Forensic Application of Econometric Evidence: Detecting and Tackling Tacit Coordination in Oligopolistic Markets

2012 ◽  
Author(s):  
Patrick Andreoli Versbach ◽  
Jens-Uwe Franck
2015 ◽  
Vol 18 (3) ◽  
pp. 395-409
Author(s):  
Mike Holland ◽  
Jannie Rossouw ◽  
Jessica Staples

The Competition Amendment Act introduced section 10A, which provides the Competition Commission with the powers to investigate complex monopoly conduct in a market and allows the Competition Tribunal, under certain conditions, to prohibit such behaviour. Although more than five years have elapsed since the Competition Amendment Act was promulgated, this provision has yet to come into force. However, when it eventually does so, it will mark a significant change in South African competition law, as it seeks to regulate firms’ consciously parallel conduct. This is coordinated conduct that occurs without communication or agreement, but results in the prevention or substantial lessening of competition. Examples of horizontal tacit coordination practices include price leadership and facilitating practices, such as information exchanges and price signaling. The successful implementation of the amendment poses problems for the competition authorities in assessing the competitive effects of complex monopoly conduct and in providing effective remedies. Oligopoly markets result in mutual interdependent decision-making by firms, which can lead to market outcomes similar to explicit collusion. However, a further and little noticed issue is that firms in oligopolistic markets have opportunities to use focal points to determine coordinated strategies. This paper explores the nature and role of focal point pricing, which can lead to prices that are above competitive levels. The South African banking industry is used as an example. We find that focal point pricing is difficult to control, making the successful implementation of section 10A even more problematic. Moreover, the proposed amendment provides scope for the imposition of structural remedies by the Competition Tribunal, a function that the Competition Tribunal is ill-suited to perform.


2011 ◽  
Author(s):  
Christopher R. Chartier ◽  
Matt E. Groebe ◽  
Susanne Abele

2016 ◽  
Vol 14 (3) ◽  
Author(s):  
Frank Maier-Rigaud ◽  
Ulrich Schwalbe ◽  
Felix Forster

AbstractThis article focusses on the non-coordinated effects of minority shareholdings in oligopolistic markets. It is demonstrated that minority shareholdings even when they fall below the usual thresholds can lead to a significant impediment of effective competition (SIEC) on a purely non-coordinated basis. This is particularly likely in a market with differentiated products, when a firm partially acquires shareholdings in its closest competitor and when the next best alternative products are only weak substitutes.


Author(s):  
Magaji Garba Taura ◽  
Lawan Hassan Adamu ◽  
Abdullahi Yusuf Asuku ◽  
Kabiru Bilkisu Umar ◽  
Musa Abubakar

Abstract Background Sex determination is one of the leading criterion in identification and verification of an individual. However, the potential roles of differences in adjacent fingerprint white line count (FWLC) in sex inference are not well elucidated in the literature especially among Hausa population. The study was conducted to determine sexual dimorphism and predict sex using adjacent digit FWLC difference (adj. DFWLCD) among Hausa population of Kano state, Nigeria. Methods The study population involved 300 participants. FWLC was determined from a plain fingerprint captured using live scanner. The formula for adj. DFWLCD of thumb and fifth digit is dR15 for right hand. The same applied for possible combination in cephalocaudal direction. Mann-Whitney and t tests were used for comparison of variables between sexes. Binary logistic regression analyses were employed for determination of sex. Results We observed a significantly larger adj. DFWLCD in males compared with females in most of the digit combination. A significant sexual dimorphism was observed in most of the adj. DFWLCD involving ring digit in both right (dR14, dR24, and dR34) and left (dL14, dL24, and dL34). The best discrimination was observed in adjacent FWLC difference of second and fourth digits in both right and left digits (dR24 and dL24). This was further supported by stepwise logistic regression analyses. Conclusion The adj. DFWLCD exhibits sexual dimorphism. The best prediction potentials were found to be dR24 and dL24 for right and left hands respectively.


Author(s):  
Ke Zhang ◽  
Feng Song ◽  
Shuangshuang Wang ◽  
Xiaowen Wei ◽  
Haoyu Gu ◽  
...  
Keyword(s):  

Author(s):  
Lei Shang ◽  
Guangshu Ding ◽  
Xiaoting Mo ◽  
Jing Sun ◽  
Hui Sun ◽  
...  
Keyword(s):  

2020 ◽  
Vol 13 (9) ◽  
pp. 218
Author(s):  
Marek Gruszczyński

This paper discusses questions of the gender diversity of corporate boards vis-à-vis firm performance. Typically, researchers have asked if a female presence is associated with improved performance and more transparent governance. The paper’s first part reports on several econometric attempts in the quest to prove the existence of such an association. The primary outcome is that the results vary over geographical, cultural, and time settings. The study presented in the second part examines European firms’ annual reports from 2015. Binomial models, multiple regression, and quantile regression are applied resulting in the finding that female presence on a board is not significantly related to firm performance for this sample. Together with the picture that emerged from the paper’s first part, this result leads to the possibility that the search for an association between women on boards and company performance is not fundamental. Nevertheless, modern business societies worldwide may need to boost the female presence on managerial bodies. Current econometric evidence indicates that this is not harmful to corporate results.


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