【摘要】：網(wǎng)絡(luò)效應(yīng)作為一種在信息經(jīng)濟時代廣泛存在的經(jīng)濟現(xiàn)象,正為越來越多的經(jīng)濟學(xué)家所關(guān)注。一般認(rèn)為,網(wǎng)絡(luò)效應(yīng)的存在,會使市場在位者擁有用戶基礎(chǔ)(installed base)上的“先行優(yōu)勢”。而這種先行優(yōu)勢究竟會在多大程度上加大新產(chǎn)品或新技術(shù)進(jìn)入市場的難度,一直是經(jīng)濟學(xué)家所關(guān)注的問題。本文建立了一個基于主體的計算經(jīng)濟學(xué)模型,試圖通過計算機模擬實驗來研究在存在網(wǎng)絡(luò)效應(yīng)的市場中,一種與原有產(chǎn)品不兼容的新產(chǎn)品最終獲得的市場份額與各種背景條件之間的關(guān)系。與同類研究不同的是,本文在對網(wǎng)絡(luò)效應(yīng)進(jìn)行細(xì)分的基礎(chǔ)上,提出了重友效應(yīng)的概念,并對重友效應(yīng)的大小和潛在消費者關(guān)系網(wǎng)絡(luò)的結(jié)構(gòu)對最終市場結(jié)構(gòu)的影響進(jìn)行了深入研究。除此之外,本文還專門對政府的市場進(jìn)入扶持政策所能取得的效果進(jìn)行了討論。在具有較強網(wǎng)絡(luò)效應(yīng)的產(chǎn)業(yè)中,以扶持較晚進(jìn)入市場的本國企業(yè)為目的的貿(mào)易政策和產(chǎn)業(yè)政策得到了廣泛的應(yīng)用。分析不同的市場進(jìn)入扶持政策在不同背景條件下所能取得的效果,對于政策的選擇具有重要的現(xiàn)實意義。 本文的結(jié)構(gòu)安排如下:第1章對本文的研究動機和研究主題進(jìn)行了詳細(xì)的闡述;第2章對網(wǎng)絡(luò)效應(yīng)及一些相關(guān)概念進(jìn)行了簡介,并介紹了有關(guān)網(wǎng)絡(luò)效應(yīng)下的新產(chǎn)品進(jìn)入的一些研究;第3章對本文的主要創(chuàng)新點之一——重友效應(yīng)進(jìn)行了詳細(xì)的闡述;第4章對幾種有代表性的網(wǎng)絡(luò)結(jié)構(gòu)進(jìn)行了介紹,并分析ACE方法的優(yōu)缺點,闡述本文采用這一方法的原因;第5章提出了一個基于主體的計算經(jīng)濟學(xué)模型;第6章根據(jù)這個模型對重友效應(yīng)和潛在消費者關(guān)系網(wǎng)絡(luò)的結(jié)構(gòu)對新產(chǎn)品的最終市場份額的影響進(jìn)行了計算機模擬實驗,并得出了一些結(jié)論。第7章對模型進(jìn)行了擴展,分析了不同市場進(jìn)入扶持政策在不同背景條件下所取得的效果。第8章闡述并分析了兩個新產(chǎn)品成功進(jìn)入市場的案例。第9章對全文進(jìn)行了總結(jié),并指出了進(jìn)一步的研究方向。 本文的主要創(chuàng)新點在于:(1)在對網(wǎng)絡(luò)效應(yīng)進(jìn)行細(xì)分的基礎(chǔ)上,明確提出了重友效應(yīng)的概念,并將重友效應(yīng)的大小作為一個變量引入到模型中,進(jìn)而分析重友效應(yīng)的大小對最終市場結(jié)構(gòu)具有什么樣的影響。在以往的經(jīng)濟學(xué)文獻(xiàn)中,只有極少數(shù)經(jīng)濟學(xué)家提及過類似于重友效應(yīng)的現(xiàn)象,但他們只對這種現(xiàn)象進(jìn)行了簡單
[Abstract]:As a widespread economic phenomenon in the era of information economy, network effect is paid more and more attention by more and more economists. It is generally believed that the existence of network effect will make the incumbent of the market have the "leading edge" on the user-based (installed base). The extent to which this advance advantage will make it more difficult for new products or technologies to enter the market has been an issue of concern to economists. In this paper, an agent-based computational economics model is established to study the existence of network effects in markets with network effects through computer simulation experiments. The relationship between the market share of a new product that is incompatible with the original product and various background conditions. Different from the similar research, this paper puts forward the concept of "double friend effect" on the basis of subdividing the network effect. Furthermore, the influence of the size of the friendship effect and the structure of the potential consumer relationship network on the final market structure is studied. In addition, this paper also discusses the effect of the government's market entry support policy. Among the industries with strong network effects, trade policies and industrial policies aimed at supporting domestic enterprises entering the market late have been widely used. It is of great practical significance to analyze the effects of different market entry support policies under different background conditions. The structure of this paper is arranged as follows: chapter 1 describes the motivation and subject of this paper in detail; Chapter 2 introduces the network effect and some related concepts, and introduces some research on the entry of new products under the network effect. In chapter 4, several representative network structures are introduced, and the advantages and disadvantages of ACE method are analyzed. In chapter 6, computer simulation experiments are carried out based on the model and the influence of the structure of the potential consumer relationship network on the final market share of the new product, and some conclusions are drawn. Chapter 7 extends the model and analyzes the effects of different market entry support policies under different background conditions. Chapter 8 describes and analyzes the successful entry of two new products into the market. Chapter 9 summarizes the full text and points out the further research direction. The main innovations of this paper are as follows: (1) based on the subdivision of the network effect, the concept of the refriend effect is clearly put forward, and the magnitude of the refriend effect is introduced into the model as a variable. And then analyze the size of the effect on the final market structure. In previous economic literature, only a handful of economists have referred to phenomena similar to the friendliness effect, but they have done so simply.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2004
【分類號】：F062.5

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本文編號：2390945