An expected influx of cash from an easing of sanctions after a nuclear deal between Iran and major powers looks likely to be directed mainly at reviving a moribund economy rather than increasing Iranian assertiveness.

The critics of the deal, including most gulf Arab governments and Israel, contend that Iran has made no secret of its determination to expand its influence across the region.

Yet it is the economy where Iran is feeling most pain, and growth and jobs are the things that President Hassan Rouhani promised to deliver when he was elected in 2013 on a ticket of ending Iran's isolation.