We investigate the direct connection between the uncertainty related to estimated stable ratios of stock prices and risk and return of two pairs trading strategies: a conditional statistical arbitrage method and an implicit arbitrage one. A simulation-based Bayesian procedure is introduced for...

The long-run component of the Colombian unemployment rate is estimated for the last twenty years. According to the results, the main determinants of the permanent component of the unemployment rate are the real hourly wage, the non-wage labor costs and the rate of capital accumulation. Given the...

This paper estimates an asymmetric error correction model to analyse the dynamic behaviour of the Colombian unemployment rate. We find evidence that wages above their long- run equilibrium level do increase unemployment, but wages below this level do not reduce it.