EARNS.DES year wkearns wkhours outphr hrwage lhrwage loutphr t ghrwage goutphr ghrwge_1 goutph_1 goutph_2 lwkhours Obs: 41 1. year 1947 to 1987 2. wkearns avg. real weekly earnings 3. wkhours avg. weekly hours 4. outphr output per labor hour 5. hrwage wkearns/wkhours 6. lhrwage log(hrwage) 7. loutphr log(outphr) 8. t time trend: t=1 to 47 9. ghrwage lhrwage - lhrwage[t-1] 10. goutphr loutphr - loutphr[t-1] 11. ghrwge_1 ghrwage[t-1] 12. goutph_1 goutphr[t-1] 13. goutph_2 goutphr[t-2] 14. lwkhours log(wkhours)