Nowadays of increasing functioning of network competitors, the Portuguese Small and Medium Enterprises (SME) of the Textile and Clothing Industry are facing new digital challenges. In order to strengthen their market power and reduce their dependence on foreign subcontractors, they should create...

We model a homogeneous product environment where identical e-retailers endogenously engage in both brand advertising (to create loyal customers) and price advertising (to attract 'shoppers'). Our analysis allows for 'cross-channel' effects; indeed, we show that price advertising is a substitute...

We model a homogeneous product environment where identical e-retailers endogenously engage in both brand advertising (to create loyal customers) and price advertising (to attract 'shoppers'). Our analysis allows for 'cross-channel' effects; indeed, we show that price advertising is a substitute...

This paper examines the problem of appropriately specifying and estimating the money demand function in the presence of adaptive expectations and partial adjustment mechanisms. The paper demonstrates the difficulty of interpreting distributed lag reduced form representations of the monetary...

This paper examines a broad set of alternative temporal cross- section specifications of the demand for money as a means of estimating the degree of substitution between demand deposits and other liquid assets. Despite differences in data bases, model specifications and estimation techniques,...

This paper examines the combined influences of detrending and time aggregation on the measurement of business cycles. The approximate band- pass filter of Baxter and King (1999) performs relatively well in the sense that it retains the basic shape of disaggregate spectra and cospectra when...

In recent years, wavelets have become widely used in physics, engineering, and mathematics. They have been used for signal processing, image processing, numerical computation, and data compression. Wavelets have not, however, been used very much in the fields of Economics, Econometrics, and...

We present several Markov chain Monte Carlo simulation methods that have been widely used in recent years in econometrics and statistics. Among these is the Gibbs sampler, which has been of particular interest to econometricians. Although the paper summarizes some of the relevant theoretical...

The essential idea of equilibrium search models of labour market behaviour is that wage policy matters. In contrast, the stylized neoclassical competitive model predicts that firms paying a wage above the competitive equilibrium will disappear; those offering less will attract no workers. The...