONT color=red>9</FONT> 楼</DIV> <a href="https://bbs.pinggu.org/boke.asp?UserID=143190" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/boke.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/messanger.asp?action=new&amp;touser=heguoxinaaa" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/message.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/friendlist.asp?action=addF&amp;myFriend=heguoxinaaa" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/friend.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/dispuser.asp?id=143190" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/profile.gif" align=middle border=0></A> <a href="https://bbs.pinggu.org/query.asp?stype=1&amp;nSearch=3&amp;keyword=heguoxinaaa&amp;BoardID=9&amp;SearchDate=ALL" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/find.gif" align=middle border=0></A> <a href="mailto:libaoganggeng@sohu.com" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/email.gif" align=middle border=0></A> </DIV>
287. <HR>
289. <DIV >
290. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/topicface/face1.gif"></DIV><B></B></DIV>
291. <DIV>
292. <DIV class=quote><B>以下是引用<I>vanillaboy</I>在2006-8-10 21:49:00的发言：</B><BR>
293. <P>包括了呀</P></DIV>
294. <P>如何包括的，请给予回答。<BR><BR>
295. <DIV align=right><FONT color=#000066>[此贴子已经被作者于2006-8-11 9:53:57编辑过]</FONT></DIV></DIV></DIV></DIV>
296. <DIV class=postbottom1>
297. <DIV class=postuserinfo style="HEIGHT: 28px">
298. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/ip.gif"></DIV>2006-8-11 9:39:00</DIV>
299. <DIV class=postie style="PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; TEXT-INDENT: 10px; PADDING-TOP: 0px; HEIGHT: 28px">
300. <DIV >
301. <DIV>
302. <DIV class=menuitems><a href="https://bbs.pinggu.org/TopicOther.asp?t=6&amp;BoardID=9&amp;id=103858&amp;ReplyID=15761" target="_blank" ><FONT color=#000000>举报帖子</FONT></A> <BR><a><FONT color=#000000>使用道具</FONT></A> </DIV></DIV><a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15761&amp;ID=103858&amp;star=1&amp;reply=true" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply.gif" border=0></A> <a href="https://bbs.pinggu.org/post.asp?action=re&amp;BoardID=9&amp;replyID=15761&amp;ID=103858&amp;star=1" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/reply_a.gif" border=0></A> <a href="https://bbs.pinggu.org/post.asp?action=edit&amp;BoardID=9&amp;replyID=15761&amp;ID=103858&amp;star=1" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/edit.gif"></A> <IMG src="https://bbs.pinggu.org/skins/Default/topicmanage.gif"> <a href="https://bbs.pinggu.org/thread-103858-1-1.html&amp;page=1#top" target="_blank" ><IMG src="https://bbs.pinggu.org/skins/Default/p_up.gif"></A> </DIV>
303. <DIV></DIV></DIV></DIV>
304. <DIV class=postlary2>
305. <DIV class=postuserinfo>
306. <DIV >
307. <DIV ><FONT face=Verdana color=#61b713><B>heguoxinaaa</B></FONT></DIV>
308. <DIV ><IMG src="https://bbs.pinggu.org/skins/Default/Male.gif"> </DIV>
309. <DIV >
310. <SCRIPT language=javascript type=text/javascript>document.write (astro(''));<br>&lt;/script&gt;

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头衔：遨游者

等级：本科生

文章：81

积分：817

魅力：8

现金：51

金币：0

门派：丐帮

注册：2006年4月20日

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第 10 楼

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以下是引用vanillaboy在2006-8-10 11:45:00的发言：

如你所言，损失是在不同作物种植的转换过程中造成的，那么如果双方的损失量是不相同的，事实上也就是说，双方的生产技术有差异（如果要把这种损失归结于生产技术原因的话），会发生贸易。

这种损失也可以算作一种交易费用，即为了交易此种作物而不得不改种另一种作物时所花掉的成本。这样就和交易费用为0的假设是矛盾的了。所以在第一题里假设交易费用为0是不严格的。

“那么如果双方的损失量是不相同的，事实上也就是说，双方的生产技术有差异（如果要把这种损失归结于生产技术原因的话），会发生贸易。”

双方的损失量是相同的，即双方的生产技术无差异。

“这种损失也可以算作一种交易费用，即为了交易此种作物而不得不改种另一种作物时所花掉的成本。这样就和交易费用为0的假设是矛盾的了。所以在第一题里假设交易费用为0是不严格的。”

这种损失不可以算作一种交易费用。

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