In this paper we consider the classical newsvendor model with profit maximization. When demand is fully observed in each period and follows either the Rayleigh or the exponential distribution, appropriate estimators for the optimal order quantity and the maximum expected profit are established...

This paper considers the classical Newsvendor model, also known as the Newsboy problem, with the demand to be fully observed and to follow in successive inventory cycles one of the Exponential, Rayleigh, and Log-Normal distributions. For each distribution, appropriate estimators for the optimal...

In this study we examine in covariance stationary time series the consequences of constructing confidence intervals for the population mean using the classical methodology based on the hypothesis of independence. As criteria we use the actual probability the confidence interval of the classical...

In simple random sampling, the basic assumption at the stage of estimating the standard error of the sample mean and constructing the corresponding confidence interval for the population mean is that the observations in the sample must be independent. In a number of cases, however, the validity...

This paper considers the classical newsvendor model when demand is normally distributed but with a large coefficient of variation. This leads to observe with a non-negligible probability negative values that do not make sense. To avoid the occurrence of such negative values, first, we derive...

In this paper we show that the random walk model with drift behaves like an ARIMA (0,2,1) when its parameter θ is greater but close to –1. Using the random walk for predicting future values of an ARIMA (0,2,1) process, we find out that when θ is not so close to –1, the performance of the...

Manufacturing Purchasing Managers Index (PMI) has been increasingly used by various central banks for assessing the direction and strength of economic activity. One of the sub-indices or component level information provided by PMI is that of industrial input and output prices trends as surveyed...

The paper attempts to analyse the asymmetric effects of money supply and policy rate shocks in India using quarterly data from 1996-97Q1 to 2011-12Q4. It finds that both the shocks impact real output growth and inflation in the short-run, but have a differential impact among components of...

The paper attempts to analyse asymmetric effects of monetary policy in India using quarterly data from 1996-97Q1 to 2011-12Q4. It finds that an unanticipated hike and an unanticipated cut in policy rate have a symmetric impact of on real GDP growth, but differentially impact the components of...

This paper examines the behaviour of exchange rate pass-through to domestic prices in India after the reforms initiated in the early 1990s. Unlike observed in several countries, it finds a rise in exchange rate pass-through to domestic prices until recent years. Besides economic factors...