The creation of the film studio system and, subsequently, what became today's Hollywood, both good & bad.
( re: "An Empire of Their Own" by Neil Gabler )
The Goldwyns, Louis B. Mayer, the Zanucks, warner Brothers,etc.
Now Dreamworks SKG ( Spielberg,Katzenburg ,& Geffen )
Legendary Rock Concert promoter and owner of the filmore East & West, as characteriszed by his playing himself in his cameo role in "Apocalypse Now" ( 'member the Playboy helicopter and dem go-go dancing bunnies? )
Being a New Yawker I can mention the Publishing , Advertisng ,and Television industries including now cable thanks to the inarguable ownerships and corporate conglomerate governance by the likes of Barry Diller , Micheal Eisner ( Disney/ABC ) and formerly of Time/Warner Jerry Levin .
William Pailey, the architect of CBS News, then bought, cost-cut, news talent -gutted , and then sold by N.Y. billioniare Larry Tisch
NBC was Sarnof.
The New York Times owned by the Schuleburg family.
Lest we forget Steve Ruebel & Schacht whom created "Studio54"
and then indicted for tax evasion. I won't go into their lawyer , famed MacCarthy shill Roy "Citizen Cohen".
Fashion industry. Did you know toney Ralph Lauren's given name was Raplh Lipschitz ( only in America ).Throw in Calvin Klein, Donna Karan and then throw in the attendent chic-chic rag shops. Saks 5th Avenue being the one brand name most folks would recognize.
Some of the greatest Art Museums & Galleries in the world based in NY of which my personal favorite is the Guggenheim though not for most of the modernist art but for the single most unque sculpture that is the building itself designed by one of my favorite American icons, Frank Lloyd Wright.
Real Estate would be a whole library of books ; most famous of which is the Pulitzer Prize winning biography by Robert Caro of Robert Moses entitled "The Power Broker" .
So, summing up , the N.Y. Jewish immigrants gave the us a lot of what is known as New Yawk , New Yawk.
Take it or leave it.
Oh, Yeah, honorable mention to Ben & Jerry's ice cream.
They make up for the obnoxious phoneies Abby Hoffman & Jerry Rubin were.