本研究是利用代理人基模型 (Agent-Based model) 結合遺傳規劃法(genetic programming) 在模組化經濟體系下價格動態對市占率之影響。現今企業多數以市占率作為公司在市場上表現的主要指標，如果擁有高市占率的廠商，可以確定在這產業中生存。以往的文獻顯示模組化經濟下高價格廠商在市場上的表現會優於低價格廠商，取決重要因素為品質，因為高價產品通常品質也較高，容易取得消費者喜愛。本研究想探討是否在這個體系下，消費者所考量的都是以品質高低來決定是否購買產品，是否會有過去以往的價格競爭情形，以及在價格動態體系，市場所呈現的風貌如何。本研究設計39組的加成率參數組，並依據兩間廠商的決策上製作成價格動態矩陣圖表。試圖以這些已知參數組與線性內插法所預測之市占率的參數組進行分析。此研究模擬中發現，在模組化經濟下，價格競爭並不一定會讓市占率趨向於某一點均衡，也可能會趨向於一條路徑上。而且不一定是高價位的廠商會有很大機會獲得市場，也沒有所謂的贏家擁有超高市占率的情況產生。 / This study is the use of agent-based model combined with genetic programming to explore the impact of the price dynamics for the market share in the modular economy. Nowadays, the majority of enterprises use market share as the key performance indicators in the market, if the enterprise has a high market share, it can be determined to survive in this industry. The previous literature shows that manufacturers of high prices on the market under the modular economy will be better than the low-price manufacturers, depending on the important factors for quality. Expensive products are usually higher quality, easily favorite by consumers. My study is to investigate whether consumers consider in this system are based on the level of quality to decide to buy the product or not, and whether there will be price competitive situation, as well as the outlook presented by the market price dynamics system. In this paper, we design 39 markup rate’s parameter set and making price dynamic matrix diagram in accordance with the decisions of two manufacturers. Trying to analyze these known parameter set and the parameter set of the market share predicted by the linear interpolation. The simulation of the study found that in the modular economy price competition does not necessarily make the market share tends to a equilibrium point, or it may also tend to be a equilibrium path. But not necessarily high-priced manufacturers get to the market, there is no so-called winners with higher market share.

We study the facial structure of the independent set polytope using the concept of conflict hypergraphs. A conflict hypergraph is a hypergraph whose vertices correspond to the binary variables, and edges correspond to covers in the constraint matrix of the independent set polytope. Various structures such as cliques, odd holes, odd anti-holes, webs and anti-webs are identified on the conflict hypergraph. These hypergraph structures are shown to be generalization of traditional graph structures. Valid inequalities are derived from these hypergraph structures, and the facet defining conditions are studied. Chvatal-Gomory ranks are derived for odd hole and clique inequalities. To test the hypergraph cuts, we conduct computational experiments on market-share (also referred to as market-split) problems. These instances consist of 100% dense multiple-knapsack constraints. They are small in size but are extremely hard to solve by traditional means. Their difficult nature is attributed mainly to the dense and symmetrical structure. We employ a special branching strategy in combination with the hypergraph inequalities to solve many of the particularly difficult instances. Results are reported for serial as well as parallel implementations.

Univ., Diss.--Kiel, 2002.

We study the long-term performance of companies listed on the Stockholm Stock Exchange that announced their intention to repurchase shares between the years of 2005 and 2013. We test the hypothesis that the market underreacts to share repurchase announcements and that repurchasing firms consequently outperform the market in the following years. We find that repurchasing firms yield a cumulative abnormal return of 15.76 percent, significant at the 1 percent level, over the four years following the announcement. To address the concern that microcaps may be driving the results, we also investigate the differences in abnormal returns between companies of different sizes. We form three portfolios based on market capitalization and find that the large, medium-sized and small companies yield 14.34 percent, 20.13 percent and 6.61 percent respectively. / Vi studerar den långsiktiga avvikelseavkastningen för företag noterade på Stockholmsbörsen som annonserat aktieåterköp mellan åren 2005 och 2013. Vi testar hypotesen att marknaden underreagerar på dessa annonseringar och att aktieåterköpande företag överpresterar marknaden de nästkommande åren. Vi finner att företag som återköper aktier ger en kumulativ abnormal avkastning på 15,76 %, signifikant på enprocentsnivån, under fyra år efter att företaget annonserat ett aktieåterköpsprogram. För att bemöta kritik mot tidigare anomaliforskning om att microcaps ofta snedvrider resultaten, undersöker vi skillnader i avvikelseavkastning mellan företag i olika storlek. Vi skapar tre portföljer baserat på företagens marknadsvärde och finner att stora, mellanstora och små företag genererar en kumulativ avvikelseavkastning på 14,34 %, 20,13 % samt 6,61 %.

Made available in DSpace on 2010-04-20T20:51:36Z (GMT). No. of bitstreams: 3 57859.pdf.jpg: 20237 bytes, checksum: bb85eb8c91e7be27a3f4611b6701be16 (MD5) 57859.pdf: 727631 bytes, checksum: 98a170021910c110e303412ad65d935e (MD5) 57859.pdf.txt: 221562 bytes, checksum: c50817d38d6be63fb738495f92abb5bb (MD5) Previous issue date: 2006-07-18T00:00:00Z / A questão do posicionamento de marcas é central ao processo de gerenciamento de marketing, pois produtos e serviços são adquiridos em grande parte em função da imagem que constroem na mente dos consumidores e clientes. Este trabalho busca explorar as relações existentes entre posicionamento de marca, preferências dos indivíduos e comportamento de compra através do tempo. Mais especificamente, ele se propõe a examinar as relações entre distância de uma marca ao ponto ideal num mapa perceptual e sua participação de mercado, e o quanto mudanças nessa distância através do tempo são acompanhadas de ganhos ou perdas de participação de mercado. Nessa tarefa são utilizadas técnicas de análise multivariada como o escalonamento multidimensional, a fim de elaborar os mapas perceptuais, e o mapeamento de preferências, a fim de localizar pontos ideiais nos mapas elaboradas. Também é utilizada a técnica de análise procrusteana, no processo de comparação de diferentes mapas perceptuais. Uma vez determinadas as distâncias das marcas ao ponto ideal e suas variações entre dois momentos no tempo, tais medidas são correlacionadas às participações de mercado das marcas, e suas variações. Os resultados obtidos no estudo empírico indicam que a variável 'distância ao ponto ideal no mapa perceptual' é boa candidata a um indicador de participação de mercado, presente e futura. No entanto, esta distância não se mostra um bom indicador das variações na participação de mercado propriamente ditas. Outro resultado interessante diz respeito ao conceito de equilíbrio entre a ordenação das marcas em função das distâncias ao ponto ideal e ordenação das marcas em função da participação de mercado, sugerindo que quando existe uma discordância nestas ordens, as participações de mercado das mrcas tendem a mudar na direção de reduzir este desequilíbrio. / The matter of brand positioning is central to the process of marketing management, as products and services are purchased a great deal due to the image they build in consumers and clients minds. This work aims to explore the relationships that exist between brand positioning, subject’s preferences and buying behavior across a period of time. More specifically, it proposes itself to examine the relationships between distance of a brand to the ideal point in a perceptual map and its market share, and to what extent changes in the distance of the brand to the ideal point are followed by gains or losses in market share. In this task, multivariate analysis techniques are employed, such as multidimensional scaling, in order to build the perceptual maps, and preference mapping, in order to determine the location of ideal points in the maps. Procrustean analysis is also employed in the process of comparing individual maps to each other. Once determined the distances of brands to the ideal point and its changes across two points in time, these measures are compared to the market share of these brands, and its changes. The results from the empirical study indicate that the variable “distance to the ideal point in a perceptual map” is a good indicator of market share, present and future. However, this distance does not represent a good indicator of the market share changes themselves. Another interesting result relates to the concept of equilibrium between ordering of brands according to distances to the ideal point, and ordering of brands according to market share, suggesting that, when there is disagreement between these two orderings, the market share of the brands tend to shift towards a reduction of this disequilibrium.

Le rachat d'actions est devenu au fil des années une opération financière répondue au même titre que la distribution de dividende. Toutefois, le rachat reste une opération complexe dont la recherche peine à apprécier les motivations et les conséquences. En effet, la décision de rachat est à la fois une décision d'investissement, de distribution, de structure de capital et un moyen de modifier la structure de l'actionnariat. Cette recherche se penche sur les motivations des opérations de rachat d'actions annoncées sur le marché français et analyses leurs conséquences et impacts sur le cours de l'action, les conflits d'agence et la structure de l'actionnariat. / The share repurchase has become in recent years an increasingly important instrument for distributing cash to shareholders. However, the repurchase is a complex operation whose research has difficulties to appreciate its motivations and consequences. Indeed, the decision to repurchase is an investment, payout, and capital structure decision and also the way to change the ownership structure. This research examines the motivations of buyback program of French market and analyzes their implications and impacts in stock price, agency conflicts and ownership structure.

This master thesis focuses on the worldwide optical connection situation.Within the respective regions of Asia-Pacific,the Americas and Europe, it identifies the main countries and focuses on the situation and share of FTTx subscribers in them.It tries to answer the question of what technologies are represented the most on particular markets. Within each country,two service providers are chosen and their offer analyzed.For an overview,the price offer for an Internet connection with the highest transmission rate and the price for VoIP service are provided. The analytical part uses the obtained data from individual countries and regions for a price comparison and market forecast.The price comparison deals with the price level of a standard connection in relation to GDP per capita in PPS.This comparison enables the discovery of how expensive the Internet connection via FTTx is in a particular country.Furthermore, the analytical part, in relevant countries, focuses on the calculation of the ratio of costs for the yearly use of a FTTx subscription in relation to the disposable family income. The highest ratio-8.37%-was recorded in India. The thesis also includes a market forecast in the horizon of the end of 2009 and 2010 for the most important countries.For each country,the main growth factor is identified and subsequently the development for the entire year 2009 and 2010 is forecast.The worldwide forecast is 61.37 million (as of the end of 2009) and 72.67 million (as of the end of 2010) FTTx subscriptions.The contribution of this master thesis is the analysis of in what state of development the market of Internet optical connection is in the most important countries, with price comparisons and a market forecast constituting further contributions.

The object of this Master´s Thesis is proposal of shopping centre´s marketing strategy. Theoretic part deals with the issue of a retail trade and marketing planning. Current state analysis are made in practical part, which is the main resource for shopping centre´s marketing strategy proposal and second floor remodeling.

Subject of this thesis is initial public offering and it’s main goal is describing of obtaining external funds for company’s funding. In the first part of the thesis is description of basic structure of financial markets, especially stock markets. The term IPO and it’s advantages and disadvantages are described. The last part is focused on individual steps of IPO realization. This thesis is focused on evaluation of chosen company’s entry on stock market. Especially macro-economic presumptions for IPO, readiness of chosen company and choice of suitable market are evaluated.

The diploma thesis is by its nature focused on evaluation of company performance. Analyzed company SITA CZ, a.s. is one of the market leaders providing services regarding of treatment with non-hazardous and hazardous waste. This company is analyzed in two aspects within diploma thesis. Evaluation focuses on market position and performance within specific economic activities according to NACE rev.2 – 382, at first. Second evaluation is focused on competitive benchmarking that should pin-point particular weaknesses. The main goal of the diploma thesis is to propose solutions to improve company performance and market position.