“…The share of the value added by construction as a percentage to GDP was found to be around 3e5% for developing countries and 5e8% for more developed countries over the period of 1955e1965 (Turin, 1969). The results were later confirmed by many other studies such as those completed by Edmonds and Miles (1984), Wells (1985Wells ( , 1986, Ofori (1988), Low and Leong (1992), and Chen (1998). Although these studies focused more on the static view of the close relationship between construction activity and economic growth, these studies did note that construction's role in the economy would decline when the economy reaches the middle income stage (Strassmann, 1970) or when the volume of construction products was sufficient to raise the productive capacity of the economy at a steady growth rate (Wells, 1986).…”