Lease: Historically, leases served many purposes, and the regulation varied according to intended purposes and the economic conditions of the time. Leaseholds, for example, were mainly granted for agriculture until the late eighteenth century and early nineteenth century, when the growth of cities made the leasehold an important form of landholding in urban areas. The modern law of landlord and tenant in common law jurisdictions retains the influence of the common law and, particularly, the laissez-faire philosophy that dominated the law of contract and the law of property in the 19th century. With the growth of consumerism, the law of consumer protection recognised that common law principles assuming equal bargaining power between parties may cause unfairness. Consequently, reformers have emphasised the need to assess residential tenancy laws in terms of protection they provide to tenants. Legislation to protect tenants is now common