Your report ("Sturgeon drums up vision for future of Scotland", The Herald, November 27) states that the new First Minister has promised a "radical programme" of reform so that Scotland's land can be "an asset that will benefit the many, not the few".

A truly radical approach to Scotland's land would start from the premise that the value of land is a community-created value and as such should be the primary source of state revenue. Its greatest value by far lies not in the sporting estates on which Ms Sturgeon has so far focused attention. Rather, it is in our great cities and towns where most of us live and work and where we find the best infrastructure, social amenities, and employment opportunities.

We concentrate our demand for land where it best meets our needs. The pressure of demand against a fixed and immovable supply gives land its greatest value in the most desirable neighbourhoods and where work and enterprise are most productive. As understood by great economists such as Adam Smith and David Ricardo, the price of "god-given" land represents a pure surplus or monopoly income over its zero cost. When growth of incomes drives up demand, supply cannot increase to reduce the price. Land is unique in this respect and when its value is taxed there are no adverse supply-side effects.

The owners gain from exclusive holding of the land on which those buildings sit, or from rents. These rents are unearned incomes that should be our equal birthright. Governments could then relieve us of the burden of destructive taxes on earned incomes and release our energies to create a more dynamic economy and just society. It would also remove the (literally) underlying cause of the destructive cycles of speculative boom and bust in our real estate markets.

Professor Roger Sandilands

35 Banavie Road

Glasgow.