'Beasts of the Southern Wild' Girl -- DOGGY BAG Earns Mega-Cash

Add "business mogul" to her resume -- TMZ has learned, 9-year-old Best Actress nominee Quvenzhane Wallis was personally responsible for an EXPLOSION in the doggy bag market this AM ... after rocking her puppy purse on the red carpet.

A rep for Poochie & Co. tells TMZ, the stuffed Yorkie purse was specifically designed for Wallis -- the youngest ever Best Actress nominee for her role in "Beasts of the Southern Wild" -- and sales skyrocketed this morning after Wallis debuted the bag on the red carpet last night.

We're told Wallis has been wearing the company's puppy purses to various media events since January -- resulting in a steady double-digit growth for the company -- but this morning, the company saw an exponential upsurge in sales numbers.

The rep tells us, the Poochie & Co. office has been flooded with calls and emails since this morning ... even from outside the U.S. ... and the company can barely keep up with demand.

As for why they chose to give her a Yorkie for the Academy Awards -- the rep says it's because one of Wallis' dogs is a Yorkie ... so it just made sense.

Wallis also owns a German Shepherd, but the rep said German Shepherds aren't "cute for girls."

WE COMPLETELY DISAGREE. As proof, here's a cute picture of a German Shepherd puppy. Suck it, haters.