An issue not addressed in the study is one New Jersey Mr. Christie cited in killing the ARC tunnel, the move that gave rise to interest in the No. 7 train solution in the first place: cost.

WSJ: N.J. Subway Idea Lives

Now a team led by Michael Kuhlen of the Institute for Advanced Study in Princeton, New Jersey, has devised an explanation that lends weight to this idea.

ECONOMIST: Two new ways to detect the elusive stuff of the universe

The city hired the consultant Parsons Brinckerhoff in early 2011 to study the merits of extending the subway, shortly after New Jersey Gov. Chris Christie canceled the planned "Access to the Region's Core" cross-river tunnel project, which was a blow to those who believe the region is hampered by the limited capacity for trains crossing the Hudson between Manhattan and the suburbs.

WSJ: N.J. Subway Idea Lives

"Each individual robot is pretty dumb, " said Simon Garnier from the New Jersey Institute of Technology, lead researcher on the study.

BBC: Robot ants: mini-machines mimic insect colony

Once he found his footing as an artist, he arranged his life so he could study its moods at night from city wharves and on ferry rides to and from New Jersey.

WSJ: Tale Told by a Modern Romantic | Jonah | Albert Pinkham Ryder | By Sidney Lawrence

Economists billed the study as the first comprehensive look at the recession's effects on school funding in New Jersey and New York.

WSJ: Study Weighs Recession Toll

He notes that there were similar results from an earlier, much smaller 33-patient study, conducted by noted dermatologist Alice Gottlieb of the Robert Wood Johnson Medical Center in New Jersey.

FORBES: Magazine Article

However, a study by David Card and Alan Krueger found very little employment effect in the fast food industry in Pennsylvania and New Jersey.

FORBES: The Cruel Things President Obama Is Doing To The Labor Market