His mother was Italian, hence his name - Luca.
Peter's leaving at the end of this week - hence his anxiety to get his work finished.
The prime minister was attending the conference, hence all the extra security.
He's just got a pay rise, hence the new car.
She's just found out she failed her exams, hence her bad mood.
The firm is owned by Mark Atkins, hence the name - MA Advertising.
Formal institutions are easy to identify, analyze, and engineer; hence, they provide a naturally attractive field............