Who among the followings enunciated four stages in the evolution of space economy? 

The correct answer is John Friedmann 

Important PointsThe person among the following who enunciated four stages in the evolution of space economy is "1) John Friedmann".

John Friedmann is a noted planner and geographer known for his work on regional development, urbanization, and spatial economic theory.

• His stages of spatial economic development outline how economic activities and the organization of space have transformed over time due to changes in technology, economic systems, and societal structures.
• His approach focuses on the role of central places (such as cities) in organizing the economy and how this role has evolved over time.

  Additional Information

Karl Marx:

• A philosopher, economist, and sociologist, Marx's work mostly focused on class struggle, capitalism, and the theory of historical materialism.
• He didn't specifically outline stages of spatial economic evolution.

Ronald F Abler:

• A geographer and former executive director of the American Geographical Society, Abler has contributed to several areas of geography, but he isn't known for outlining stages of spatial economic evolution.

August Losch:

• An economist and geographer, Losch is known for his work on location theory and the spatial organization of industries.
• While his work is related to spatial economics, he didn't propose a four-stage model of its evolution