My thesis for investing in BJ’s Restaurants ( BJRI ) is that it is making its restaurants more efficient, so its bottom line can still grow even if it doesn’t add new locations in the near future. And I expect its margins toI am a freelance business writer. I formerly wrote articles for the Motley Fool Blogging Network, where I won several editor's choice awards. After that, I wrote articles for the main Motley Fool site. I typically focus on restaurants, retailers, and food manufacturers, considering both ...