Which tech billionaires attended Trump’s inauguration? Take our business and investing news quiz for the week ending Jan. 24

d. Mr. Zuckerberg, Mr. Bezos, Mr. Arnault and Apple chief executive Tim Cook. Yep, the billionaire class was well represented at the inauguration. The near-perfect attendance by tech leaders was particularly impressive and a sign of how the sector has swung into line behind Mr. Trump.

c. The new $TRUMP token and first lady Melania Trump’s $MELANIA token appear to be blatant conflicts of interest since they allow anyone who wants to curry favour with the President to put money into his pocket by buying the tokens. Even the companies behind the tokens say they are not investments but an “expression of support.”

b. He ran Silk Road, an online marketplace used by drug dealers. The digital black market was used to buy and sell drugs and conduct other illegal activities, typically with bitcoin. Mr. Ulbricht isn’t what you would call a model citizen – among other things, he solicited the killings of several people he saw as threats to Silk Road – but he is seen by some crypto advocates and libertarians as a victim of overreaching big government.

b. A unionization drive. While Amazon did not explain the rationale behind the move, it is difficult not to see a link between its decision to close the warehouses and recent unionization efforts. In May, a warehouse in Laval, Que., became the first Amazon site in Canada to unionize. In October, a provincial tribunal ruled against Amazon, which had argued that the process by which the workers unionized was unlawful.

a. Britain. Mr. Dalio told the Financial Times that Britain could be heading toward a situation where it has to borrow more and more money to service its rising interest costs.

a. The S&P 500 Index in the U.S. and Europe’s Stoxx 600 Index. The S&P 500 Index hit an intraday high on Wednesday, driven higher by excitement over artificial intelligence. More surprisingly, the Stoxx 600 Index of European stocks also hit an intraday high as investors brushed off tariff concerns.

a. Brookfield Asset Management. Mr. Carney had been serving as Brookfield’s board chair. He also resigned from the boards of financial-information giant Bloomberg LP and payments processor Stripe Inc.

c. In the next six months. Canada Post said it expects to exhaust its cash reserves in the first half of this year and is working with the federal government to explore its options. The letter carrier has been hit by high labour costs and dwindling use of its letter-mail services.

d. A plan to build artificial-intelligence infrastructure. Mr. Trump proudly announced this week that a group of private-sector companies, including OpenAI, Softbank and Oracle, are going to invest up to US$500-billion in building data centres and other AI infrastructure in the United States. The never-shy Mr. Trump thundered that the joint venture, dubbed Stargate, represented “a resounding declaration of confidence in America’s potential under a new President.” However, Mr. Trump’s “first buddy” Elon Musk was quick to take potshots at the companies in the Stargate group, writing, “They don’t actually have the money.”

a. U.S. single-family homes. Brookfield acquired Divvy Homes, a U.S. rent-to-own landlord, and its portfolio of single-family homes.

d. 60 per cent. Canada’s oil is well suited for U.S. markets, because Alberta’s oil sands produce the heavier crude that American refineries are designed to use. In contrast, newer oil fields in Texas and New Mexico pump out light, sweet crude.

b. More than 300 million. Netflix signed up a record 18.9 million subscribers in the final quarter of 2024 and now has more than 300 million subscribers worldwide. Its recent surge has been aided by its bold move into live sports content. It televised a celebrity boxing match between Jake Paul and Mike Tyson and streamed National Football League games on Christmas day.