The number of investors in the GCC member states amounted to 20,000; around 40,000 citizens of the GCC member countries possess real estates in other GCC countries; more than 550 stock companies have shareholders from different GCC countries and more than 1500 joint ventures among the GCC nationals. This came in a lecture delivered here yesterday by Dr. Abdulaziz Hamad Al-Owaisheq, Director General for International Economic Relations at the GCC Secretariat General. Dr. Al-Owaisheq stated that the GCC countries pay great attention to the experience of the European common market. The GCC common market has contributed to reducing the cost of production, increase of economic efficiency and increase of competition which leads to price falls.