He looks over at the sign that says BROWNIES ¢10 LEMONADE $20

“Hey kid, your sign is wrong. I think you mean twenty cents.”

The little girl shakes her head. “Nope, twenty bucks mister. You want some?”

“Look sweetie, you’re too young to understand economics but you can only change what someone is willing to pay. It doesn’t cost you much to make it, so if you charge a lower price you’ll make more profit.”

The little girl thinks for a moment. “Hmm…nope! Twenty bucks mister!”

The stockbroker gives a little sigh and shakes his head. “Okay look… I studied economics at Harvard and I got my MBA from Wharton so I’m going to teach you a little about business, okay? You’re losing money on the brownies but you’re not making any profit because nobody wants to pay that much for a lemonade when they can get it cheaper a few blocks away. Understand?”

“Nope! Twenty bucks mister!”

“You know what? I give up, guess this is the only way you’ll learn. Here’s a dime for a brownie, I bet it cost you more than that.”

“Okay!” The girl takes the dime and the stockbroker decides to eat the brownie right in front of her to make the point.

Suddenly he begins coughing and gagging uncontrollably. “Oh my God…what is…this tastes like sawdust and dog shit! Get this taste out of my mouth!”

The little girl cocks her head to the side and says through a beaming grin, “Ya want some lemonade?”