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The complex interactions between economic growth and market concentration in a model of structural change
journal contribution
posted on 2023-06-09, 02:00 authored by Tommaso CiarliTommaso Ciarli, Marco ValenteWe study the relation between variety, market concentration, and economic growth, along different phases of economic development which entail a number of changes to the structure of production and consumption in the economy. We focus on three aspects of structural change, which are connected and are correlated to variety, market concentration, and economic growth: (i) product quality; (ii) firms' mark-ups; and (iii) imitation of consumer preferences for price and quality. We model the interactions among several aspects of structural change such as firm size and hierarchical structure, innovation in capital vintages, the emergence of social classes, income distribution, and consumer preferences across and within classes. We find that market concentration has a significant and positive impact on economic growth only in the presence of sufficiently large demand. The strongest effects emerge in the presence of a more skewed firm size distribution and firms producing higher priced and higher quality goods. We find also that this effect is influenced strongly by different aspects of structural change. Changes in the behaviour (or income) of the less wealthy income classes is crucial as is investment in new capital vintages, and the emergence of diverse income classes with heterogeneous consumption preferences. In contrast, we find that supply side product variety, cœteris paribus, has no significant effect on growth.
Funding
ISIGrowth: Innovation-fuelled, Sustainable, Inclusive Growth; G1610; EUROPEAN UNION; 649186
History
Publication status
- Published
File Version
- Accepted version
Journal
Structural Change and Economic DynamicsISSN
0954-349XPublisher
ElsevierExternal DOI
Volume
38Page range
38-54Department affiliated with
- SPRU - Science Policy Research Unit Publications
Full text available
- Yes
Peer reviewed?
- Yes