A NEW guide for people wishing to research options for ethical investment has been published by Manchester Business School.

Ethical and Socially Responsible Investment lists more than 500 sources.

It has been written by Dominic Broadhurst, Janette Watson and Jane Marshall from the school's Business Information Service.

Mr Broadhurst, head of the service, said: "The value of UK ethical funds has grown more than tenfold over the last decade -- from £318m to around £4bn -- with the number of ethical investors standing at more than 470,000, compared to 137,000 six years ago."