For a sample of 210 Swiss publicly listed firms we analyse the characteristics of all 1678 directors in the year 2003 in order to investigate how board members' nationality and gender interact with directors' level of independence, number of other directorships and demographic characteristics. Our results suggest that whereas foreign directors tend to be more independent, women directors are more likely to be affiliated to firm management through family ties and that foreign directors hold significantly lower numbers of directorships at other Swiss boards. Female and foreign directors also differ in terms of educational background, educational level, age and board tenure. Some of our gender diversity findings are different from previous research. We conclude that in order to manage diversity on corporate boards it is imperative to understand the characteristics, qualifications and affiliations that these directors bring to the boardroom and that it is important to take national circumstances into account rather than relying on research results from other countries. Copyright (c) 2007 The Authors; Journal compilation (c) 2007 Blackwell Publishing Ltd.

This article assesses the corporate governance-related antecedents of nomination committee adoption, and the impact of nomination committees’ existence and their composition on board independence and board demographic diversity. We conducted a longitudinal study of board composition amongst 210 Swiss public companies from January 2001 through December 2003, a period during which the Swiss (Stock) Exchange (SWX) introduced new corporate governance-related disclosure guidelines. We find firms with nomination committees are more likely to have a higher number of independent and foreign directors, but not more likely to have a higher number of female board members. Further, the existence of nomination committees is associated with a higher degree of nationality diversity but is not related to board educational diversity. We also find that nomination committee composition matters in the nomination of independent and foreign, but not of female directors. Our results suggest that understanding different board roles and composition require a multi-theoretical approach, and that agency theory, resource-dependence theory and group effectiveness theory help to explain different aspects of board composition and effectiveness. Finally, the article discusses the concept of diversity and appropriate ways to study diversity in a boardroom context. Copyright Springer 2006board demographic diversity, board independence, nomination committees,