I've never heard of monotonic being used for two (input) variables, but I suppose it would mean that, for each fixed value of y, u is a monotonic function of x, and for each fixed value of x, u is a monotonic function of y (and I expect they'd need to be either both monotonic increasing or both monotonic decreasing).
Business Trust Law & Legal Definition. Business trust is a form of business organization which is similar to a corporation, in which investors receive transferable certificates of beneficial interest.n some states, a business trust is subject to the laws of trusts whereas in other states the laws of corporations or partnerships govern its existence.
DEFINITION of 'Business Ethics'. The study of proper business policies and practices regarding potentially controversial issues, such as corporate governance, insider trading, bribery, discrimination, corporate social responsibility and fiduciary responsibilities.usiness ethics are implemented in order to ensure that a certain required level of trust exists between consumers and various forms of market participants with businesses.