Proposed changes to Arkansas’ Medicaid expansion program would reduce its cost by more than $356 million in the fiscal year that starts July 1, according to state Department of Human Services estimates.

The estimates include $307 million in federal and state funds saved by restricting eligibility to people with incomes of up to the poverty level, instead of 138 percent of the poverty level.

Imposing a work requirement on many of those remaining on the program would save an additional $49.4 million, the department calculated.

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Amazon, Berkshire Hathaway and J.P. Morgan have announced a nonprofit initiative to address excessive spending on health care, starting with their own million or so employees. They can expect many suggestions. Here’s one: The three CEOs— Jeff Bezos, Warren Buffett and Jamie Dimon, whom I’ll call “BB&D”—could do a huge service by describing the depth and nature of the cost problem, something politicians have long failed to do.

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