Billionaire hedge fund manager Bill Ackman has warned that New York City Mayor Zohran Mamdani's progressive economic agenda could lead to "disaster" for the city. Ackman, a prominent conservative voice on Wall Street, argued in a recent interview that New York's affordability crisis is a result of past policy failures, not capitalism, and asserted that "socialism is a disaster."
Ackman's remarks come amid escalating tensions between Mamdani and the city's business community. This week, Mamdani dismissed the advisory board of the Mayor’s Fund to Advance New York City, which included executives from major firms like Blackstone and Citigroup, as well as the Real Estate Board of New York. The fund has historically relied on private sector contributions to support city programs, raising over $100 million for 9/11 rescue worker families and $54.5 million during the COVID-19 pandemic. City Hall stated Mamdani intends to establish a new board composed of individuals directly affected by city policies.
One of Mamdani's key proposals that drew criticism from Ackman is a plan to freeze rents on approximately one million rent-stabilized apartments. Ackman contends this policy would disincentivize investment in housing, thereby exacerbating the city's existing housing shortage. He also criticized the mayor's proposal for city-owned grocery stores, suggesting that government intervention is not the solution to rising food costs.
"Housing costs are so high because left-wing mayors have made it very difficult for developers to build here, and Mamdani, by freezing rents, is just going to make the problem worse," Ackman told Fortune. He added that policies making it difficult to build and preventing landlords from recovering renovation costs can lead to units being removed from the market, citing an estimated 60,000 units in New York currently off-market due to rent regulations.
Ackman also took issue with Mamdani's focus on high-profile business leaders. He mentioned Citadel CEO Ken Griffin, who had clashed with Mamdani over the city's newly enacted pied-à-terre tax. Griffin had previously indicated he might reduce his investment in New York after Mamdani filmed a social media video promoting the tax in front of Griffin's penthouse. Ackman argued that attracting individuals like Griffin, whose substantial real estate purchases can bolster the economy through construction jobs and tax revenue, is crucial for the city.
Despite Griffin's potential pullback, Vornado Realty Trust recently announced plans to proceed with a $4.5 billion skyscraper development at 350 Park Ave., intended to house Citadel's offices. Ackman suggested that Mamdani should instead adopt pro-market policies to foster growth. "The system can work well," he stated, emphasizing the importance of top earners contributing a significant share of taxes without discouraging businesses from locating in the city.