In terms of a simple model we show that removal of tariff from a competing foreign brand is likely to expand the size of the domestic industry when income disparities exist. A tariff increases profits of the local monopolist but is capable of cutting down the size of the local industry. After...

When entry of the relatively inefficient firms is deterred due to fixed costs, leading to a monopoly of the relatively efficient firm, guaranteed production quota for the less efficient ones can increase consumers' surplus. In other words, restricting the output of more efficient firm helps to...

We study the question of optimal licensing contracts in a leadership structure and discuss the welfare implications. We assume that the size of the innovation is exogenous and the patent holder is a competitor in the product market. Then welfare depends on the types of contracts available and on...

The question of an optimal licensing contract in a leadership structure is studied when the patent holder is a non-producer and has three alternative licensing strategies, namely fixed fee, royalty and auction. Assuming once-for-all licensing contracts, we show that royalty dominates other modes...

This paper seeks to explain why some pharmaceutical companies are observed to withdraw their products before patents are expired and simultaneously introduce new patented (competing) products. Given the specific nature of drug markets, the companies in fact increase the entry cost of the...

Spillover of R&D results in oligopolistic industries may affect the R&D decisions of firms. How much a newly eveloped technology by a firm gets spilled over to its rival firms may or may not be observable by the concerned firm. This paper considers a two stage game involving two firms. In the...

Spillovers of R&D outcome affect the R&D decision of a firm. The present paper discusses the R&D incentives of a firm when the extent of R&D spillover is private information to each firm. We construct a two stage game involving two firms when the firms first decide simultaneously whether to...