By applying audit firm industry market share measure as proxy for audit firm industry expertise or specialisation,
the focus in this study is on trends in industry specialisation from 1999 to 2002. With data coming from annual reports of companies listed at the Kuala Lumpur Stock Exchange (KLSE – now, Bursa Malaysia) and industry
specialists defined as market leaders with market share greater than 20 percent of audit services (in terms of the
number of clients) within a client specific industry, it is found that Ernst and Young specialising in construction and
plantation, KPMG in industrial products, PricewaterhouseCoopers in finance and Arthur Andersen in finance,plantation, technology and trading/services
