With rights to six tickets and no desire to see President Barack Obama address Arizona State University's commencement, Mike Rogers' business schooling kicked in: He posted his tickets on Craigslist and planned to sell them to the highest bidder.

"There's a high demand for these tickets," said Rogers, who is completing a degree in management. "That's what I've been taught for the last four years: to identify the segments and the niches in the market and fill them and make money."

He isn't the only graduate trying to sell or trade tickets to the May 13 ceremony, which is scheduled for Sun Devil Stadium. Craigslist and eBay have an assortment of ads offering tickets for up to $200 or as low as a 30-pack of beer apiece.

That's drawn the ire of university officials, who say selling the tickets violates the school's code of conduct. In responses to the ads, they're threatening to revoke sellers' tickets and subject them to administrative penalties.

"It sort of cheapens the dignity of the event to sell tickets," said Sharon Keeler, an ASU spokeswoman.

ASU and the White House announced last month that Obama would address the school's graduating class, which numbers around 8,000.

According to school policy, tickets to the event can't be sold, traded, bartered, assigned or transferred in any way.

However, it remains to be seen whether the university can locate sellers. eBay doesn't require real names, and those posting on Craigslist can cloak their e-mail addresses.

The university also was attempting to get Craigslist to remove the ads, Keeler said.

She said sellers would be referred to a judicial board, but she didn't know whether the sanctions could include holding back the students' degrees. A call to ASU Student Affairs, which enforces the code, wasn't returned Wednesday.

No one has tickets yet; they'll be distributed later this month. Graduating students can request up to six, including one for themselves, by submitting names to the university.

Ashley, a Craigslist seller who spoke on the condition that she be identified only by her first name, said she was terrified she'd lose her right to graduate in May. But that didn't stop her from asking $80 for a pair of tickets.

"I can use the money more than going to see Obama speak," she said.

After she posted her cell phone number on the ad, Ashley said a woman called to criticize her.

"She said, ‘Don't you know what you're doing is wrong?'" Ashley said.

Stephen Happel, an ASU economics professor, said selling the tickets falls right in line with the ideals of capitalism.

"What do we teach students in business? Buy low, sell high," he said. "If they get the tickets for free and sell them, yippee-aye-oh!"

It comes as no surprise that students, generally a cash-strapped group, are using the opportunity to make money, Happel said. And given the anonymity the Internet offers, he thinks enforcing the ticket policy is nearly impossible.

"The only way you could prevent scalping for those seats is if each ticket is given out just before the event and the students are escorted to their seats," he said. "To think you're going to stop scalping at something like this is just lunacy."