Understanding 'independence'

For years, independence has been held up as a desirable—even necessary—attribute of boards; the moot being that independent directors are a prerequisite if boards are to consider information objectively and make high quality decisions. In practice, the listing rules of most stock exchanges state that at least two directors must satisfy independence criteria, and many directors' institutes promote independence as a desirable attribute.

But does the presence of independent directors actually lead to improved business performance? Notable investor, Warren Buffett, has his doubts.

Buffett took the opportunity at the annual meeting of Berkshire Hathaway, an investment firm, to question the merit of appointing independent directors. He said that many independent directors cow-tow to the chief executive, an assertion that is tantamount to suggesting that the balance of 'power' and 'control' lies with the chief executive not the board. If this is correct, directors are not acting in the best interests of the company (as the law requires). Thus, independence becomes meaningless. 

Buffett's solution is to recommend that directors need to have skin in the game. But if they do, what is their motivation likely be? Will the holding of shares lead to directors becoming more effective?

Long-standing research(*) suggests that, as with other static attributes of boards (board size and the board's  'diversity' quotient are topical examples), structural (or, technical) independence per se provides little if any guarantee that board decisions will be of high quality, much less assurance that the board will be effective or that high performance will be sustained. Much storied cases, such as, HSBC (USA), Mainzeal (New Zealand), Carillion (UK) and CBA (Australia), amongst many others, make the point plain. 

If the board's role in value creation is not dependent on structural attributes (in any predictable sense), should independence be set aside? Not completely. Independence can be helpful, if directors think critically and  exercise both a strategic mindset and wisdom, as they seek to make sense of incomplete data in a dynamic environment. But even this proposal is limited: independence of thought (also called ‘diversity of thought’) is hardly a silver bullet. Better to pursue cognitive diversity, to ensure a range of different approaches to tackling problems. Context is crucial too: shareholders and boards must be careful not to fall into the trap of thinking about corporate governance or board effectiveness in deterministic or formulaic terms. 

If boards are to have any chance of exerting influence from the boardroom, directors need to embrace an holistic understanding of how best to work together as they assess information, make decisions and verify whether the desired outcomes of prior decisions are achieved or not. For this, the actions of boards (function) trumps what they look like (form). Emerging research suggests that board effectiveness has three dimensions, namely, the capability of directors (technical expertise, sector knowledge, wisdom, maturity);  what the board does when it meets (determine purpose, strategy and policy, monitor and supervise management, provide an account to shareholders and other stakeholders); and how directors behave (individually and collectively). 

(*) see Larcker & Tayan (2011) Corporate governance matters, for example.