As Problem 8.9, for

(a) Investment,

(b) The pattern of UK exports (i.e. which countries they go to),

(c) Attendance at football matches.

Problem 8.9

How would you estimate a model explaining the following variables?

(a) Airline efficiency,

(b) Infant mortality,

(c) Bank profits.

You should consider such issues as whether to use time-series or cross section data; the explanatory variables to use and any measurement problems; any relevant data transformations; the expected results.