Maritime commerce has many conflicting parties whose self-interest leads to unfair practices. They include governmental and industrial shippers, shipowners, bankers, brokers, forwarders, port labour and merchant marines. Others having important roles are: governmental and intergovernmental regulatory or investigatory bodies; conference line shipowners; owner consortia; vertically integrated transnational corporations who may control production and inland as well as maritime transport up to the end markets; and dockers and seafarers unions. Shippers, shipowners and union interests are too often competitively opposed to each other, and competition within the shippers and shipowners industries itself are the factors that can lead to unfair business practices.