According to Sherpa, which tracks journal publishers' approach to copyright, 90% of journals allow uploading of either the pre-print or the post-print of your paper. However, as publication agreements vary from user to user, journal to journal, and paper to paper, we are not able to say whether you can upload any specific full-text of a work to Academia. We recommend you contacting your publisher if you are not sure.
To learn more about copyright and Academia.edu, please visit our Copyright Policy FAQ.
Additional resources:
Pre- and post-print articles as defined by Sherpa
To learn more about copyright and Academia.edu, please visit our Copyright Policy FAQ.
Additional resources:
Pre- and post-print articles as defined by Sherpa