In this work we propose a new model for the analysis of telecommunications (Tlc) networks production. This represents an extension of the fund-flow model by Georgescou-Roegen originally applied to the manufacture and agriculture sectors. The adopted framework enables us to describe the...

We propose a new decomposition of the return on investment (ROI) – the main accounting measure of firm profitability – to evaluate the contributions of its three components: the return on sales (ROS), the utilization (rotation) of working capital (RCC), and the utilization (rotation) of...

Spatial and Temporal Time Series Conversion - A Consistent Estimator of the Error Variance-Covariance Matrix. Abstract: We focus on the problem of time series conversion from low to high frequency satisfying the twofold temporal and spatial constraint. We offer a simple solution to...

<em>Alcune proprietà dei cicli industriali regionali italiani in una prospettiva storica</em> <br/><br/> Keywords: regional business cycle, dynamic factor model, regional development model <br/><br/>Parole chiave: analisi del ciclo regionale, modello fattoriale dinamico, modello di sviluppo Territoriale

This paper presents a simple macroeconomic model in which a fall in money wages has contractionary effects on output and employment. As it is well known this argument in itself is not novel: the contractionary effect of a rise in the mark-up is a standard result in Kaleckian models of imperfect...

This paper tackles the problem of the creation and use of information by a firm managing telecommunications networks with particular reference to costs and their connection to price and investment strategies. This problem is generally addressed by means of production and cost analysis models...