The Role of Retail Prices and Promotions in Determining Cigarette Brand Market Shares

The Lagrange Multiplier Test and its Applications to Model Specification in Econometrics

1980 • 7,455 citations

Estimators for Seemingly Unrelated Regression Equations: Some Exact Finite Sample Results

1963 • 650 citations

Ashes to Ashes

1996 • 94 citations

The Tobacco Deal

1998 • 58 citations

Invariant Estimators for Market Share Systems and their Finite Sample Behavior

1988 • 8 citations

Modelling market shares by segments using volatility

1999 • 3 citations