scholarly journals Estimating the degree of market power in the vegetable market in Japan

2021 ◽  
pp. 1-25
Author(s):  
Yuki Sano ◽  
Takeshi Sato ◽  
Kentaro Kawasaki ◽  
Nobuhiro Suzuki ◽  
Harry M. Kaiser
Keyword(s):  
Industrial Organization ◽  
Market Structure ◽  
Market Power ◽  
Economic Welfare ◽  
Wholesale Market ◽  
Market System ◽  
Oligopoly Model ◽  
Potential Market ◽  
Market Benefits

Abstract To adequately capture the market structure of vegetables in Japan, it is necessary to develop an oligopolistic model due to the potential market power of producers vs. retailers. We first estimate the market power between producers and retailers by extending the bilateral oligopoly model. Next, we evaluate the role of the wholesale market and its effect on economic welfare. Our results indicate that the wholesale market benefits both producers and consumers through a reduction in retail margins. This study contributes to the industrial organization literature by developing a bilateral oligopoly model and empirically measuring the wholesale market system in Japan.

The Effects of Chains on the Measurement of Competition in the Nursing Home Industry

2017 ◽  
Vol 76 (3) ◽  
pp. 315-336 ◽  
Author(s):  
Richard A. Hirth ◽  
Qing Zheng ◽  
David C. Grabowski ◽  
David G. Stevenson ◽  
Orna Intrator ◽  
...  
Keyword(s):  
United States ◽  
Nursing Home ◽  
Nursing Homes ◽  
Market Structure ◽  
Market Power ◽  
The United States ◽  
Local Market ◽  
Common Ownership ◽  
Fixed Radius

Consistently accounting for more than 50% of the nursing homes in the United States, corporate chains have played an important role in the industry for several decades. However, few studies have explicitly considered the role of chains in measuring competition in nursing home markets. In this study, we use a newly developed database tracking common ownership over a period of nearly two decades to compare chain-adjusted and unadjusted measures of competition at the county and 25 km fixed-radius levels and explore how the differences would affect the assessment of local market structure. On average, the chain-adjusted Herfindahl–Hirschman Indexes (HHIs) are about 0.02 higher than the unadjusted HHIs. Each year, about 20% to 22% of the counties would appear more concentrated when recalculating HHIs accounting for common ownership. Evidence suggests that nursing home chains tend to focus more on expanding access to new markets within a state than to increasing market power within a smaller local market.

Business-groups in Russian industries

2004 ◽  
pp. 121-134 ◽  
Author(s):  
S. Avdasheva
Keyword(s):  
Industrial Organization ◽  
Economic System ◽  
Institutional Economics ◽  
Business Groups ◽  
Control Rights ◽  
Organization And Management ◽  
Russian Economy ◽  
Main Determinants ◽  
Soviet Economic System

The chapter of “Institutional Economics” textbook is devoted to the development of business-groups as a specific feature of industrial organization in the Russian economy. The main determinants of forming and functioning of business-groups such as allocation of property rights in Soviet enterprises, networks of directors and executive authorities in the Soviet economic system as well as import of new institutes and inefficient state enforcement are in the center of analysis. Origins, structure, organization and management within the groups and the role of shareholding and informal control rights are considered.

The Effect of Bank Market Power on Economic Growth in Africa: The Role of Institution

2018 ◽  
Author(s):  
Anthony Idun ◽  
Anthony Q. Aboagye ◽  
Godfred Alufar Bokpin
Keyword(s):  
Economic Growth ◽  
Market Power

scholarly journals Competition in Power Generation: Ex-ante Analysis of Indonesia’s Electricity Market

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6741
Author(s):  
Dzikri Firmansyah Hakam ◽  
Sudarso Kaderi Wiyono ◽  
Nanang Hariyanto
Keyword(s):  
Power System ◽  
Market Structure ◽  
Market Power ◽  
Electricity Markets ◽  
Electricity Market ◽  
Regulatory Reform ◽  
Optimal Number ◽  
Load Flow ◽  
Utility Company ◽  
Competitive Electricity Markets

This research optimises the mix and structure of Generation Companies (GenCos) in the Sumatra power system, Indonesia. Market power, indicating the ability to raise prices profitably above the competitive level, tends to be a significant problem in the aftermath of electricity market restructuring. In the process of regulatory reform and the development of competitive electricity markets, it is desirable and practical to establish an efficient number of competitor GenCos. Simulations of a power system account for multi-plant mergers of GenCos subject to a regulatory measure of the Residual Supply Index and the influence of direct current load flow and the topology of the system. This study simulates the Sumatra power system in order to determine the following: optimal market structure, efficient GenCo generation mix, and the optimal number of competitive GenCos. Further, this study seeks to empirically optimise the electricity generation mix and electricity market structure of the Sumatra power system using DC load flow optimisation, market power index, and multi-plant monopoly analysis. The simulations include generation and transmission constraints to represent network constraints. This research is the first to analyse the Sumatra power system using imperfect (Cournot) competition modelling. Furthermore, this study is the first kind to optimise the mix and structure of the Sumatra generation power market. The guidelines and methodology in this research can be implemented in other countries characterised by a monopoly electricity utility company.

Measuring Market Power in Bilateral Oligopoly: The Wholesale Market for Beef

2000 ◽  
Vol 66 (3) ◽  
pp. 526-547
Author(s):  
John R. Schroeter ◽  
Azzeddine M. Azzam ◽  
Mingxia Zhang
Keyword(s):  
Market Power ◽  
Wholesale Market

scholarly journals Scanner Data: New Opportunities for Demand and Competitive Strategy Analysis

1994 ◽  
Vol 23 (2) ◽  
pp. 125-139 ◽  
Author(s):  
Ronald W. Cotterill
Keyword(s):  
Market Power ◽  
Price Competition ◽  
Tacit Collusion ◽  
Scanner Data ◽  
Strategy Analysis ◽  
Price Response ◽  
Oligopoly Model ◽  
Sufficient Detail ◽  
Bertrand Price Competition ◽  
Reaction Equations

This paper reviews prior research by agricultural economists on the demand for food products using scanner data. Thereafter, a differentiated product's oligopoly model with Bertrand price competition is developed and used to specify brand level demand and oligopoly price reaction equations. The model has sufficient detail to estimate brand level price elasticities and price response elasticities which in turn can be used to estimate three indices of market power. The first index estimated is the familiar Rothschild Index. The paper develops estimates two new indexes, the observed index and the Chamberlin quotient for tacit collusion. It concludes with comments on how the proposed method for the measurement of market power in a differentiated oligopoly can be improved.

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