"To investigate the present position in which tenants of shops are placed at the termination of their tenancies, and to consider and advise—(1) whether tenants should be given a right to renewal of their tenancies and if so the terms (particularly as to rent and duration) on which any such renewal should be granted; (2) whether provision should be made for giving to tenants a right to compensation for improvements and goodwill on the termination of their tenancies; and (3) what machinery should be provided to carry into effect any recommendations made under the two preceding heads."