本文選題：最小間隔樹 + 最短距離法�。� 參考：《青島大學(xué)》2017年碩士論文

【摘要】：如今世界各國經(jīng)濟競爭愈加激烈,各國都想了解自己的經(jīng)濟地位,因此研究經(jīng)濟差異的國際比較項目受到越來越多的關(guān)注。國際比較項目研究發(fā)現(xiàn),計算購買力平價并進行經(jīng)濟分析往往能得到理想的比較結(jié)果。購買力平價測算方法是根據(jù)“一價定律”經(jīng)濟理論發(fā)展而來的,其計算結(jié)果更貼近實際經(jīng)濟狀況。中國地域遼闊、地區(qū)經(jīng)濟差異明顯,研究中國各省市經(jīng)濟差異同樣可以采用購買力平價測算方法。距離法購買力平價測算研究分別運用最小間隔樹和最短距離法進行實證研究,并對兩種實證結(jié)果進行比較。文章在介紹距離法理論基礎(chǔ)后,分別運用最小間隔樹法和最短距離法對中國31個省市的經(jīng)濟發(fā)展?fàn)顩r進行實證比較分析,并比較兩種方法異同點。文章不僅對最小間隔樹法和最短距離法理論及實證分析方法作了詳細闡述,而且分別運用兩種方法實證分析中國省市之間經(jīng)濟發(fā)展水平,最后對最短距離法實證分析步驟作出了改進。距離法購買力平價測算研究是用廣義距離作為區(qū)域差異衡量指標(biāo),通過尋找最優(yōu)路徑并測算各地區(qū)購買力平價的方式分析地區(qū)間經(jīng)濟差異。文章采用拉氏和帕氏指數(shù)之差(LPS)作為距離衡量指標(biāo),分別運用MST和MD進行實證研究,提出MD實證改進步驟并驗證。文章得到以下幾個結(jié)論:第一,MST實證研究是從宏觀到微觀、從整體到局部的過程,最小間隔樹法將所有比較地區(qū)融為一個整體,該方法整體性很強;最短距離法實證分析是從微觀到宏觀、從局部到整體的過程,該方法局部性更強。第二,MD最優(yōu)路徑長度和距離明顯小于MST最優(yōu)路徑和距離,從最優(yōu)路徑這個角度考慮,最短距離法優(yōu)于最小間隔樹方法。第三,MST和MD實證分析所得購買力平價排序結(jié)果完全相同。第四,兩種方法在本文實證研究中穩(wěn)定性較強,不同省市分別作參考省得到相同的PPP排列順序。文章不足之處:第一,因數(shù)據(jù)無法獲得,沒有運用絕對數(shù)量差異指數(shù)(WAQD)和相對價格差異指數(shù)(WRPD)進行實證并與LPS結(jié)果比較;第二,文章實證研究數(shù)據(jù)范圍是消費型商品,所得結(jié)論只適用于消費類商品領(lǐng)域;第三,MD實證改進步驟運算量仍很大,最短距離法實證方法需要更深層次改進。
[Abstract]:Nowadays, more and more countries in the world want to know their economic status, so more and more attention has been paid to the international comparative project of studying economic differences. The International comparison Project finds that calculating purchasing power parities and conducting economic analysis often result in ideal comparison results. The calculation method of purchasing power parity is developed according to the economic theory of "law of one price", and the calculation result is closer to the actual economic situation. China has a vast territory and obvious regional economic differences. The PPP method can also be used to study the economic differences between provinces and cities in China. The distance method is used to measure the purchasing power parity (PPP), and the minimum interval tree and the shortest distance method are used to carry out the empirical research, and the two empirical results are compared. After introducing the theoretical basis of distance method, this paper compares and analyzes the economic development of 31 provinces and cities in China by using the minimum interval tree method and the shortest distance method, and compares the similarities and differences between the two methods. This paper not only elaborates the theory and empirical analysis method of minimum interval tree method and shortest distance method, but also uses two methods to analyze the level of economic development between provinces and cities in China. Finally, the shortest distance method is improved. The study of distance PPP is to use generalized distance as an index to measure regional differences and analyze the regional economic differences by looking for the optimal path and measuring the PPP of different regions. In this paper, the difference between LPSs and LPSs is used as the measure of distance, and MST and MD are used in the empirical research, and the improvement steps of MD are put forward and verified. This paper draws the following conclusions: first, MST empirical research is from macro to micro, from the whole to the local process, the minimum spacer tree method to all comparative areas into a whole, this method has a strong integrity; The empirical analysis of the shortest distance method is from micro to macro, from local to whole, and the method is more local. Second, the length and distance of the MD optimal path is obviously smaller than the MST optimal path and distance. From the view of the optimal path, the shortest distance method is superior to the minimum interval tree method. Third, MST and MD empirical analysis of purchasing power parity ranking results are identical. Fourth, the two methods have strong stability in this empirical study, different provinces and cities as reference provinces to obtain the same PPP order. First, because the data are not available, the absolute quantity difference index (WAQD) and the relative price difference index (WRPD) are not used to carry on the demonstration and compare with the result of LPS. The conclusion can only be used in the field of consumer goods, the third is that the calculation of the improvement steps of MD is still very large, and the method of the shortest distance method needs to be further improved.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：F126.1

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本文編號：2015172