Ow do changing approaches to geography affect the knowledge produced about development in the global south over time?

How do changing approaches to geography affect the knowledge produced about development in the global south over time?
Discuss this while looking at these books and journals only.
Development in the Global South
Frank, A. (1966) The development of under-development. Monthly Review, September, pp. 17-30.
Gould, P.R. (1970) Tanzania 1920-63: The Spatial Impress of the Modernization Process. World Politics 22 (2), 149-170.
Jones, P.S. (2000) Why is it alright to do development over there but not here? Area 32, 237–41.
Lange, M. (2004) British colonial legacies and political development. World Development, 32, 905–22.
Discuss positivism, structalists and Marxism
-how do the approaches taken by the authors influence the argument and knowledge presented?
-what are the advantages and limitations of each of the approach taken and the knowledge produced.
have the approaches taken to and the knowledge produced about this topic changed over time and how is it tied to broader shifts in approached to human geography

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