The Competitive Effects of Mergers with Cournot Competition

2021 ◽  
Author(s):  
Markus Reisinger ◽  
Hans Zenger
Keyword(s):  
Cournot Competition ◽  
Competitive Effects

Inter‐row Competitive Effects among Four Cotton Cultivars 1

Crop Science ◽  
1975 ◽  
Vol 15 (4) ◽  
pp. 479-482 ◽  
Author(s):  
Cesar A. Moran‐Val ◽  
P. A. Miller
Keyword(s):  
Competitive Effects

scholarly journals COMPETITIVE EFFECTS OF THE ALIEN INVASIVE CENTAUREA SOLSTITIALISL. ON TWO CHILEAN BACCHARIS SPECIES AT DIFFERENT LIFE-CYCLE STAGES

2009 ◽  
Vol 66 (1) ◽  
Author(s):  
Susana Gómez-González ◽  
Lohengrin A Cavieres ◽  
Patricio Torres ◽  
Cristian Torres-Díaz
Keyword(s):  
Life Cycle ◽  
Competitive Effects ◽  
Life Cycle Stages

On the Equilibrium Uniqueness in Cournot Competition with Demand Uncertainty

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Stefanos Leonardos ◽  
Costis Melolidakis
Keyword(s):  
Failure Rate ◽  
Demand Uncertainty ◽  
Sufficient Conditions ◽  
Cournot Competition ◽  
Uncertain Demand ◽  
Cournot Model ◽  
Equilibrium Uniqueness ◽  
Residual Demand ◽  
Uniqueness Of Equilibrium ◽  
Additional Assumptions

AbstractWe revisit the linear Cournot model with uncertain demand that is studied in Lagerlöf (2006. “Equilibrium Uniqueness in a Cournot Model with Demand Uncertainty.” The B.E. Journal of Theoretical Economics 6, no. 1. (Topics), Article 19: 1–6.) and provide sufficient conditions for equilibrium uniqueness that complement the existing results. We show that if the distribution of the demand intercept has the decreasing mean residual demand (DMRD) or the increasing generalized failure rate (IGFR) property, then uniqueness of equilibrium is guaranteed. The DMRD condition implies log-concavity of the expected profits per unit of output without additional assumptions on the existence or the shape of the density of the demand intercept and, hence, answers in the affirmative the conjecture of Lagerlöf (2006. “Equilibrium Uniqueness in a Cournot Model with Demand Uncertainty.” The B.E. Journal of Theoretical Economics 6, no. 1. (Topics), Article 19: 1–6.) that such conditions may not be necessary.

scholarly journals Mergers with Differentiated Products: Where Do We Stand?

2021 ◽  
Vol 58 (1) ◽  
pp. 179-212
Author(s):  
Tommaso Valletti ◽  
Hans Zenger
Keyword(s):  
Economic Analysis ◽  
Differentiated Products ◽  
Horizontal Merger ◽  
10Th Anniversary ◽  
Merger Guidelines ◽  
Competitive Effects ◽  
Unilateral Effects ◽  
Market Shares ◽  
Differentiated Product Markets

AbstractOn the occasion of the 10th anniversary of the 2010 U.S. Horizontal Merger Guidelines, this article provides an overview of the state of economic analysis of unilateral effects in mergers with differentiated products. Drawing on our experience with merger enforcement in Europe, we discuss both static and dynamic competition, with a special emphasis on the calibration of competitive effects. We also discuss the role of market shares and structural presumptions in differentiated product markets.

scholarly journals Recent Studies on Common Ownership, Firm Behavior, and Market Outcomes

2021 ◽  
Vol 66 (1) ◽  
pp. 12-38
Author(s):  
Martin C. Schmalz
Keyword(s):  
Firm Behavior ◽  
Fast Rate ◽  
Empirical Work ◽  
Estimation Methods ◽  
Reduced Form ◽  
Market Outcomes ◽  
Competitive Effects ◽  
The Past ◽  
Common Ownership ◽  
Meaningful Research

The literature on competitive effects of common ownership has grown at a fast rate in the past two years. Anticompetitive effects have been confirmed with alternative reduced-form and structural estimation methods, in different industries, geographies, and jurisdictions. Multiple independent studies have disproven early critiques of the literature. Other papers document the heterogeneity of common ownership effects on competition across markets and industries. Important advances were made on the study of the economic mechanisms and governance channels that implement anti-competitive incentives. New theory refines the interpretation of existing empirical work. Access to high-quality ownership and product-market data remains a bottleneck for meaningful research in the area.

Scale-dependent merging of baroclinic vortices

1994 ◽  
Vol 264 ◽  
pp. 81-106 ◽  
Author(s):  
J. Verron ◽  
S. Valcke
Keyword(s):  
Numerical Simulations ◽  
Critical Point ◽  
Lower Layer ◽  
Interaction Mechanism ◽  
Competitive Effects ◽  
Different Types ◽  
Shape Effects ◽  
Baroclinic Vortices ◽  
The Relationship ◽  
Stratified Model

The influence of stratification on the merging of like-sign vortices of equal intensity and shape is investigated by numerical simulations in a quasi-geostrophic, two-layer stratified model. Two different types of vortices are considered: vortices defined as circular patches of uniform potential vorticity in the upper layer but no PV anomaly in the lower layer (referred to as PVI vortices), and vortices defined as circular patches of uniform relative vorticity in the upper layer but no motion in the lower layer (referred to as RVI vortices). In particular, it is found that, in the RVI case, the merging behaviour depends strongly on the magnitude of the stratification (i.e. the ratio of internal Rossby radius and vortex radius). The critical point here appears to be whether or not the initial eddies have a deep flow signature in terms of PV.The specific phenomenon of scale-dependent merging observed is interpreted in terms of the competitive effects of hetonic interaction and vortex shape. In the case of weaker stratification, the baroclinic structure of the eddies can be seen as dominated by a mechanism of hetonic interaction in which bottom flow appears to counteract the tendency of surface eddies to merge. In the case of larger stratification, the eddy interaction mechanism is shown to be barotropically dominated, although interface deformation still determines the actual eddy vorticity profile during the initialization stage. Repulsion (hetonic) effect therefore oppose attraction (barotropic shape) effects in a competitive process dependent on the relationship between the original eddy lengthscale and the first internal Rossby radius.A concluding discussion considers the implications of such analysis for real situations, in the ocean or in the laboratory.

Predicting the competitive effects of weed and crop density on weed biomass, weed seed production and crop yield in wheat

Weed Research ◽  
2006 ◽  
Vol 35 (4) ◽  
pp. 265-278 ◽  
Author(s):  
B. J. WILSON ◽  
K. J. WRIGHT ◽  
P. BRAIN ◽  
M. CLEMENTS ◽  
E. STEPHENS
Keyword(s):  
Seed Production ◽  
Crop Yield ◽  
Weed Seed ◽  
Weed Biomass ◽  
Competitive Effects ◽  
Crop Density

scholarly journals Cournot Competition and Hit-and-Run Entry and Exit in a Teaching Experiment

2006 ◽  
Vol 37 (4) ◽  
pp. 418-430 ◽  
Author(s):  
Simon Gächter ◽  
Christian Thöni ◽  
Jean-Robert Tyran
Keyword(s):  
Teaching Experiment ◽  
Cournot Competition ◽  
Entry And Exit ◽  
Hit And Run
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