New-product launches and patent expirations are the key growth variables right now.
2.
They favored a model that replaced the exogenous growth variable ( unexplained technical progress ) with a model in which the key determinants of growth were explicit in the model.
3.
As for the remaining funds, if you like the variable annuity idea, I suggest you put $ 50, 000 each into Vanguard's Balanced variable annuity and Vanguard's Mid-Cap Index variable annuity, and $ 25, 000 each into Vanguard's Small Company and Growth variable annuity accounts.