Access price regulation is used in telecommunications to prevent a vertically integrated firm, which controls an essential input, from raising the rivals' costs. When the authorities remove the access price as a strategic tool, it becomes optimal for the regulated firm to use the transfer price...

In this paper we show how an upstream firm can prevent destructive competition among downstream firms producing relatively close substitutes by implementing a price-dependent profit-sharing rule. The rule also ensures that the downstream firms undertake investments which benefit the industry in...

First, we analyze how regular days off from competition and a time-dependent price pattern affect firm performance. Second, we examine the effects on firms' profitability from consumers' changing search- and timing behavior. We use microdata from gasoline retailing in Norway. Since 2004, firms...

In this paper we compare the profitability of a merger to the profitability of a partial ownership arrangement and find that partial ownership arrangements can be more profitable for the acquiring and acquired firm because they can result in a greater dampening of competition. We also derive...

Text messaging has become an important revenue component for most mobile operators. We develop a simple model of demand for mobile services incorporating dynamics of information exchange. We show that when incoming communication stimulate outgoing communication, services that initially may be...

In this paper we compare the profitability of a merger to the profitability of a partial ownership arrangement and find that partial ownership arrangements can be more profitable for the acquiring and acquired firm because they can result in a greater dampening of competition. We also derive...