This week the Republican governors of Montana and South Carolina said they planned to cut off federally funded pandemic unemployment assistance at the end of June, citing complaints by employers about severe labor shortages.

That means jobless workers there will no longer get a $300-a-week federal supplement to state benefits, and the states will abandon a pandemic program that helps freelancers and others who don’t qualify for state unemployment insurance. (Montana will, however, offer a $1,200 bonus for those taking jobs.)

“What was intended to be short-term financial assistance for the vulnerable and displaced during the height of the pandemic has turned into a dangerous federal entitlement, incentivizing and paying workers to stay at home,” declared Gov. Henry McMaster of South Carolina.

But that view is just one piece of a broad debate about the impact of temporarily enhanced unemployment benefits during the pandemic.

Gail Myer, whose family owns six hotels in Branson, Mo., says the $300-supplement is indeed a barrier to hiring. “I talk to people all over the country on a regular basis in the hospitality industry, and the No. 1 topic of discussion is shortage of labor,” he said.

Before the pandemic, Mr. Myer said, there were about 150 full-time employees at his six hotels. Now, staffing is down about 15 percent, he said. Jobs at Myer Hospitality for housekeepers, breakfast attendants and receptionists are advertised as paying $12.75 to $14 an hour, plus benefits and a $500 signing bonus.

Worker advocacy groups offer a different perspective. “The shortage of restaurant workers we are seeing across the country is not a labor-shortage problem; it’s a wage-shortage problem,” said Saru Jayaraman, president of One Fair Wage, a minimum-wage advocacy group.

In surveys of food service workers by One Fair Wage and the Food Labor Research Center at the University of California, Berkeley, three-quarters cited low wages and tips as the reason for leaving their jobs since the coronavirus outbreak. Fifty-five percent mentioned concerns about Covid-19 as a factor. And nearly 40 percent cited increased hostility and harassment from customers, often related to wearing masks, in addition to long-running complaints of sexual harassment.

Amy Glaser, senior vice president at the staffing firm Adecco, said former restaurant workers and others were migrating toward warehousing jobs that had raised wages to as high as $23 an hour and customer service jobs that could be done from home.

The United States needs to quickly find new supplies of lithium as automakers ramp up manufacturing of electric vehicles.

Lithium is used in electric car batteries because it is lightweight, can store lots of energy and can be repeatedly recharged. Other ingredients like cobalt are needed to keep the battery stable.

But production of raw materials like lithium, cobalt and nickel that are essential to these technologies are often ruinous to land, water, wildlife and people, Ivan Penn and Eric Lipton report for The New York Times. Mining is one of the dirtiest businesses out there.

That environmental toll has often been overlooked in part because there is a race underway among the United States, China, Europe and other major powers. Echoing past contests and wars over gold and oil, governments are fighting for supremacy over minerals that could help countries achieve economic and technological dominance for decades to come.

Mining companies and related businesses want to accelerate domestic production of lithium and are pressing the administration and key lawmakers to insert a $10 billion grant program into President Biden’s infrastructure bill, arguing that it is a matter of national security.

“Right now, if China decided to cut off the U.S. for a variety of reasons we’re in trouble,” said Ben Steinberg, an Obama administration official turned lobbyist. He was hired in January by ​Piedmont Lithium, which is working to build an open-pit mine in North Carolina and is one of several companies that have created a trade association for the industry.

So far, the Biden administration has not moved to help push more environmentally friendly options — like lithium brine extraction, instead of open pit mines. Ultimately, federal and state officials will decide which of the two methods is approved. Both could take hold. Much will depend on how successful environmentalists, tribes and local groups are in blocking projects.

Even as a chip shortage is causing trouble for all sorts of industries, the semiconductor field is entering a surprising new era of creativity, from industry giants to innovative start-ups seeing a spike in funding from venture capitalists that traditionally avoided chip makers, Don Clark reports for The New York Times.

“It’s a bloody miracle,” said Jim Keller, a veteran chip designer whose résumé includes stints at Apple, Tesla and Intel and who now works at the artificial intelligence chip start-up Tenstorrent. “Ten years ago you couldn’t do a hardware start-up.”

Chip design teams are no longer working just for traditional chip companies, said Pierre Lamond, a 90-year-old venture capitalist who joined the chip industry in 1957. “They are breaking new ground in many respects,” he said.

• Equity investors for years viewed semiconductor companies as too costly to set up, but in 2020 they plowed more than $12 billion into 407 chip-related companies, according to CB Insights. Cerebras, a start-up that sells massive artificial-intelligence processors that span an entire silicon wafer, for example, has attracted more than $475 million. Groq, a start-up whose chief executive previously helped design an artificial-intelligence chip for Google, has raised $367 million.

• Taiwan Semiconductor Manufacturing Company and Samsung Electronics have managed the increasingly difficult feat of packing more transistors on each slice of silicon. IBM on Thursday announced another leap in miniaturization, a sign of continued U.S. prowess in the technology race.

• More companies are concluding that software running on standard Intel-style microprocessors is not the best solution for all problems. Giants like Apple, Amazon and Google more recently have gotten into the act. Google’s YouTube unit recently disclosed its first internally developed chip to speed video encoding. And Volkswagen said last week that it would develop its own processor to manage autonomous driving.