While previous studies did not consider that buyback contracts in collusive research of supply chains and the contract particularly strengthens collusion between retailers chain, we address a new question: What is effect different retailer patterns information sharing mechanisms on benefits each member with contracts? To answer this question, develop four two-echelon chain models. The model con...

This article presents the first experiment exploring impact of debarments – exclusion colluding bidders on collusion in procurement auctions. We find that reduce and bids relative to a market with no sanction. The deterrent effect increases length punishment. However, shorter efficiency increase non-debarred bidders. suggests are too lenient may trigger tacit among who remain market, thereby fa...

This paper considers a two-period model in which two labour-managed firms can use inventory investment as a strategic device. In the first period, each firm simultaneously and independently chooses how much it sells in the current market and the level of inventory it holds for the second-period market. The paper shows the reaction curves in the model with inventories. The paper finds that inven...

The English auction is susceptible to tacit collusion when post-auction inter-bidder resale is allowed. We show this by constructing equilibria where, with positive probability, one bidder wins the auction without any competition and divides the spoils by optimally reselling the good to the other bidders. These equilibria interim Pareto dominate (among bidders) the standard value-bidding equili...

Abstract: This article provides model of the retail gasoline market as multi-agent systems. The main factors, which affecting on the retail price of gasoline were determined. The authors found that using the agent approach, which takes into consideration the coalitions in the market, in particular, tacit collusion, it is possible to describe the behaviour of players correctly. An description of...

This paper explores the effects of a goods and services tax on the degree of competition in an oligopolistic industry and identifies a new mechanism through which the tax influences product market competition. The analysis focuses upon the effects of the tax in a concentrated industry and it is demonstrated that there exist circumstances under which the tax may promote competition by rendering ...

This paper investigates price patterns of off-patent pharmaceuticals in Sweden. I show that dynamics are dependent on the number competitors market. The follow predictions from a model dynamic competition which demand for incorporates known biases consumers: habit persistence and brand preferences. Using regulated market Swedish pharmaceuticals, may help identifying possible tacit collusion by ...