LONDON--(BUSINESS WIRE)--Trading conditions are difficult in the London market, as insurers contend with changing buying habits, an influx of alternative capital and global economic uncertainty. The availability of alternative capital in the form of sidecars and catastrophe bonds continues to grow, attracted by uncorrelated risk at a relatively good rate of return. Additionally, competition is intensifying, most notably in the reinsurance sector, and is squeezing operating margins and leading m