1,720,999 research outputs found

    Tacit Collusion and Market Concentration under Network Effects

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    In an infinitely repeated Cournot game with trigger strategy punishment, we demonstrate that the relationship between market concentration and collusion sustainability depends on the strength of network externalities. The latter is shown to interact with the number of firms and to affect the profitability of cooperation vs. competition, which delivers the result, challenging conventional wisdom, that lower market concentration can make collusion more stable

    Usage of formal financial services in India:: Demand barriers or supply constraints?

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    Estimating the role of both demand-side and supply-side factors in financial inclusion and its distribution is important for policy making. However, existing literature has primarily focused on supply-side factors. In this context, this paper estimates relative importance of removing demand-side barriers and eliminating supply constraints to enhance financial inclusion in India. It also measures the extent of concentration of usage of formal financial services among richer households. Results suggest that, while availability of banking services has a significant positive effect on usage of formal financial services, its contribution in inducing households to use formal financial services is very small compared to the contribution of factors, such as education, income, employment status, gender and social norms, that influence the demand for formal financial services. It highlights the importance of placing greater emphasis on addressing demand-side barriers, rather than on improving physical availability of banking services, to promote financial inclusion in India

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Estimating the probability of trade union membership in India: Impact of communist parties, personal attributes and industrial characteristics

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    The paper analyses the impact of the reach of communist parties, the degree of political activism, personal attributes of workers, and industrial characteristics on the individual decision to unionise for Indian non-agricultural regular workers using micro data from the 2004-05 Employment and Unemployment Survey, NSSO, linked to state-level factors. A notable result is that the reach of communist parties has considerable effect on unionisation probability. Moreover, it seems that mere existence of communist parties in a state also facilitates unionisation to some extent. State-level political activism and unemployment rate also influence the individual decision to be unionist. The paper concludes also that worker’s gender, marital status, ethnic background, employment status, experience, occupation, sector of employment, establishment size, and type of industry remain important in the determination of union membership

    Delegation and emission tax in a differentiated oligopoly

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    This paper examines how product differentiation as well as strategic managerial delegation affects optimal emission tax rate, environmental damage and social welfare, under alternative modes of product market competition. It shows that, under pure profit maximization, the (positive) optimal emission tax rate is not necessarily decreasing in degree of product differentiation, irrespective of the mode of competition. The possibility of emission tax rate to be positive and lower for more differentiated products, under quantity (price) competition, is higher (lower) in case of delegation than that in case of no delegation. It also shows that, under quantity (price) competition, the equilibrium emission tax rate, environmental damage and social welfare are higher (lower) in case of delegation than that in case of no delegation

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Technology adoption in a differentiated duopoly:Cournot versus bertrand

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    This paper compares equilibrium technology adoption in a differentiated duopoly under two alternative modes of product market competition, Cournot and Bertrand. It shows that the cost of technology has differential impact on technology adoption, that is, on cost-efficiency of the industry, under two alternative modes of product market competition. The possibility of ex post cost asymmetry between firms is higher under Bertrand competition than under Cournot competition. If the cost of technology is high, Bertrand competition leads to higher cost-efficiency than Cournot competition provided that the cost reducing effect of the technology is high. On the other hand, if the technology reduces the marginal cost of production by a very low amount, Cournot competition may lead to higher cost-efficiency than Bertrand competition

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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