“The ball is round, the game lasts 90 minutes, everything else is pure theory”

2020 ◽  
Vol 22 (1) ◽  
pp. 27-74
Author(s):  
Peter-J. Jost

We model a soccer match between two heterogeneous teams as a two-stage contest where each team chooses its attacking and defending effort for each half of the match. We characterize the optimal teams’ efforts as well as the optimal effort allocation between offense and defense. In contrast to the theoretical literature on soccer we show, for example, that the leading team may preempt its competitor in the first half. Our analysis also sheds new light on empirical studies that investigate the change in winning points on the number of ties by showing that this effect depends crucially on teams’ heterogeneity.

2020 ◽  
Vol 9 (5) ◽  
pp. 94
Author(s):  
Khalid Ayad ◽  
Khaoula Dobli Bennani ◽  
Mostafa Elhachloufi

The concept of governance has become ubiquitous since it is recognized as an important tool for improving quality in all aspects of higher education.In Morocco, few scientific articles have dealt with the subject of university governance. Therefore, we will present a general review of the evolution of governance through laws and reforms established by Moroccan Governments from 1975 to 2019. The purpose of the study is to detect the extent of the presence of university governance principles in these reforms.This study enriches the theoretical literature on the crisis of Moroccan university and opens the way to new empirical studies to better understand the perception of university governance concept in the Moroccan context and to improve the quality of higher education and subsequently the economic development of the country.The findings of this study show an increasing evolution of the presence of university governance principles in reforms and higher education laws.


2016 ◽  
Vol 65 (1) ◽  
pp. 38-53 ◽  
Author(s):  
Wangshu Liu ◽  
Shulong Liu ◽  
Qing Gu ◽  
Jiaqiang Chen ◽  
Xiang Chen ◽  
...  

2019 ◽  
Author(s):  
Philip Agnew

AbstractA pathogen’s virulence is a key parameter in the mathematical models on which most epidemiological theory is based. In these models virulence generally has a very specific definition where it is the increased per capita rate of mortality of infected hosts due to infection. Empirical studies involving the experimental infection of hosts often estimate virulence with the aim of comparing these estimates to values or patterns predicted in the theoretical literature. However most empirical studies do not estimate virulence as it is defined in the theoretical literature, thus potentially confounding comparisons between the two approaches. Here the analysis of relative survival is applied to the type of data routinely generated in empirical studies to estimate virulence as it is defined in the theoretical literature. The theoretical grounds for approach are outlined, followed by worked examples estimating the virulence of different pathogens with data from published studies. Code allowing virulence to be estimated by maximum likelihood with R is provided.


Author(s):  
Subhasish M. Chowdhury

Conflicts are a ubiquitous part of our life. One of the main reasons behind the initiation and escalation of conflict is the identity, or the sense of self, of the engaged parties. It is hence not surprising that there is a consistent area of academic literature that focuses on identity, conflict, and their interaction. This area models conflicts as contests and focuses on the theoretical, experimental, and empirical literature from economics, political science, and psychology. The theoretical literature investigates the behavioral aspects—such as preference and beliefs—to explain the reasons for and the effects of identity on human behavior. The theoretical literature also analyzes issues such as identity-dependent externality, endogenous choice of joining a group, and so on. The applied literature consists of laboratory and field experiments as well as empirical studies from the field. The experimental studies find that the salience of an identity can increase conflict in a field setting. Laboratory experiments show that whereas real identity indeed increases conflict, a mere classification does not do so. It is also observed that priming a majority–minority identity affects the conflict behavior of the majority, but not of the minority. Further investigations explain these results in terms of parochial altruism. The empirical literature in this area focuses on the various measures of identity, identity distribution, and other economic variables on conflict behavior. Religious polarization can explain conflict behavior better than linguistic differences. Moreover, polarization is a more significant determinants of conflict when the winners of the conflict enjoy a public good reward; but fractionalization is a better determinant when the winners enjoy a private good reward. As a whole, this area of literature is still emerging, and the theoretical literature can be extended to various avenues such as sabotage, affirmative action, intra-group conflict, and endogenous group formation. For empirical and experimental research, exploring new conflict resolution mechanisms, endogeneity between identity and conflict, and evaluating biological mechanisms for identity-related conflict will be of interest.


2013 ◽  
Vol 51 (1) ◽  
pp. 162-172 ◽  
Author(s):  
Daniel S Hamermesh

Presenting data on all full-length articles in the three top general economics journals for one year in each decade 1960s–2010s, I analyze changes in patterns of coauthorship, age structure and methodology, and their possible causes. The distribution of number of authors has shifted steadily rightward. In the last two decades, the fraction of older authors has almost quadrupled. Top journals are publishing many fewer papers that represent pure theory, regardless of subfield, somewhat less empirical work based on publicly available data sets, and many more empirical studies based on data collected by the author(s) or on laboratory or field experiments. (JEL A14)


2013 ◽  
Vol 52 (1) ◽  
pp. 34-38
Author(s):  
Audronė Jakaitienė ◽  
Vaidutis Kučinskas

The studies about the homogeneity of the Lithuanian population according to ethnolinguistic groups were carried out in various areas – psychological, anthropological, genetic, etc. From diverse research results, we know that the ethnic Lithuanian population is not homogeneous. For the analysis of the Lithuanian population according to ethnolinguistic groups, one should first know the population structure according to the mentioned groups so that a two-stage stratified random sample could be drawn. As to author’s knowledge, there are no publications about the structure of the Lithuanian population by ethnolinguistic groups. Statistics Lithuania does not produce such information. In the paper, the expert estimation of the Lithuanian population structure by ethnolinguistic groups is provided, based on annual population figures at the beginning of the year (2001–2013) from Statistics Lithuania. According to final 2001 and preliminary 2011 population census data, it was calculated that the ethnic Lithuanian population consists of 24.5 per cent of žemaičiai and 75.5 per cent of aukštaičiai. The latter is rather the estimation of the Lithuanian population structure living in the ethnolinguistic areas than the structure of the Lithuanian population by ethnolinguistic groups. Therefore, the results obtained should be used as an approximate estimate of the Lithuanian population structure by ethnolinguistic groups in empirical studies.


2016 ◽  
Vol 23 (1) ◽  
pp. 214-222 ◽  
Author(s):  
Chiang-Ming Chen ◽  
Yu-Chen Lin ◽  
Ho-Wen Yang

Although the theoretical literature on the effect of advertising is well developed, few empirical studies quantify the importance of advertising on the market share instability of hotels. This article investigates the influence of advertising on market share instability using Taiwanese international tourist hotel operation data. Telser argues that advertising reduces a leading firm’s market share instability by creating market power and entry barriers. This study provides empirical evidence for the theoretical inverse relationship between advertising intensity and market share instability among leading firms in the hotel industry. It identifies advertising as an important factor influencing the market share instability of hotels. Moreover, advertising tends to increase the market share instability of leading firms for different quantiles of the market share instability. The results lend moderate support to the validity of the hypothesis in the Telser model.


2012 ◽  
Vol 13 (1) ◽  
pp. 37-58 ◽  
Author(s):  
BAOGANG HE ◽  
DAVID HUNDT

AbstractThe failure to reconcile views of the past and to address historical injustice has damaged inter-state relations in Northeast Asia. Joint committees, dialogues, and the participation of civil society have been used to address historical issues, but scholars in the disciplines of international relations and area studies have largely ignored these dialogues and deliberative forums. At the same time, there is an emergent theoretical literature on how deliberative democracy can address ethnic conflicts and historical injustice. There is a serious disconnect or distance between the theoretical literature on the resolution of conflicts via deliberation on the one hand, and empirical studies of deliberative approach in East Asia on the other. This article aims to address this shortcoming in the study of the politics of historical dispute in Northeast Asia by proposing a deliberative approach to history disputes and highlighting the achievements, limits, and dynamics of deliberation. Through mapping and comparative testing, we confirm that deliberation offers some potential for a departure from nationalist mentalities and a shift towards a consciousness of regional history in Northeast Asia. Our empirical test of the utility of the deliberative approach suggests that a new model for addressing regional disputes may be emerging.


2013 ◽  
Vol 2 (2) ◽  
pp. 79-96
Author(s):  
Martin Kukuk ◽  
Stefan Winter

Empirical studies of horse race betting in the US, the UK, Australia, and Germany have empirically established the so called favorite-longshot bias. It was found that bets on longshots on average lose much more than bets on favorites. The theoretical literature on wagering markets has offered a variety of explanations for that bias. One of the most prominent is the assumption of a homogeneous bettor population with a preference for risk. However, the risk-love explanation has also been severely challenged. We add to this challenge by proposing a different explanation of the favorite-longshot bias. We show that if populations of bettors have only noisy estimates of horses’ true winning probabilities, a favorite-longshot bias will be the market equilibrium outcome even with risk neutral bettors and even if the median estimate is correct. We provide evidence on four different types of bets broadly consistent with the noisy estimates assumption but not with the risk-love explanation.


2018 ◽  
Vol 35 (2) ◽  
pp. 244-272
Author(s):  
Tom W. Miller

PurposeThe purpose of this paper is to use fundamental models incorporating structural relationships within the firm in a terminal value model for the second stage of a two-stage valuation model utilized to estimate the value of a company.Design/methodology/approachThe innovation is that growth options are identified within the structural relationships and a model capturing the value of the optionality is incorporated in the second stage of the two-stage valuation model.FindingsSignificant outcomes are that terminal value is shown to be a large portion of a company’s total value and the price behavior for initial public offerings produced by the model is consistent with the result of empirical studies.Originality/valueThis paper explicitly incorporates growth options in the second stage of a two-stage valuation model for the firm.


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