9 A similar specification has been used by Masters and McMillan (2001), who consider frost frequency as a proxy variable for the potential impact of geography (or agricultural ‘technology’) on development.
9 A similar specification has been used by Masters and McMillan (2001), who consider frost frequency as a proxy variable for the potential impact of geography (or agricultural 'technology') on development.
9 A similar specification has been used by Masters and McMillan (2001), who consider frost frequency as a proxy variable for the potential impact of geography (or agricultural 'technology') on development.
9 A similar specification has been used by Masters and McMillan (2001), who consider frost frequency as a proxy variable. For the potential impact of Geography (or agricultural 'technology') on development.