Procurement within the NHS is attracting increasing research and policy interest. However, most of the emphasis has been on the buyer (the NHS), with less attention paid to the behaviour of suppliers (often pharmaceutical companies). For medical devices very little is publicly documented about...

In this short research note we investigate the role of diversification in the firm growth process. We build on Penrose's (1959) Theory of the Growth of the Firm to formulate hypotheses about growth of employment, assets, and sales in the years before, during and after a new product introduction....

Product scope adjustment is a key mechanism through which multi-product firms achieve efficient resource allocations. In this paper, we take a novel perspective to study firms' product scope adjustment behavior through the lens of asset pricing. Using a unique panel scanner data set containing...

Over the period 1980-2007 multinational firms' investment grew four times faster than worldwide GDP. Yet the evidence on whether global diversification is valuable is inconclusive. This paper uses detailed FDI data for 251 UK multinational firms and 4,676 subsidiaries to show that multinational...

This paper presents evidence that subsidiaries of multinational firms have higher valuations than locally matched firms. Using a unique sample of 251 UK multinational firms and 4,676 subsidiaries, the paper finds that multinational firms achieve, on average, an international diversification...

We propose and test a view of corporate diversification as a strategy that exploits internal information markets, by bringing together information that is scattered across the economy. First, we construct an inter-industry network using input-output data, to proxy for the economy's information...

We document a strong decline in corporate-diversification activity since the late 1970's, and we develop a dynamic model that explains this pattern, both qualitatively and quantitatively. The key feature of the model is that synergies endogenously decline with technological specialization,...

Measurement of diversification has always remained one of the critical issues in earlier studies. During the past half-century or more, many measures of corporate diversification have been suggested (and applied) by a number of authors. These ranged from qualitative to quantitative measures and...

For too long, most people who run companies have made a variety of unwarranted but detrimental assumptions about pricing. Changing prices, for example, has been looked upon as an easy, quick and reversible process, and new technologies have only reinforced that way of thinking. Similarly,...

We investigate the impact of product market competition on firms' systematic risk. Using a measure of total product market similarity, we document a strong negative link between market power and market betas. There is a more than threefold increase in the effect during the most recent...