The data file Japan Imports shows 35 quarterly observations from Japan on quantity of imports (y), ratio of import prices to domestic prices (x1), and real gross national product (x2). Estimate by least squares the following regression:
log yt = β0 + β1 log x1t + β2 log x2t + γ log yt-1 + εt
Write a report summarizing your findings, including a test for autocorrelated errors.