Kevin Hoover is, of course, correct. Meade was first and Hansen &
Samuelson's textbooks were both pathbreaking - as textbooks go - and very
popular. Indeed, in Greece in the 70s Ackley, Hansen and Samuelson were
translated into Greek, while Branson was not. The reason I have mentioned
Branson's textbook was that is was totally structured around the IS-LM
concept. All chapters on the monetary or the real sector ended up in such a
way that they would be analytically incorporated in the IS-LM model.
Nicholas J. Theocarakis