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    U.A.W.’s Expanding Strikes Could Signal an Endgame or a Long Struggle

    The United Automobile Workers on Tuesday expanded its strike to General Motors’ largest U.S. plant a day after striking at a Ram truck plant.The United Automobile Workers union shut down production at General Motors’ largest U.S. factory on Tuesday, significantly stepping up pressure on the large U.S. automakers as signs multiplied that the six-week strike is taking a toll on profits.The union told 5,000 workers at G.M.’s plant in Arlington, Texas, to stop working on the same day that the automaker announced a drop in its third-quarter profit and said U.A.W. work stoppages, which have also hit Ford Motor and Stellantis, had cost it $800 million so far.The strike in Arlington continued the union’s strategy of targeting some of the carmaker’s most profitable vehicles. The Texas factory makes large sport utility vehicles including the Chevrolet Tahoe, GMC Yukon and Cadillac Escalade.Before the Tuesday expansion, there had been signs that the union and G.M. were close to an agreement. Some analysts said the union’s decision to raise the stakes was part of an endgame strategy to squeeze the last dollar from the company.The U.A.W. president, Shawn Fain, “has been saying he still had some levers to pull to push the companies, and now he’s pulling them,” said Arthur Wheaton, director of labor studies at Cornell’s School of Industrial and Labor Relations. “So I think this is the union’s final push to the companies, saying, ‘Let’s get this deal done.’”But it is also possible the companies and the union are still far from striking deals and the U.A.W. is demonstrating that it still has plenty of cards to play.“My gut feeling is that they’re not close and this is trying to impose more cost and say, ‘Look, you guys have to get closer to what we want or we’ll keeping doing this,’” said Patricia Anderson, a professor of economics at Dartmouth College.On Monday, the union struck a Ram pickup truck plant, the largest U.S. factory operated by Stellantis, which also owns Jeep and Chrysler. The U.A.W. has also struck Ford Motor’s largest plant, in Louisville, Ky., which produces large pickup trucks and the Lincoln Navigator S.U.V.“Another record quarter, another record year; as we’ve said for months: record profits equal record contracts,” Mr. Fain said in a statement. “It’s time G.M. workers, and the whole working class, get their fair share.”G.M. executives had said earlier on Tuesday that they hoped to reach a tentative agreement with the union soon. The Texas walkout dimmed those hopes.The longer the strike lasts, the greater the risk it will become a drag on the U.S. economy, or make it harder for consumers to find the vehicles they want.The automakers have been keen to point out the ripple effects that the strikes are having on other workers. Stellantis, the maker of Chrysler and Jeep, said on Tuesday that it laid off 525 workers at two Michigan factories, in Sterling and Warren, that make parts for Ram pickup trucks that are not needed while the assembly line is shut down by the strike.All told, Stellantis has temporarily laid off more than 2,000 workers because of the strikes. Ford has laid off more than 3,000 workers because of the strike, according to the company. G.M. has laid off about 2,500, including about 140 at a factory in Ohio who made parts for the factory in Arlington and were let go on Tuesday. Another 3,000 workers at G.M. suppliers are temporarily out of work because of the strike, according to the company.“We are disappointed by the escalation of this unnecessary and irresponsible strike,” G.M. said in a statement. “It is harming our team members who are sacrificing their livelihoods and having negative ripple effects on our dealers, suppliers and the communities that rely on us.”Where Autoworkers Are Walking Out More

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    G.M. Profit Down 7% in Strike-Affected Quarter

    The carmaker reported $3.1 billion in profit from July through September, which included two weeks of walkouts by the United Automobile Workers.General Motors said on Tuesday that it made $3.1 billion in profit from July through September, a year-over-year decline of more than 7 percent that was due partly to the six-week strike by the United Automobile Workers, which has idled two of the company’s vehicle plants and 18 of its parts distribution centers.G.M. said the strike had lowered its earnings before interest and taxes by about $200 million in the final weeks of the third quarter, and by about $600 million since the fourth quarter started on Oct. 1. The automaker also estimated that the strike could cost it $200 million a week going forward.“We continue to be optimistic we will be able to reach an agreement as soon as possible,” G.M.’s chief financial officer, Paul Jacobson, said in a conference call with reporters, but he declined to say if the company believed it was near a deal on a new contract with the U.A.W.On Friday, G.M. gave the union a contract offer that included a 23 percent increase in wages over four years. That would lift the standard U.A.W. wage from $32 an hour to more than $40. At that wage, an employee working 40 hours a week would earn about $84,000 a year, not including extra pay for overtime or profit-sharing bonuses, which have topped $10,000 in the past two years.Mr. Jacobson said negotiations with the union were continuing. The union’s strike, which has targeted specific sites owned by Detroit’s Big Three automakers, has idled a G.M. pickup truck plant in Missouri and another in Michigan that makes large sport utility vehicles.In the third quarter, G.M. earned almost all of its profit in North America, which is largely driven by factories in the United States staffed by U.A.W. members. Its bottom line was hurt by a 42 percent drop in profits from its joint ventures in China, a small profit decline in its financial arm and a loss from its Cruise division, which is working to develop self-driving cars.Despite the strike, G.M. reported that its revenue rose about 5 percent in the third quarter, to $44.1 billion. It sold 981,000 vehicles globally in the quarter, about 15,000 more than a year earlier.The company’s quarterly results were better than analysts expected, and G.M.’s stock rose in premarket trading on Tuesday.Mr. Jacobson said that G.M. hoped to introduce redesigned S.U.V. models that would be more profitable than those they were replacing, and that the company would save money by slowing its planned rollout of electric vehicles. G.M. recently said it was pushing back the start of production of electric pickups at a plant in Orion, Mich., from 2024 to late 2025, in response to slower-than-expected growth in sales of E.V.s.While G.M. is now planning a slower ramp-up of E.V. production in 2025, it still aims to be able to produce one million electric vehicles a year in North America by the end of 2025, Mr. Jacobson said.“Our commitment to an all-E.V. future is as strong as ever,” he said. More

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    Bill Ford Says U.A.W. Strike Is Helping Tesla and Toyota

    Mr. Ford, the executive chairman of Ford Motor, said nonunion automakers would make gains against Michigan automakers because of strikes by the United Automobile Workers union.The monthlong strike by the United Automobile Workers and the union’s demands for substantial pay and benefits increases risk damaging the U.S. auto industry, hurting its ability to compete against nonunion foreign rivals, the executive chairman of Ford Motor said on Monday.The fight should not be seen as the U.A.W. against Ford, or its crosstown rivals, General Motors and Stellantis, said William C. Ford Jr., the great-grandson of the company’s founder Henry Ford, noting that at times U.A.W. officials have referred to the automakers as the union’s “enemy.”“It should be Ford and the U.A.W. against Toyota, Honda, Tesla and all the Chinese companies that want to enter our home market,” Mr. Ford said at the company’s Rouge plant in Dearborn, Mich.“Toyota, Honda, Tesla and the others are loving the strike, because they know the longer it goes on, the better it is for them,” the executive chairman said. “They will win, and all of us will lose.”Mr. Ford’s remarks alluded to a period several decades ago when the U.A.W. won increasingly rich contracts that were later seen by many industry experts as having hobbled the three Michigan automakers in the face of competition from Japanese and European carmakers. Ford came to the brink of collapse, and G.M. and Chrysler — now part of Stellantis — had to seek bankruptcy protection after the 2008 financial crisis.“Ford’s ability to invest in the future isn’t just a talking point,” Mr. Ford said. “It is the absolute lifeblood of our company. And if we lose it, we will lose to the competition. Many jobs will be lost.”In a statement, the U.A.W. president, Shawn Fain, said Mr. Ford should “stop playing games” and meet the union’s demands, or “we’ll close the Rouge for him.” Mr. Fain added that the U.A.W. was not fighting the company but “corporate greed.”“If Ford wants to be the all-American auto company, they can pay all-American wages and benefits,” Mr. Fain said. “Workers at Tesla, Toyota, Honda and others are not the enemy — they’re the U.A.W. members of the future.”Ford, G.M. and Stellantis have been negotiating new labor contracts with the U.A.W. since July. Over the past month, the union has called on workers at a few plants to go on strike. The action has idled three Ford plants, two G.M. factories and one Stellantis plant. Workers at 38 G.M. and Stellantis spare-parts warehouses are also on strike.The strategy is intended to increase pressure on the companies to meet the union’s demands for significantly higher wages, shorter working hours and expanded pensions, and to end a system that pays new hires just over half of the top U.A.W. wage of $32 an hour.The companies have offered wage increases of more than 20 percent over the next four years and certain other measures in line with the union’s demands, but the U.A.W. is pressing for greater concessions.Last week, the union called for a strike by 8,700 workers at Ford’s Kentucky truck plant in Louisville, the company’s largest.Ford executives said last week that the company had made a record offer to the union and that sweetening the deal would hurt the automaker’s ability to invest in electric vehicles and other new models and technologies.Mr. Ford, who has had a role in every round of negotiations with the U.A.W. since 1982, said the talks had reached “a crossroads” and warned that labor contracts that burdened the automakers with heavy costs could affect the U.S. economy.“The price of failure should be clear to everyone,” he said. “Let’s come together and reach an agreement, so we can take the fight to the real competition.” More

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    U.A.W. Says Auto Strikes Will Become More Unpredictable

    The United Automobile Workers union refrained from expanding the strikes at Ford, General Motors and Stellantis but said it could do so at any time.Four weeks after starting limited strikes against three large automakers, the United Automobile Workers is shifting to a more aggressive strategy, suggesting that work stoppages could spread to more plants and possibly go on for some time.In an online video, the union’s president, Shawn Fain, said on Friday that he would no longer wait to announce expansions of the strikes on Friday, as he had been doing. Further actions could come at any time.“We’re not messing around,” Mr. Fain said. “The companies are now on notice. If they’re not willing to move, we are going to give them a push.”The union began its strikes on Sept. 15 when workers walked out of three plants, owned by General Motors, Ford Motor and Stellantis, which makes Chrysler, Jeep and Ram vehicles. It has since expanded the strike in stages, in a bid to increase the pressure on the companies.Stellantis said on Friday that it was temporarily laying off an additional 700 workers at two plants in Indiana that supply transmissions and castings for a Toledo, Ohio, Jeep factory that has been idled by the U.A.W. strikes. Stellantis has laid off more than 1,300 workers in total in response to the union’s strikes.Ford has laid off more than 1,900 workers as a result of the strike, and G.M. about 2,300. Ford said about 90 of its parts suppliers had laid off about 13,000 workers.Stellantis also said its negotiations had made progress in talks with the U.A.W. this week. The company said it hoped “to reach an agreement as soon as possible to get everyone back to work.”The U.A.W. and the automakers have been negotiating new labor contracts since July.On Wednesday, the U.A.W. unexpectedly told workers to walk out of Ford’s Kentucky Truck Plant in Louisville. It is the company’s largest and the producer of its highly profitable Super Duty version of its F-Series pickup trucks.Ford has said the Kentucky plant typically produces a new truck every 37 seconds, and generates $25 billion in revenue, about 16 percent of the company’s annual total.All told, the strike has halted operations at three Ford plants in Michigan, Chicago and Kentucky; two G.M. plants in Michigan and Missouri; and a Stellantis plant in Ohio. U.A.W. members are also on strike at 38 G.M. and Stellantis spare-parts warehouses across the country.About 34,000 of the 150,000 U.A.W. members employed by the three companies are now on strike.The U.A.W. has demanded substantial wage increases and improvements in other areas of its contract, like retirement plans. The union also wants an end to a system that pays new hires a little over half the top U.A.W. wage of $32 an hour.The union is also concerned about the possible loss of jobs as automakers ramp up production of electric vehicles. The companies have offered wage increases of more than 20 percent over four years and to reduce the time it takes a new worker to rise to the top wage to four years from eight.On Thursday, Ford officials said the company had reached its limit on what it could offer the union without hurting the company’s business and its ability to continue heavy investments in electric vehicles. “Any more will stretch our ability to invest in the business,” Kumar Galhotra, president of the Ford division that makes combustion engine vehicles, said on a conference call on Thursday.Apart from the car companies, U.A.W.-represented workers went on strike this week at Mack Trucks. Its members voted this week to authorize a strike against General Dynamics, an aerospace and defense contractor. The U.A.W. also represents about 1,000 workers who have been on strike at Blue Cross Blue Shield of Michigan for a month. More

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    Ford Says It Won’t Raise Its Contract Offer to U.A.W.

    The company said it had reached the limit of what it could offer to the United Automobile Workers union, which has expanded its strike to Ford’s largest plant.Ford Motor said on Thursday that it could not improve its contract offer to the United Automobile Workers union without hurting its business and its ability to invest in electric vehicles.The automaker also said the union’s decision to expand its strike to Ford’s largest factory, the Kentucky Truck Plant, would probably hurt workers at other factories and lead to layoffs across the auto industry.“We are very clear,” Kumar Galhotra, president of the Ford division that makes combustion engine vehicles, said in a conference call with reporters. “We are at the limit. Any more will stretch our ability to invest in the business.”The U.A.W. is negotiating new labor contracts with Ford, General Motors and Stellantis, the parent of Chrysler and Jeep. The union’s members have struck selected plants and parts warehouses owned by the three companies. On Wednesday, its talks with Ford broke down, and the union responded by calling on the 8,700 U.A.W. workers at Kentucky Truck to walk off the job.“If the companies are not going to come to the table and take care of the membership’s needs, then we will react,” the U.A.W. president, Shawn Fain, said in an online video after the strike in Kentucky was announced.Production at the plant, in Louisville, stopped Wednesday evening. The factory makes the Super Duty versions of Ford’s F-Series pickup trucks as well as the Ford Expedition and Lincoln Navigator full-size sport utility vehicles.On its own, the Kentucky Truck plant generates about 16 percent of Ford’s revenue. On a typical day, a new vehicle rolls off its assembly line every 37 seconds.The plant is so large that a prolonged idling will probably cause stoppages and layoffs at up to 13 other Ford plants that make engines, transmission and axles. Factories owned by the 600 suppliers that provide parts for Ford could also have to lay off workers, Mr. Galhotra said.“This goes way beyond just hitting Ford’s profits,” he said.The U.A.W. is seeking a substantial increase in wages as well as a cost-of-living provision, an expanded retirement plan, improved retiree health care benefits and job security as automakers make the transition to producing electric vehicles. It also wants to end a system in which new hires start at a little more than half the top U.A.W. wage of $32 an hour.Ford has offered to increase wages 23 percent over four years, adjust wages in response to inflation and cut the time for new hires to rise to the top wage, to four years from eight.The U.A.W. went into a negotiating session on Wednesday expecting Ford to sweeten its offer, according to the union. Mr. Galhotra said Ford was prepared to discuss adjustments to its existing offer but not to make a completely new proposal.The differences became clear quickly, and Mr. Fain instructed Ford workers at the Kentucky plant to strike, union and company officials said. Mr. Fain and other union negotiators left the meeting minutes after it started.“Unfortunately, we had to escalate our action,” Mr. Fain said in his video. “We came here today to get another offer from Ford, and they gave us the same exact offer as two weeks ago.” More

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    G.M. Reaches Deal With Canadian Union

    General Motors and the Unifor union reached an agreement hours after more than 4,000 workers went on strike on Tuesday.General Motors and a Canadian union, Unifor, reached a tentative deal on a new contract on Tuesday, ending a short-lived strike by more than 4,000 workers that began earlier in the day.The deal includes the same raises and other terms that Unifor had agreed to last month with Ford Motor, including a 20 percent wage increase for production workers over three years and a 25 percent raise for skilled trades workers.The contract must be ratified by Unifor members before it can take effect. Workers at Ford’s Canadian operation have ratified their contract.Work was expected to restart at the three G.M. plants and distribution centers that were struck on Tuesday afternoon.This agreement “recognizes the many contributions of our represented team members with significant increases in wages, benefits and job security while building on G.M.’s historic investments in Canadian manufacturing,” the company said in a statement.The tentative deal was reached after nearly 4,300 Unifor workers walked off the job at midnight on Tuesday at three locations in Ontario: a vehicle assembly plant and stamping site in Oshawa that makes the company’s popular Chevrolet Silverado pickup truck; a plant in St. Catharines that supplies engines and transmissions to G.M. factories around the world; and a parts distribution center in Woodstock.Unifor had been pushing G.M. to accept the same terms as those in the Ford contract, a practice known as pattern bargaining that the automakers and their unions have long used.“When faced with the shutdown of these key facilities, General Motors had no choice but to get serious at the table and agree to the pattern,” Unifor’s national president, Lana Payne, said in a statement. “The solidarity of our members has led to a comprehensive tentative agreement that follows the pattern set at Ford Motor Company to the letter.”Ford’s agreement with Unifor, in addition to wage increases, provides productivity bonuses, higher entry-level wages, improved pensions, cost-of-living allowances and other improvements. G.M. also agreed to convert all temporary workers into permanent employees over the life of the agreement.Workers at G.M.’s CAMI Assembly Plant in Ingersoll, Ontario, are covered by a separate contract and did not go on strike on Tuesday. Unifor represents 315,000 workers in a variety of industries.In the United States, the United Automobile Workers union is on strike at a G.M. pickup truck plant in Missouri, a sport-utility plant in Michigan and parts warehouses around the country. The U.A.W. has also struck two Ford plants. At Stellantis, the maker of Chrysler, Jeep and Ram vehicles, union members have struck one factory and 20 parts warehouses.Altogether, about 25,000 of the 150,000 U.A.W. members employed by the three automakers are on strike. Like Unifor, the U.A.W. is seeking a substantial increase in wages, pensions for a greater number of workers, and a shorter time to move up to the top wage level.Talks began in July, and the strike began on Sept. 15, when the current labor contracts with the companies expired. More

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    U.A.W. Workers at Mack Truck Go on Strike

    The strike at the truck manufacturer by 4,000 members of the United Automobile Workers comes in the middle of the union’s strikes at three large U.S. car companies.Nearly 4,000 members of the United Automobile Workers union went on strike against Mack Trucks on Monday after rejecting a tentative contract that union’s leaders had worked out with the company.The union informed the truck maker on Sunday that members had opposed the contract by a 73 percent vote, and that a strike would begin at Mack’s factories in Pennsylvania, Maryland, and Florida.“The members have spoken, and as the highest authority in our union, they have the final word,” the U.A.W. president, Shawn Fain, wrote in a letter to Mack’s parent company, Volvo Trucks.The two sides have been negotiating for three months over a range of issues including wage increases, cost-of-living allowances, job security, pensions, prescription drug coverage and overtime. The proposed contract included raises of 19 percent over five years and a bonus of $3,500 for ratifying the agreement.Mack’s president, Stephen Roy, said in a statement that the company was “surprised and disappointed,” noting that the U.A.W. negotiators had called the tentative agreement a “record contract for the heavy truck industry.”Commercial truck sales have been recovering slowly from the disruptions caused by the coronavirus pandemic. Volvo has forecast about a 10 percent increase in industrywide truck sales this year in North America. Mack has about a 6 percent share of the North American market.The Mack strike comes as the U.A.W. is conducting a strike at plants and distribution centers owned by the three automakers, General Motors, Ford Motor, and Stellantis, the maker of Chrysler, Jeep, and Ram vehicles.The auto strike began nearly a month ago at three plants and the U.A.W. has expanded it in a bid to increase the pressure on the manufacturers. About 25,000 of the 150,000 U.A.W. workers employed by the three automakers are on strike. The stoppage affects two plants owned by G.M., two owned by Ford, and one owned by Stellantis, as well as the 38 spare-parts warehouses owned by G.M. and Stellantis.The automakers have offered wage increases of more than 20 percent over four years. They have also agreed to shorten the time — to four years from eight — that it takes a new worker to rise up from the entry-level wage of about $17 an hour to the highest-level wage of $32 an hour.The union is pushing for greater wage increases, noting that raises over the last 15 years have not kept pace with inflation. It is also demanding the companies provide pensions for more workers, pay the cost of retiree health care, and convert temporary employees into permanent staff. More

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    Amid Strikes, One Question: Are Employers Miscalculating?

    UPS, the Hollywood studios and the Detroit automakers appear to have been taken aback by the tactics and tougher style adopted by new union leaders.The list of gains that the Hollywood writers secured to end a nearly five-month strike with studios once seemed ludicrously ambitious: not just wage increases, but also minimum staffing levels for shows, new royalties on successful series and restrictions on outsourcing writing duties to artificial intelligence.Yet far from an anomaly, the writers’ deal was the latest high-profile labor standoff that seemed to produce substantial gains for workers, and to suggest that they have more leverage than in the past.United Parcel Service employees won large pay increases for part-timers by pushing the company to the brink of a strike, while the lowest-paid academic student employees at the University of California won salary increases of more than 50 percent after a monthlong strike affected thousands of students.Given the unions’ apparent bargaining power and the economic costs to a prolonged work stoppage, the question arises: Why wouldn’t management make its eventual concessions more quickly?The answer, many union and management experts say, is that employers are increasingly miscalculating — acting from a template that applied in previous decades, when employees had little leverage, and underestimating the frustration and resolve in the postpandemic work force.“Psychologically, it’s a big shift: They’ve been in control. They have been able to tell their representatives to go and get concessions on X and Y, to make sure the wage increase is modest,” said Thomas Kochan, an emeritus management professor at the Massachusetts Institute of Technology, referring to corporate executives.“Now, they have to change their expectations internally,” Dr. Kochan added. “They have a lot of work to do.”In example after example, executives appear to have been taken aback by unions’ new, more assertive leaders and their success at rallying members and the public, as well as the ineffectiveness of the employers’ traditional bargaining approach.Sean O’Brien, the Teamsters president, right, attacked UPS over what the union referred to as “part-time poverty” jobs.Jenna Schoenefeld for The New York TimesIn Hollywood, the Alliance of Motion Picture and Television Producers, which represents entertainment companies in negotiations with writers, directors and actors, has frequently tried to forge a deal with one of the three guilds, then push the other two to accept similar terms.That appeared to be the group’s strategy this year as well: After the writers went on strike in May, the alliance reached a deal with directors the next month. But any hope that the writers would be isolated collapsed when SAG-AFTRA, the union representing more than 150,000 actors, went on strike in July.“The playbook was clearly outdated,” said Peter Newman, a longtime independent producer who heads a dual-degree master’s program in business and fine arts at New York University’s Tisch School of the Arts.Still, Mr. Newman said, the strikes saved the studios hundreds of millions of dollars on shows in the short term as Wall Street was pressuring them to cut costs.The producers’ alliance declined to comment for this article.In Detroit, the three major U.S. automakers had grown accustomed to closed-door negotiations with the United Automobile Workers union, in which the parties did not disclose the potential terms until they reached an overall agreement.But in the run-up to this year’s mid-September strike deadline, the union’s new president, Shawn Fain, appeared to wrong-foot executives at Ford Motor, General Motors and Stellantis — which makes the Chrysler and Jeep brands — by disclosing and deriding the companies’ offers. In one case, he literally threw a Stellantis proposal in the garbage.Automakers have expressed impatience with the leadership style of Shawn Fain, center, the United Automobile Workers union leader.Cydni Elledge for The New York TimesThe companies’ responses — a Stellantis executive sent employees a letter saying that “theatrics and personal insults will not help,” while Ford and G.M. have also expressed impatience — may have further galvanized members and built public support. Polls have found that the public supports the autoworkers over the companies by large margins, and that the margins increased after the U.A.W. began a limited strike.“It doesn’t seem like they were prepared for the direction he was headed with his public comments,” David Pryzbylski, a labor lawyer who represents employers at Barnes & Thornburg, said of the reaction to Mr. Fain. “The way they have responded may have escalated it further versus letting it die out.”Stellantis declined to comment. Auto industry executives argue that they have made historically generous offers, and that they haven’t been put off by Mr. Fain’s outspokenness so much as what they say are the showmanship and the unrealistic expectations he has created.Mr. Pryzbylski emphasized that it was too early to tell whether the landscape had tilted to labor’s advantage for the longer term, or just temporarily. The outcome of the U.A.W. strike remains unclear, and the workers’ resolve could diminish if the strike drags on for weeks. Talks between the sides are ongoing.Other management-side lawyers said that while a handful of executives might have miscalculated of late, there was no broader trend in this direction. They say that employers remain capable of assessing and acting in their self-interest, and that unions are equally capable of miscalculating.“People are sophisticated on both sides,” said Marshall Babson, a longtime management-side lawyer and former member of the National Labor Relations Board. “From my experience, good negotiators don’t get distracted by pyrotechnics.”But in many cases, what has changed is not so much the bluster from union leaders as their willingness to follow through — a potentially disruptive shift after years of often empty threats.When Sean O’Brien, the Teamsters president, ran to succeed his longtime predecessor, James P. Hoffa, in 2021, he promised to raise wages for part-time workers at UPS, many of whom had long felt shortchanged.And yet, according to two people close to the negotiations, the company seemed caught off guard when talks broke down over the issue on July 5 — Mr. O’Brien’s initial deadline.Mr. O’Brien and the union spent the next few weeks publicly attacking UPS over what the union referred to as “part-time poverty” jobs before the company agreed to hourly wage increases for part-timers of more than $7.50 over the life of the new five-year contract.The chief executive of UPS, Carol Tomé, said the company had expected contract talks this year “to be late and loud, and they were.”Jenna Schoenefeld for The New York TimesShortly after a tentative deal was reached in late July, the UPS chief executive, Carol Tomé, said the company had expected the negotiations “to be late and loud, and they were.” The company declined to comment for this article.Part of the challenge for employers is public opinion: Confidence in big business is at its lowest point in decades, according to Gallup, while approval of labor unions is close to its highest. Mr. Fain and Mr. O’Brien appear to have devised their public campaigns to press this advantage.Unions also appear to have benefited from new methods of keeping members focused on shared goals — as when writers erupted on social media over the news that the talk show hosted by Drew Barrymore would return before the strike ended. (Ms. Barrymore soon reversed course.)And rank-and-file members appear to have become more committed to their leaders’ negotiating strategy as unions have become more democratic and involved members more in the push for a contract, said Jane McAlevey, a longtime labor organizer and scholar.But perhaps most important, employers seem to be underestimating the determination of workers, who believe they have little to lose from striking amid rising prices and fundamental shifts in their industry that have sometimes made their jobs more precarious.A few weeks after the writers walked off the job this spring, Mae Smith, a strike captain and former writer on the Showtime series “Billions,” predicted in an interview that the economic pain of a protracted strike against the studios would not discourage the writers because “unfortunately they’ve been training us to live off very few months of work for a long time.”The prediction largely held, in something of a departure from the 2007 writers’ strike. Back then, when streaming felt like a distant threat, there were some splits within the Writers Guild over how aggressive to be, said Chris Keyser, a past president of the union.This time, the writers appeared particularly unified by the looming role of artificial intelligence, an issue on which the studios largely refused to engage for months.“A number of C.E.O.s, when we talked to them later about A.I., said that was a mistake,” recalled Mr. Keyser, a co-chair of the writers’ negotiating committee this year.(The writers did compromise on some key issues in the end — there is no ban on studios’ use of scripts they own to train A.I. tools, though the guild reserved the right to challenge instances of this.)Dr. Kochan of M.I.T. said the concession from studios on artificial intelligence was especially significant because it highlighted another shift: employers’ diminished ability to limit negotiations to conventional issues like wages and benefits while often reserving the right to control other aspects of the job, like technology adoption.“For decades, management has been able to say: ‘These are our decisions, our prerogatives. It’s none of your business,’” he said.With the breakthrough on artificial intelligence, he added, “this is a new day — that’s why the writers’ strike was so important.” More