Will people return to packed convention centers?

<p>We&#8217;ll start getting answers to that question this week from Las Vegas, where the World of Concrete trade show for the construction industry is kicking off. Las Vegas did $11 billion in trade show and convention business back in 2019. Also, the annual price tag on a newly approved drug to treat Alzheimer&#8217;s is about $56,000, even as there are lingering questions about the drug’s effectiveness in slowing the progression of disease. And, an update on a proposed law in China seen as a response to U.S. sanctions.</p>