More than 100 demonstrators seeking better pay for McDonald’s workers were arrested on Wednesday as protesters swarmed the fast-food chain’s corporate campus near Chicago demanding a minimum wage of $15 an hour and the right to unionise.

The protest against McDonald’s Corp., the world’s biggest restaurant operator by revenue, came a day before a shareholder vote on executive pay, including that of chief executive Don Thompson, who earned total compensation of $9.5 million in 2013.

Rallies by low-wage restaurant and retail workers have helped fuel a national debate on pay inequality at a time when many middle- to low-income Americans are struggling to make ends meet.

Jessica Davis, a 25-year-old McDonald’s crew trainer with two children, said Thompson was earning his millions on the backs of working mothers and fathers.

“We need to show McDonald’s that we’re serious and that we’re not backing down,” said Davis, who earns $8.98 per hour at a Chicago McDonald’s.

McDonald’s, which is grappling with sagging US sales and higher beef prices, does not disclose average pay for restaurant workers, most of whom work for franchisees.

According to the Bureau of Labour Statistics, the 3.5 million fast-food and counter workers in the US earn a median hourly wage of $8.83.

US President Barack Obama has pushed Congress to raise the federal minimum wage to $10.10 per hour from $7.25. Washington, DC and 21 states have minimum wages higher than the federal minimum.

McDonald’s spokeswoman Heidi Barker Sa Shekhem said the company and its franchisees were monitoring the minimum wage debate.

“$15 is unrealistic, but we know that the minimum wage will increase over time,” she said.

“It’s time for the McDonald’s Corporation ... to stop pretending that it can’t boost pay for the people who make and serve their food,” said Mary Kay Henry, president of the Service Employees International Union (SEIU), who was among those arrested at the protest in Oak Brook, Illinois. Organisers said 2,000 people turned out for the rally.

A recent report from New York think tank Demos found that the CEO-to-worker compensation ratio for the fast food industry was more than 1,000-to-1 in 2013.

Thus far, public pension fund managers from New York City, Connecticut and the California Public Employees’ Retirement System (CalPERS) have said they plan to vote against the McDonald’s executive pay advisory measure at the company’s annual meeting yesterday.

Officials of the California State Teachers’ Retirement System (CalSTRS) and the Florida State Board of Administration said they would vote in support of the measure.

Chipotle Mexican Grill shareholders on May 15 voted overwhelmingly against an advisory pay proposal from the burrito seller, which paid its co-CEOs nearly $50 million last year. (Reuters)

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