1. Raspredelenie predprinimatel'skih sposobnostej i migracija : struktura zanjatosti, neravenstvo dohodov i blagosostojanieD. A. Pokrovskij, Alexander Shapoval, 2015, original scientific article Abstract: The authors define a general equilibrium model with heterogeneous
individuals who are endowed with identical preferences, given by the utility function with constant elasticity of substitution (CES), and with heterogeneous entrepreneurial skills. We find that scale effects linked to migration can be analyzed within the framework of the constructed model because the migration changes the market size together with a market structure. A population growth due to immigration of low-qualified individuals ambiguously affects the share of reciprocal to entrepreneurial
and the inequality in the economy. If the distribution of the inverse entrepreneurial skills has an increasing (decreasing, constant) elasticity, then decreases (increases, and does not change) and the Gini coefficient increases (decreases and does not change).
Keywords: monopolistic competition, heterogeneous consumers, entrepreneurship, migration, income inequality, welfare
Published in RUNG: 10.06.2021; Views: 1766; Downloads: 0
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4. Industry equilibrium and welfare in monopolistic competition under uncertaintyAlexander Shapoval, V. M. Goncharenko, 2020, original scientific article Abstract: This paper offers a new theory that describes the influence of uncertainty on economic fundamentals. This theory posits that uncertainty can improve social welfare. We argue that in an economy, where spending of the customers for the differentiated good correlates with larger substitutability of its varieties, the equilibrium output decreases and the prices increase when uncertainty appears. Alternatively, if such spending and substitutability anti-correlate, the predictions for the price and output changes are reversed. The arguments are based on general equilibrium modeling with the monopolistic competition of firms which produce varieties of the differentiated good under limited information regarding the consumer demand. The impact of uncertainty on the equilibrium is assessed by using the relationship between the weighted elasticity of substitution between varieties, the elasticity of the consumer utility, and the income share spent on the differentiated good.
Keywords: monopolistic competition, uncertain demand, general utility, consumer welfare
Published in RUNG: 22.03.2021; Views: 1967; Downloads: 0
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