We introduce decay in produced capital and exogenous technical progress to the recent "Solow Model" of Asheim et al. with population growth and observe the possible collapse of the economy given too high a rate of decay. "Enough" technical progress can restore sustainable per capita consumption.

We do double-entry national accounting and incorporate zero profit arbitrageconditions (Euler equations) for different types of capital, includingnatural capital. In non-balanced growth, capital gains terms for capitalgoods appear in the income side of the accounts. Depreciation terms appearon...

We set out dollar-valued net national product for an economy with a wasting essential stock (oil deposit). We take up `maintaining capital intact' and locally unchanging consumption. The percentage change in `net investment' or `genuine savings,' relative to the market rate of interest, denotes...

We investigate an intertemporal model with an exhaustible resource inflowwhich exhibits a single peak in consumption on the path of development. Thepeak follows the date at which net investment is zero. The ``top'' ofconsumption is higher and flatter and peaks later when the discount rate...