Consider this: 92 percent of Australian workers have 401(k)-style plans, while less than half of Americans have any kind of pension coverage on their current job. This yawning disparity exists, because the Australian government requires employers to contribute 9 percent of each worker’s earnings to a personal account, which participants invest much like a 401(k). Under reforms to Australia’s system, employer contributions will rise gradually until 2020 – to 12 percent. Even though Aussie employers are mandated to make the contributions, economists argue, the money ultimately comes from workers – through lower wages. But U.S. workers, left on their own, have proved to be poor savers, and the fact remains that putting the onus on employers to ensure that retirees…