The main contributions of this dissertation are listed as the followings : l ) deducing and proving the " three in one " theory of natural monopoly, that is, from the angles of economies of scale, economies of scope and economies of network, giving an explanation of natural monopoly ; 2 ) putting forward the concept of " strict superadditivity " and proving that total value function and total revenue function of network economy have strict superadditivity ; 3 ) summarizing the emerging characteristics in the market definition of natural monopoly, that is, in the monopoly industry, " market " tends to be more and more smaller than " industry " ; 4 ) expounding that the objective patterns of regulatory reforms of the railway industry in china are explicit regulation with partly characteristics of implicit regulation ; 5 ) proving the idea that the structural reforms of the railway industry in china should be hierarchical ; 6 ) demonstrating the theoretical bases for whether infrastructure management should be separated from transpo rt operation ; 7 ) expounding and proving that the interior of the railway industry in china should implement the differential property rights reform pattern
本文的研究特點在於: ( 1 )在規模經濟、范圍經濟的基礎上進一步推導並證明了網路經濟與自然壟斷的關系,即自然壟斷可以從規模經濟、范圍經濟、網路經濟三個角度來解釋論述; ( 2 )明確提出了一個與鮑莫爾、
潘澤與威利格等人提出的「成本劣加性」相類似的概念? ?價值優加性,並證明了網路經濟的總價值函數和總收益函數具有嚴格優加性; ( 3 )概括了自然壟斷市場界定中所出現的新特徵,即在壟斷產業中, 「市場」正越來越小於「產業」 ; ( 4 )進一步論證了中國鐵路產業規制創新的目標模式是兼有部分內生規制特點的外生規制; ( 5 )在中國鐵路產業的結構改革中應體現分層次的思想; ( 6 )明確論述了內
容提要鐵路路網公司等自然壟斷環節是否分割的理論基礎; ( 7 )提出並進一步證明了中國鐵路產業內部應實行差異化的產權改革模式。
Reported by narine stepanyan
容納任史第
潘陽報導
"praise from panza is indeed valuable on such subjects", said clodius gravely.
「能得到
潘薩對這些東西的誇獎確實是很不
容易的,」克羅狄俄斯一本正經地說。
Tv guide released its first issue in a full - color, larger format tuesday, part of an overall revamp aimed at trying to keep the 52 - year - old magazine relevant in an age of on - screen television guides. the new issue features ty pennington of " extreme home makeover : home edition " on its cover, as well as a new makeup that emphasizes stories, columns and gossip about tv shows over tv listings
改版后的第一期電視指南,用美國著名的真人秀節目終極改造:家庭版的主持人泰潘寧頓做了封面人物在內容上,原有的電視節目清單里增加了更多的影視故事專欄作家文章和演員花邊新聞等內容,雜志的可讀性顯著增強。