The cost of barriers to entry: evidence from the market for corporate euro bond underwriting

The advent of the euro has eroded many of the barriers that segmented the European corporate bond market along currency lines and given rise to a unified market comparable in size to the one denominated in US dollars. In doing so, the new currency has made it easier for investment banks to explore scale economies in the provision of underwriting services, lowered the entry barriers to this industry, and made it easier for European borrowers to benefit from scope economies by combining their purchasing of commercial and investment banking services. This paper shows that the arrival of the euro led to a reduction in the underwriting fees of corporate bonds issued in the new currency and that this reduction was largely due to greater contestability of the investment banking business in the post-EMU European market. Our paper also shows that the elimination of market segmentation led to a migration of underwriting business towards the larger international investment banking houses, particularly those from the United States, rather than an intensification of the business links between euro area borrowers and bankers from the same country. Moreover, borrowers that chose American investment banks appear to have made extra savings in the underwriting fees. Finally, our analysis shows that these fee savings were not overcome by an increase in the credit spreads of these borrowers' bonds at issue date. Altogether, these results suggest that borrowers attach more weight to placing capacity than to business relationships in the choice of an underwriter.