It’s okay to call activist investors corporate raiders. At least that’s the view of Jeff Gramm, the author of “Dear Chairman: Boardroom Battles and the Rise of Shareholder Activism.” Gramm talked to The Deal for its Activist Investing Today podcast about his book, why he launched a proxy fight at Texas Restaurant chain Luby’s and what he thinks about CEO pay packages.“ One big theme of the book is that these shareholder activists through history are kind of all the same,” Gramm said. “They are economic actors out to seek a buck on their investments in public companies and they use engagement with public companies as a means to generate their alpha.”