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Product differentiation, competitive toughness, and intertemporal substitution
The Scandinavian Journal of Economics. 2019. Vol. 121. No. 3. P. 1244-1269.
Ivanova V., Ushchev P.
Standard measures of competitive toughness fail to capture the fact that, as consumers optimize intertemporally, firms operating today compete with (yet non-existent) businesses which will be started tomorrow. We develop a two-tier CES model of dynamic monopolistic competition in which the impact of product differentiation on the market outcome depends crucially on the elasticity of intertemporal substitution (EIS). The degree of product differentiation per se fails to serve as a meaningful indicator of competitive toughness: what matters is its cross-effect with EIS. We also extend the model to the case of non-CES preferences to capture variable markups.
Ivanova V., Ushchev P., / Высшая школа экономики. Series WP BRP "Economics/EC". 2015. No. WP BRP 99/EC/2015.
We develop a dynamic model of monopolistic competition which sheds light on how the interplay between the degree of product differentiation and intertemporal elasticity of substitution affects the steady-state market outcome. Consumers love variety and split their labor endowment between wage labor, which brings immediate income, and producing capital, which promises a rent in the ...
Added: October 10, 2015
Zhelobodko E. V., Kokovin S. G., Parenti M. et al., Econometrica 2012 Vol. 80 No. 6 P. 2765-2784
We propose a model of monopolistic competition with additive preferences and variable marginal costs. Using the concept of "relative love for variety," we provide a full characterization of the free-entry equilibrium. When the relative love for variety increases with individual consumption, the market generates pro-competitive effects. When it decreases, the market mimics anti-competitive behavior. The ...
Added: February 5, 2013
Osharin A., Valery Verbus, Irina Bakunina et al., Journal of Economic Structures 2020 Vol. 9 P. 1-12
The paper develops a two-country monopolistic competition model of trade featuring country-specifc consumer tastes. The accounting for heterogeneity in tastes is achieved by assuming diferent elasticities of substitution in the CES utility function for diferent country consumers. The proposed framework extends the canonical Krugman’s approach by revealing new efects regarding markups response to consumer heterogeneity ...
Added: October 10, 2020
Pospelov I. G., Radionov S., Advances in Systems Science and Applications 2020 Vol. 20 No. 2 P. 119-130
We present a natural generalization of the Dixit-Stiglitz monopolistic competition model (DSM) — we assume that there is a continuum of industries, each of them described as in DSM, and each characterized with its own elasticity of substitution. Although firms in all industries share the same level of productivity and costs, exogenous technological progress leads ...
Added: December 8, 2020
Sharunova V., Aistov A., Kichko S. et al., Экономический журнал Высшей школы экономики 2015 Т. 19 № 2 С. 218-248
This paper studies how heterogeneous individuals, that differ by entrepreneurial skills
and productivity as a worker, endogenously choose their occupation (workers vs.
entrepreneurs) based on expected income comparison (wages vs. profits). Each entrepreneur runs a
firm that produces a single variety of a horizontally differentiated good under monopolistic
competition. We show that the cutoff for occupational selection between workers ...
Added: June 16, 2015
Rozanova N. M., Общественные науки и современность 2021 № 1 С. 63-72
Patterns for competitive and monopoly behaviour, market power configurations and instruments of interfirm relationships are under radical transformation in a digital era. There arise new forms of monopolistic strategies that aim at establishing, strengthening and withstanding long-term market power in various industries. Analysis of Russian and foreign economic investigations that was done in the article ...
Added: March 20, 2021
Antoshchenkova I., Bykadorov I., Математическая теория игр и ее приложения 2014 Т. 6 № 2 С. 3-31
We consider a monopolistic competition model with endogenous choice of technology in the closed economy case. The aim is to make comparative statistics of equilibrium and social optimal solutions with respect to "technological innovation"; parameter which influences on costs. Key findings: with the growth of innovation and investment in the production increase; behavior of the ...
Added: October 18, 2014
Zhelobodko E. V., Sidorov A., Thisse J., Журнал Новой экономической ассоциации 2013 № 19 С. 10-26
The paper studies a market of horizontally differentiated good under increasing return to scale and exogenous number of firms. Three concepts of equilibria are compared: Cournot, Bertrand and monopolistic competition. Under fairly general assumptions on consumer’s preferences, it is shown that Lerner index is the highest in Cournot case, monopolistic competition provides the lowest one ...
Added: November 14, 2013
Mamedli M., Норкина О.А., Журнал Новой экономической ассоциации 2019 № 3(43) С. 34-56
One of the key issues of optimal fiscal policy is public goods financing. Financial repression is commonly used by governments as an implicit taxation of financial sector along with explicit labor and capital taxes. In this paper we consider the optimal choice of benevolent government in an overlapping generations’ model with an endogenous labor supply ...
Added: October 28, 2019
Bykadorov I., Kokovin S. G., Вестник НГУЭУ 2014 № 1 С. 326-337
In 2000s, Russian large retailers captured a large share of the market and obtained a significant market power. This change in the market organization may enhance or deteriorate social welfare. Public interest in this issue stimulated adoption by the Russian Parliament (State Duma) of the law against the concentration of trade in the hands of ...
Added: October 18, 2014
Kichko S., Kokovin S. G., Zhelobodko E. V., / Austrian Institute of Economic Research, Vienna Institute for International Economic Studies, Computing Centre for Economics and Social Sciences. Series FIW "FIW Working Paper". 2013. No. 124.
We develop a two-factor, two-sector trade model of monopolistic competition with variable elasticity of substitution. Firm profit and firm size may increase or decrease with market integration depending on the degree of asymmetry between countries. The country in which capital is relatively abundant is a net exporter of the manufactured good, while both firms' size ...
Added: November 19, 2013
Норкина О.А., Экономическая политика 2018 Т. 13 № 1 С. 122-147
Due to its implicit nature, financial repression is a convenient fiscal policy measure for the populist government. Financial repression gives the opportunity for the populist government to finance more government spending with less explicit taxes. The optimal parameters of financial repression in the form of nonmarket debt placement are determined for the populist government. Populism ...
Added: June 5, 2018
Pekarski S. E., Norkina O., / Высшая школа экономики. Series WP BRP "Economics/EC". 2014. No. 81.
Modern financial repression in advanced economies does not rely on increasing seigniorage revenue, but mostly rests upon regulatory measures to enlarge the demand for public debt that delivers extremely low or negative real interest rate. In this paper we propose the extension of the overlapping generations model to question the optimality of financial repression in ...
Added: December 11, 2014
Pospelov I. G., Radionov S., / Высшая школа экономики. Series WP BRP "Economics/EC". 2014. No. WP BRP 80/EC/2014 .
We consider standard monopolistic competition models with aggregate consumer's preferences defined by two well-known classes of utility functions | the Kimball utility function and the variable elasticity of substitution utility function. It is known that market equilibrium is efficient only for the special case when utility function has a constant elasticity of substitution, but ...
Added: December 4, 2014
Shapoval S., Гончаренко В. М., Пространственная экономика 2014 № 3 С. 12-25
The article deals with the theory of monopolistic competition under demand uncertainty. The authors consider the economy with labor immobility consisting of the high-tech sector with monopolistic competition and the standard sector with perfect competition. Preferences between sectors are specified by the Cobb – Douglas production function. It is assumed that companies make output
decisions under ...
Added: January 16, 2015
Osharin A., Verbus V. A., / EERC. Series "Labor markets and social policy". 2015. No. 15/03E.
The present paper extends the traditional Dixit and Stiglitz set-up by introducing consumers’ workers’ heterogeneity into a general equilibrium model of monopolistic competition. The model obtains a closed-form solution for a symmetric equilibrium and shows how the market outcome depends on the joint distribution of consumers’/workers’ taste and labor productivities. In contrast to the traditional ...
Added: March 8, 2016
Alexander Osharin, Advances in Economics and Business 2013 Vol. 1 No. 2 P. 145-149
The paper investigates distributional effects and market structure in a one-sector model of monopolistic competition with heterogeneous consumers. By using the CES utility function depending on consumer’s personal income the paper shows how the equilibrium prices, firm size and number of firms depend upon income distribution and intensity of competition. The proposed model extends the ...
Added: November 13, 2013
Burmistrova E., Lobanov S. G., American Scientific Journal 2018 Т. 18 № 1 С. 23-30
This note proves that the representation of the Allen elasticity of substitution obtained by Uzawa for linear homogeneous functions holds true for nonhomogeneous functions. It is shown that the criticism of the Allen-Uzawa elasticity of substitution in the works of Blackorby, Primont, Russell is based on an incorrect example. ...
Added: October 24, 2018
Bykadorov I., / Economics Education and Research Consortium. Series "EERC Working Paper Series". 2010. No. 10/03E.
In Russia the chain-stores gained a considerable market power. In the paper we combine a Dixit-Stiglitz industry with a
monopolistic retailer. The questions addressed are: Does the retailer always deteriorate welfare, prices and variety of goods?
Which market structure is worse: Nash or Stackelberg behavior? What should be the public policy in this area? ...
Added: November 17, 2013
Ошарин А.М., Аудит и финансовый анализ 2013 № 6 С. 154-160
The paper develops a one-sector model of monopolistic competition with heterogeneous consumers, which preferences depend upon their personal income. The model is used for the analysis of the mark-ups dependence on the inequality of consumers’ income distribution and average wage. The paper shows that mark-ups can ambiguously depend upon income inequality at fixed average income, ...
Added: November 14, 2013
Osharin A., Verbus V. A., / Высшая школа экономики. Series WP BRP "Economics/EC". 2016. No. WP BRP 131/EC/2016.
The paper considers a two-country trade model of monopolistic competition featuring the heterogeneity of consumer preferences both within and across countries. The incorporation of heterogeneity into a traditional monopolistic competition setting is achieved by assuming different elasticities of substitution in the CES utility function for different consumers. The proposed setup expands on the traditional model ...
Added: April 1, 2016
Kichko S., Sergey Kokovin, Evgeny Zhelobodko, Journal of International Economics 2014 No. 94 P. 129-142
We develop a two-factor, two-sector trade model of monopolistic competition with variable elasticity of sub- stitution. Firms' prots and sizes may increase or decrease with market integration depending on the degree of asymmetry between countries. The country in which capital is relatively abundant is a net exporter of the manu- factured good, although both rm ...
Added: June 19, 2014
Goncharenko V., Shapoval S., Компьютерные исследования и моделирование 2017 Т. 9 № 5 С. 825-836
В статье показано, что базовые свойства некоторых моделей монополистической конкуренции описываются с помощью семейств гипергеометрических функций. Результаты получены построением модели общего равновесия в многосекторной экономике, производящей дифференцированное благо в n высокотехнологичных секторах, в которых однопродуктовые фирмы конкурируют монополистически, используя одинаковые технологии. Однородный (традиционный) сектор характеризуется совершенной конкуренцией. Работники мотивированы найти работу в высо- котехнологичных секторах, ...
Added: January 11, 2018
Radionov S., Pospelov I. G., HSE Economic Journal 2015 Vol. 19 No. 3 P. 386-394
We consider standard monopolistic competition models in the spirit of Dixit
and Stiglitz or Melitz with aggregate consumer's preferences defined by two well known classes of utility functions – the implicitly defined Kimball utility function
and the variable elasticity of substitution utility function. These two classes gene ralize classical constant elasticity of substitution utility function and overcome its
lack of ...
Added: October 18, 2015