| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Innovating at the Top: How Global CEOs Drive Innovation for Growth and Profit | 978-0-230-57573-8 (0-230-57573-0) | 2008 | Roland Berger · Soumitra Dutta · Tobias Raffel | |
| The Inequality Puzzle: European and US Leaders Discuss Rising Income Inequality | 978-3-642-15803-2 (3-642-15803-X) | 2010 | Roland Berger · David Grusky · Tobias Raffel · Chris Wimer |