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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

人工股票市場的Agent-Based計算建模 / On Agent-Based Computational Modeling of Artificial Stock Markets

廖崇智, Liao, Chung-Chih Unknown Date (has links)
我們把經濟體視為一個複雜適應系統(complex adaptive system), 強調系統中異質性(heterogeneous)agent的學習適應行為與agent之間的互動性交互作用, 此時主流經濟學裡的分析架構, 如:代表性個人模型(represesentive agent model)、理性預期(rational expectation)、固定點均衡分析(fixed-point equilibrium analysis)等將不再適用, 取而代之的是演化經濟學(evolutionary economics)的研究典範, 這樣的研究架構下, 並沒有適當的數學分析工具可資運用, 因此我們改以agent-based建模(agent-based modelng)的社會模擬(social simulation)來建構一個人工的經濟體(artificial economy), 以此為主要研究方法, 這就是agent-based計算經濟學(agent-based computational economics)或稱人工經濟生命(artificial economic life)。 本文中以股票市場為主要的研究課題, 我們以遺傳規劃(genetic programming)的人工智慧(artificial intelligence)方法來模擬股市中有限理性(bounded rational)異質交易者的交易策略學習行為, 建構出一個人工股票市場(artificial stock market), 在這樣的架構下, 我們成功地產生出類似真實股票市場的股價時間序列特性, 我們同時也檢定了人工股票市場中價量的因果關係, 說明了在沒有外生因素之下, 人工股票市場的複雜系統可自發地產生出雙向的價量因果關係, 進一步地, 我們研究下層agent(交易者)行為與上層股價時間序列行為的關聯性, 我們也發現個體的行為並不能直接加總或推論出複雜適應系統的總體行為, 這就是突現性質(emergent property)的發生, 最後, 本文描述了agent-based計算經濟學研究架構的優勢與缺點, 再附帶介紹一個用以進行agent-based建模相關研究的軟體程式庫-SWARM。
12

Sobre esta igreja edificarei minha empresa: organizações religiosas e empreendedorismo

Serafim, Maurício Custódio 22 February 2008 (has links)
Made available in DSpace on 2010-04-20T20:48:28Z (GMT). No. of bitstreams: 3 71050100662.pdf.jpg: 16335 bytes, checksum: 4e90463f2fd6b8004714ca3ad2b27933 (MD5) 71050100662.pdf.txt: 666930 bytes, checksum: 02eb4c5a86c3d81814ac4d0d57e3172b (MD5) 71050100662.pdf: 2694106 bytes, checksum: b5c9ff629ce055c1a11850a7cbb1afd4 (MD5) Previous issue date: 2008-02-22T00:00:00Z / With this work I intended to approach the following research problem: In which ways do the religious organizations promote the entrepreneurship among their members and how they support the enterprising follower in Brazil? The research has the economic sociology approach and the strategy I employ in my research is a qualitative and comparative case study of two religious organizations. The first one is of the Catholic Church, called Focolare Movement. And the other one is of an Evangelical Church, locally denominated “Renascer em Cristo” (Reborn in Christ). The data were collected through observation, interviews and documental research. In general, the religious structures of the investigated organizations form a special type of social capital, denominated of spiritual capital – through closure of social networks, appropriable social organization, obligations and norms, information channels and religious networks of mutual aid – capable to create and support organizational resources, which are cultural/symbolic resources, formation, information and spiritual support/motivational spaces, and that are mobilized in a way that facilitates the entrepreneurs’ actions. These resources give relative advantages to the entrepreneurs, such as: religious technologies; psychological support; reduction of the costs of the collection and access to the information, of negotiation and of the establishment of contracts; specific information and interpreted in agreement with the religious world vision; a system of meanings that creates that world vision and sustained by the plausibility structures, giving them larger subjective degree of certainty, hope and faith concerning their businesses; services rendered technicians by members of the organization; development of the human capital due to the continuous learning through courses, seminars, lectures, and congresses; changes of experience; and possibilities of businesses, including possible partners, suppliers and customers. / Com esse trabalho me propus a abordar o seguinte problema de pesquisa: como as organizações religiosas incentivam o empreendedorismo e apóiam o empreendedor-adepto. A estratégia de pesquisa adotada foi o estudo de caso qualitativo e comparativo de duas organizações religiosas: uma evangélica (Igreja Renascer em Cristo) e outra católica (Movimento dos Focolares). Os dados foram coletados por meio de observação, entrevistas e pesquisa documental. Viu-se que, de modo geral, as estruturas religiosas das organizações investigadas formam um tipo especial de capital social, denominado de capital espiritual – por meio de “fechamento” de redes sociais, organização social apropriável, obrigações e normas, canais de informações e redes religiosas de ajuda mútua – capaz de criar e sustentar recursos organizacionais – quais sejam, recursos culturais/simbólicos, espaços de formação, informação e apoio espiritual/motivacional – e que são mobilizados de modo a facilitar as ações de seus empreendedores. Tais recursos dão vantagens relativas a esses empreendedores por oferecerem benefícios tais como: tecnologias religiosas; apoio psicológico; redução dos custos da coleta e acesso à informação, de negociação e do estabelecimento de contratos; informações específicas e interpretadas de acordo com a visão de mundo religiosa; um sistema de significados que cria essa visão de mundo e sustentada pelas estruturas de plausibilidade, dando-lhes maior grau subjetivo de certeza, esperança e fé acerca de seus negócios; prestações de serviços técnicos por parte de membros da organização; desenvolvimento do capital humano devido à aprendizagem contínua por meio de cursos, seminários, palestras, congressos; trocas de experiência; e possibilidades de negócios, incluindo possíveis parceiros, fornecedores e clientes.
13

島の制度 : 島の法的地位に対する比中仲裁裁判判決への批判的検討 / シマ ノ セイド : シマ ノ ホウテキ チイ ニタイスル ヒチュウ チュウサイ サイバン ハンケツ エノ ヒハンテキ ケントウ

林 秀鳳, Hsiu-Feng Lin 20 March 2021 (has links)
博士(法学) / Doctor of Laws / 同志社大学 / Doshisha University

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