This awesome infographic by the ILSR – outlines how powerful Walmart has become in US food market. Farmers are now getting less % of the amount spent by the consumers. In 1995 the farmer would get 45 cents in every $1 that the consumer spent , in 2009 this had fallen to 25 cents.
I love the simple yet elegant design of this infographic and time has gone into how to present the stats in the right way. The final section of the infographic really hits home the negative effects that Walmart has on both local businesses and consumers.
Looking at the sources you can see that they all research reports or academic journals.