This thesis examines the corporate merger process as a bargaining game, under the assumption that the two companies are essentially in conflict over the single issue of the price to be offered by the acquirer to the target. The first part of the thesis deals with the construction and testing of analytical game-theoretic models to explain the proportion of the synergy gains accruing to the target company under different assumptions about the players' a priori knowledge. Assuming full certainty amongst the players about the pre- and post-merger values of the companies, the distribution of gains between target and acquiring companies that would be consistent with the Nash-Kalai axioms is determined in principle. The resulting model depends on the players' utility functions, and is parameterised by the relative bargaining strength of the players and their risk aversion coefficients. An operational version of the model is fitted to empirical data from a set of 24 recent mergers of companies quoted on the Johannesburg Stock Exchange. The model is shown to have good predictive power within this data set. Under the more realistic assumption of shared uncertainty amongst the two players about the post-merger value of the combined company, a Nash-Kalai bargaining model incorporating this uncertainty is developed. This model is an improvement over those with complete certainty in that it offers improved model fit in terms of predicting the total amount paid by an acquirer, and is able to dichotomise this payment into a cash amount and a share transfer amount. The theoretical model produced some results of practical value. Firstly, a cash-only offer is never optimal. Conditions under which shares only should be tendered are identified. Secondly, the optimal offer amount depends on the form of payment and the level of perceived risk. In a share-only offer the amount is constant regardless of risk, whilst if cash is included an increase in risk will imply a decrease in the optimal amount of cash offered. The Nash-Kalai model incorporating shared uncertainty is empirically tested on the same data set used previously. This allows a comparison with earlier results and estimation of the extent of the uncertainty. An extension of this model is proposed, incorporating an alternative form of the utility functions. The second part of the thesis makes use of ideas from negotiation analysis to construct a dynamic model of the complex processes involved in negotiation. It offers prescriptive advice to one of the players on likely Pareto-optimal bargaining strategies, given a description of the strategy the other party is likely to employ. The model describes the negotiating environment and each player's negotiating strategy in terms of a few simple parameters. The model is implemented via a Monte Carlo simulation procedure, which produces expected gains to each player and average transaction values for a wide range of each of the players' strategies. The resulting two-person game bimatrix is analysed to offer general insights into negotiated outcomes, and using conventional game-theoretic and Bayesian approaches to identify "optimal" strategies for each of the players. It is shown that for the purposes of identifying optimal negotiating strategies, the players strategies (described by parameters which are continuous in nature) can be adequately approximated by a sparse grid of discrete strategies, providing that these discrete strategies are chosen so as to achieve an even spread across the set of continuous strategies. A sensitivity analysis on the contextual parameters shows that the optimal strategy pair is very robust to changes to the negotiating environment, and any such changes that have the players start negotiating from positions more removed from one another is more detrimental to the target. A conceptual decision support system which uses the model and simulated results as key components is proposed and outlined.

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The Dirty Faces game requires players to perform iterative reasoning in order to arrive at equilibrium play. The game is dominance solvable with a unique equilibrium when it is correctly specified. The particular payoff structure has significant implication on whether the reasoning process leads to equilibrium play. This paper illustrates that the traditional specification - as used by Weber (2001) - leads to multiple equilibria and the game loses its dominance solvability. We modify the payoff structure and restore uniqueness. The resulting game, which is dominance solvable, is implemented in an experiment to test the depth of iterative reasoning in humans. Our data analysis suggests that some deviation from equilibrium play is due to limited depth of iteration. Additionally, we find evidence that the lack of confidence in other players’ iterative abilities also induces deviations from equilibrium play. / Thesis (M.Ec.) -- School of Economics, 2007

The Dirty Faces game requires players to perform iterative reasoning in order to arrive at equilibrium play. The game is dominance solvable with a unique equilibrium when it is correctly specified. The particular payoff structure has significant implication on whether the reasoning process leads to equilibrium play. This paper illustrates that the traditional specification - as used by Weber (2001) - leads to multiple equilibria and the game loses its dominance solvability. We modify the payoff structure and restore uniqueness. The resulting game, which is dominance solvable, is implemented in an experiment to test the depth of iterative reasoning in humans. Our data analysis suggests that some deviation from equilibrium play is due to limited depth of iteration. Additionally, we find evidence that the lack of confidence in other players’ iterative abilities also induces deviations from equilibrium play. / Thesis (M.Ec.) -- School of Economics, 2007

This dissertation presents a new approach to one of the classic problems in economics: firms' training and development (T&D hereafter) behavior under externality. Its objective is threefold. The first objective is to identify the conditions under which T&D externalities are present in the labor market; the second is to examine firms' strategic T&D behavior under T&D externality; the third is to provide a possible institutional remedy for the less than socially optimal level of firms' T&D investments that T&D externalities generate. The most important findings of this research are that the labor market in general cannot fully internalize T&D externalities in a world of imperfect information. In the presence of T&D externalities, firms' training investments are socially sub-optimal. In a dynamic game environment, one firm's T&D decision depends on the magnitude of T&D externalities, as well as on the level of training provided by the other firms. Under certain conditions, a firm may invest zero in T&D, pirating skilled workers from the other firm. One firm's T&D investment is inversely related to its own discount rate, but positively related to its competitors' discount rates. In addition, a T&D externality reduces firms' T&D incentive not only at the firm that generates the T&D externality, but also at the firm that receives the T&D externality. More importantly, it is shown that market structure per se affects firms' T&D investment behavior. The level of firms' T&D investments is inversely related to the competitiveness of the output market. In terms of social optimality of T&D, monopoly market organization is superior to perfect competition. The results are hence consistent with Schumpeter's (1943) dynamic efficiency arguments. Finally, it is shown that joint T&D programs can serve as a possible remedy to correct T&D externalities, and joint T&D programs, as impure public goods, can be provided efficiently on a voluntary basis under certain conditions. A game theoretic model of the public goods provision with positive Nash equilibria is presented and experimental evidence which supports the hypothesis is provided.

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