Chicago Faces Deep-Seated Ills in Shadow of Citadel-Boeing Loss

Earlier this year, as Chicago’s frigid weather was finally giving way to spring and commuters began returning to downtown office buildings, the city got an unwelcome jolt.

In the space of just seven weeks in May and June, Chicago was hit by a pair of corporate defections: Illinois’s richest man,Ken Griffin, announced he’s moving the home of his $57 billion Citadel hedge fund to Miami and Boeing Co. said it wouldpull its headquarters from the city. Caterpillar Inc. also decided to move its global headquarters to Texas from the nearby suburb of Deerfield.

Citadel is transferring as many as 400 people ...