The early contributions of John Muellbauer centred on accurately modelling household behaviour and measuring welfare at the microeconomic level.

His interests later evolved towards a greater focus on macroeconomics, extending beyond household economics. The bulk of his work has entailed crafting well- grounded empirical implications of consumer and macroeconomic theory, then reconciling and interpreting reliable empirical patterns with sensible modifications of neoclassical and efficient market theory to account for credit constraints, uncertainty and open economy considerations.

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