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Intermediate microeconomics : A modern approach
01 Jan 2006-
TL;DR: The Varian approach as mentioned in this paper gives students tools they can use on exams, in the rest of their classes, and in their careers after graduation, and is still the most modern presentation of the subject.
Abstract: This best-selling text is still the most modern presentation of the subject. The Varian approach gives students tools they can use on exams, in the rest of their classes, and in their careers after graduation.
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28 Apr 2009
TL;DR: A novel strategy of discovering PCTTP based on users' preferences in text mining is proposed and a quality evaluation model is introduced to measure the compatibility of discovering theme patterns.
Abstract: Discovering a representative set of theme patterns from a large amount of text for interpreting their meaning has always been concerned by researches of both data mining and information retrieval. Recent studies of theme pattern mining have paid close attention to the problem of discovering a set of compatible top-k theme patterns with both high-interestingness and low-redundancy. Since different users have different preferences on interestingness and redundancy, how to measure the attributes of the users' preferences, and thereby to discover "preferred compatible top-k theme patterns" (PCTTP) is urgent in the field of text mining. In this paper, a novel strategy of discovering PCTTP based on users' preferences in text mining is proposed. Firstly, an evaluation function of the preferred compatibility between every two theme patterns is presented. Then the preferred compatibilities are archived into a data structure called theme compatibility graph, and a problem called MWSP based on the compatibility graph is proposed to formulate the problem how to discover the PCTTP. Secondly, since MWSP is proved to be a NP-Hard problem, a greedy algorithm, DPCTG, is designed to approximate the optimal solution of MWSP. Thirdly, a quality evaluation model is introduced to measure the compatibility of discovering theme patterns. Empirical studies indicate that a high quality set of PCTTP on four different sub text sets can be obtained from DBLP.
3 citations
Cites background from "Intermediate microeconomics : A mod..."
...To prove the Theorem 1, we will firstly introduce the concept of elasticity. Definition 7 (Elasticity) [ 6 ]....
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01 Jan 2007
TL;DR: In this paper, the authors verified market competition between passenger vans and conventional buses based on demand side and found that there was no price competition and that the passenger van market is an oligopoly market with implication of product differentiation.
Abstract: Initially, passenger vans in Bangkok were illegal. However, passengers preferred them to conventional buses due to their speed, comfort and ease of access at affordable prices. Conventional bus operators considered the passenger vans as competitors who caused lower revenues. Therefore, Thai government started enforcing passenger van regulations in 1999 to provide safe public transport and to eliminate competition. This policy was not based on theoretical consideration. An analysis of passenger vans market in Bangkok has not been undertaken. Moreover, illegal passenger vans are still existent. This study verified market competition between passenger vans and conventional buses based on demand side and found that there was no price competition. The passenger van market is an oligopoly market with implication of product differentiation. Deregulation of passenger ban entry was recommended to bring more licensed passenger vans and to create competitive market environments where services would be improved. Regulations related to safety and qualities of the services were maintained.
3 citations
TL;DR: In this paper, the authors identify factors influencing the preferred path of privatization with the ordered probit approach using data collected from 841 farms, and find that attitudes differ with regard to the managerial skills of a farmer, farm type, and farm location.
Abstract: The emerging market-oriented agriculture in Poland creates uncertainty affecting the living standards of the farm population. Attitudes toward the privatization of agricultural marketing services, a visible demonstration of the new economic system, range from support for speedy ownership transfer to reversal of the process. The empirical model identifying factors influencing attitudes was based on the premise of the random utility maximization concept. Using data collected from 841 farms, factors influencing the preferred path of privatization were identified with the ordered probit approach. Results indicate that attitudes differ with regard to the managerial skills of a farmer, farm type, and farm location.
3 citations
Posted Content•
TL;DR: In this article, the authors pointed out that the situation identified by Samuelson (1974) is not a "curious case" and characterised an appropriate redistribution of endowments to achieve a desired distribution of utilities when equilibrium is not unique.
Abstract: Samuelson (1974) noticed what he called a 'curious case' in which a redistribution of endowments, of the sort usually considered in connection with the Second Welfare Theorem, would not necessarily achieve a desired distribution of utilities. Samuelson's observation raises important questions for common interpretations of the Second Welfare Theorem. It also raises the interesting question of the sorts of redistributions that are needed to actually achieve a desired distribution of utilities. Motivated by Samuelson's work, this paper aims to do three things. Firstly, to explain why common interpretations of the Second Welfare Theorem are in jeopardy in the situation considered by Samuelson (1974). Secondly, to point out that far from being a 'curious case', the situation identified by Samuelson (1974) is normal (indeed generic). Thirdly to characterise an 'appropriate' redistribution of endowments to achieve a desired distribution of utilities when equilibrium is not unique.
3 citations
Cites background from "Intermediate microeconomics : A mod..."
...For instance Varian (1987) similarly claims that: “......
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01 Jan 2014
3 citations