HSEINV.DES year inv pop price linv lpop lprice t invpc linvpc lprice_1 linvpc_1 gprice ginvpc Obs: 42 1. year 1947-1988 2. inv real housing invest., millions $ 3. pop population, 1000s 4. price housing price index; 1982 = 1 5. linv log(inv) 6. lpop log(pop) 7. lprice log(price) 8. t time trend: t=1,...,42 9. invpc per capita invest., inv/pop 10. linvpc log(invpc) 11. lprice_1 lprice[t-1] 12. linvpc_1 linvpc[t-1] 13. gprice lprice - lprice_1 14. ginvpc linvpc - linvpc_1