Analysis of new comparable series on output and employment between 1900 and 2000 for Argentina, Brazil, Chile, Colombia, Mexico, and Venezuela indicates that productivity growth was significantly higher and less volatile during the middle decades of the century than in the opening and closing...

The causes of the USA's exceptional economic performance are investigated by comparing American wages and prices with wages and prices in Great Britain, Egypt, and India.  Habakkuk's views on the causes of American industrial pre-eminence are reassessed.  While the USA had abundant natural...

This paper uses the adoption and invention of the spinning jenny as a test case to understand why the industrial revolution occurred in Britain in the eighteenth century rather than in France or India.  It is shown that wages were much higher relative to capital prices in Britain than in other...

The commercial value of basic knowledge depends on the arrival of follow-up developments mostly from outside the boundaries of the inventing firm. Private returns would depend on the extent the inventing firm internalizes these follow-up developments. Such internalization is less likely to occur...

It is shown that spillovers can enhance private returns to innovation if they feed back into the dynamic research of the original inventor (Internalized spillovers), but will always reduce private returns, if the original inventor does not benefit from the advancements other inventors build into...

A classroom model of global warming, fossil fuel depletion and the optimal carbon tax is formulated and calibrated. It features iso-elastic fossil fuel demand, stock-dependent fossil fuel extraction costs, an exogenous interest rate and no decay of the atmospheric stock of carbon. The optimal...

The optimal reaction to a pending climate catastrophe is to accumulate capital to be better prepared for the disaster and levy a carbon tax to reduce the risk of the hazard by curbing global warming. The optimal carbon tax consists of the present value of marginal damages, the non-marginal...

Optimal climate policy should act in a precautionary fashion to deal with tipping points that occur at some future random moment. The optimal carbon tax should include an additional component on top of the conventional present discounted value of marginal global warming damages. This component...

We propose a simple structural model of the upstream sector in the oil and gas industry to study the determinants of costs with a focus on its relationship with the price of oil.  We use the real oil price, data on global drilling activity and costs of drilling to estimate a three-dimensional...

The global response to a catastrophic shock to productivity which becomes more imminent with global warming is to have carbon taxes to curb the risk of a calamity and to accumulate precautionary capital to facilitate smoothing of consumption.  Our multi-region model of growth and climate change...