If you are new to Law and economics discipline of legal analysis, the following work may be a stimulating, historical way in:
Subject search string to use in SOLO
Antitrust law - economic aspects
Below are some results from such a search -
first some View online (e-books) then print copies (take off a shelf)
The book below may be a helping hand into this discipline
A colleague in the Social Science Library has written a Libguide to resources used by economics students
The LawBod's neighbour, the Bodleian Social Science Library (SSL), is where to find economics and policy, generally. Use link below to see its opening times etc.