Can someone please tell me about the prejudice and the economy during the British slave trade?

I'm writing a paper about William Wilberforce and i am suppose to address the prejudice and then the economy. And im having difficulties finding information. Thanks so much!|||Rent the movie Amazing Grace. From the moment Wilberforce introduced the anti-slavery issue, it was not a matter of prejudices he had to over come so much as an economic issue. Without the slave trade, the economy would collapse. They relied heavily on it. Rent the movie, though. It's amazing.