The unified government definition is ..

The government officials and citizens of the opposing states believe the drug creates a threat to citizens due to its “overly-harmful” effects mentally and physically and offers no alternate purposes but creating troublesome addicts hazardous to society; however, they are rather...

I find that shifts from a divided to a unified government depress investment and job creation.

In Mode 1—unified government—the minority party in Washington, shut out of power, has every incentive to make the majority’s life difficult, and does so. Its partisans, with no stake in whether anything gets done in Washington, treat the government as if it were under control of an invading army…. Democrats, when in total control, have little choice but to govern from the left. Republicans, who are even more conservative than Democrats are liberal, govern from the right. Policy is driven toward the edges, instead of the middle.

An Era of Divided Government | SpringerLink

See also TheLagos Local Government (Delimitation of the Town and Division into Wards)Order in Council 1950, No.

Which is to say that between 70 and 90 per cent of voters do not prefer divided government. Some prefer united Republican Party government. Others prefer united Democratic Party government. All, presumably, would prefer having part of the government controlled by the party they support to having all of the government controlled by the party they oppose. But that hardly means they think that divided government is somehow desirable in and of itself.

Qatar has an emirate –type government

Rauch’s evidence: “In all three of the most recent earthshaking midterm elections—1994, 2006 and now 2010—the same candidate won,” that candidate being, yes, “divided government.”

Fabian Society » Fabian Essays

I use US gubernatorial elections from 1978 to 2010 and a regression discontinuity design to estimate the causal effects of giving a single party full versus split control over a state government.