CHICAGO — Nearly a year after Mayor Brandon Johnson’s administration floated the possibility of opening a municipally owned grocery store to help improve food access on the South and West sides, a feasibility study created for the city describes a municipal grocery model as “necessary, feasible, and implementable.” The study recommends the city pursue some version of a municipally owned store or stores — and finds such stores could even turn a profit. It also suggests the city not attempt to operate a supermarket itself, but rather partner with a for-profit operator, a non-profit operator or a co-op. Private grocers...