This paper analyses the impact of inequality on growth when technical progress is driven by innovations. It is assumed that consumers have hierarchic preferences. As a result inequality affects demand and therefore the incentive to innovate. Whether more inequality is harmful or beneficial for...

We study a two-country model where two firms, one domestic and the other foreign, must decide when to introduce their new product into the market. The home government may apply an import tariff, an administrative delay or both to the product of the foreign firm. An administrative delay imposes a...

Innovative activities often are heavily regulated. Reviews conducted by administrative agencies take time and are not perfectly accurate. Of particular concern is whether, by design or not, such agencies discriminate against more important innovations by taking more time to perform their...

Public opposition to the genetic engineering of food crops (GM food) has not been based solely on concern about biological risks. Economic risks have been widely cited too: the fear that the world's food supply will be concentrated in the hands of a few large firms, the fear that such firms will...

A national authority wishes to attract foreign direct investment (FDI) to create local jobs. We analyse the optimal national trade policy when local authorities might offer subsidies to convince a multi-national enterprise (MNE) to invest in their jurisdiction. With centralised decision-making...

We study the relationship between the length of patent review and the importance of inventions. We build a simple model of the U.S. patent review process. Among the model predictions are that, controlling for a patent's position in a new technology cycle, more important innovations would be...