creates jobs and improves the welfare of the people of Afghanistan," the WTO statement quoted Afghan President Ashraf Ghani as saying. Reviving the economy is just one of the challenges facing Ghani's unwieldy national unity government, which has come under growing pressure because of deteriorating security. On Wednesday he appealed for calm as one of the biggest demonstrations in years marched through Kabul, demand ing action after the beheadings of seven members of the ethnic Hazara minority. The WTO is set to expand from 161 to 164 members