In this paper, we show the inability of a recent average treatment effect estimator (ATE) to catch up the asymptotic semiparametric efficiency bound of Hahn (1998) although it minimises the mean squared error. Additionally, we propose the use of a minimum variance unbiased uniformly estimator of...

This paper examines the empirical relationship between CPI, oil prices, stock market and unemployment in EU15 using a new computational approach. In particular, we propose a novel approach to train the well-known vector autoregressive (VAR) model using a particle swarm optimisation (PSO) method....

Traditionally, univariate time-series models have largely dominated forecasting for international tourism demand. In this paper, the ability of a genetic program (GP) to predict monthly tourist arrivals from UK and Germany to Balearic Islands, Spain is explored. GP has already been employed...

This paper examines the relationship between the efficiency of China banks and its share price performance. Our analysis consists of three parts. First, we calculate the annual share price returns of the banks for each year between 1997 and 2006. Then we employ the data envelopment analysis...

The year 1991 is the year of U-turn for economic policies in India. The process of new economic reforms, started in full sway in this year, has affected significantly, more or less, every sector of the economy. The present paper tries to find out changing substitutability amidst capital and...

In an insurance company, the risk process estimation and the estimation of the ruin probability are important concerns for an actuary: for researchers, at the theoretical level, and for the management of the company, as these influence the insurer strategy. We consider the evolution over an...

This paper compares the performance of a wide range of approaches to testing the martingale difference hypothesis in economic and financial time series. An extensive Monte Carlo experiment is conducted to evaluate and compare the alternative tests under a martingale difference null hypothesis,...

The main aim of this paper is to predict the Aframax tanker charter rate index by using methods from non-linear analysis especially from chaos theory as is the method of false nearest neighbours (FNN). This is the result of the new emerging field of econo-physics which mainly consists of...

This paper shows a new macro-econometric approach to the NATREX model of the equilibrium real exchange rate. Many of the models in the literature are based upon anticipations, monetary policy, and speculative capital movements. The NATREX model denotes what are the fundamental determinants of...

The main objective of this paper is to provide a new insight into the possibility of monopolising a three-firm industry through acquisition of rivals in the absence of restrictions imposed by the antitrust authorities. The dynamic model of monopolisation under Cournot-type rivalry among...