Typically, rates range from 3.5 cents to 10 cents per word.
This is the typical rate for academic work. But I can't tell what the original poster is really getting at. Writers who do governmental or corporate reports -- as in, for governments and corporations -- charge much higher than the rates of academic writers. The work has to be done to a professional standard, not a student standard, and it takes far longer. I'd charge more like $1 per word. If it was student work, I'd charge the normal rates as quoted by ProfessorVerb.
Thanks for your replies ProfessorVerb and 99essays.
Recently one client has approached me to develop a Country Risk Report. I have developed it with the help of the sample provided by him. I just charged him $15 per page as it is an initial project. With your replies, it is clear that I charged bare minimum price.
I am trying to find more clients, who look out for similar reports, but I am really confused whether there are companies or people who look out for similar kinds of reports. So I just thought of asking - Is it really worth to spend time and expand the business in this particular field?