I want to prove that there is a market for larger size shoes for trendy young women.

I am a marketing student who models. I am very tall and a size 12 shoe. I go to school with other tall lovelies who have trouble finding shoes they want.

Those lovley ladies count as primary sources but– I need “already done” research so that I can site my sources on a larger scale. Are there any secondary sources that are sharing this kind of info?

I searched nytimes.com and google and I did not find any relevant articles.

Is there a footwear/ shoe size national trade association or anything like that?

What other sources should I try?

Thanks.