Estimation in the first-order moving average model through the finite autoregressive approximation: Some asymptotic results

To estimate α in the model y_t = u_t+αu_t?1, we consider a proposal by Durbin (Biometrika, 1969). It consists in fitting an autoregression of order k to the data, and deriving from there an estimate α^. The probability limit and the variance of the limiting normal distribution of α^ are presented and discussed in detail, when the sample size T → ∞, but k remains fixed. The differences between the resulting values and those corresponding to the maximum likelihood estimator are exponentially decreasing functions of k. Several modifications of the estimator are discussed and found consistent, but asymptotically inefficient.     

Wirtschaftslehre der Unternehmung in Hauptgedanken ihrer theoretischen Begründung

Ohne ZusammenfassungGewidmet der Tschechischen Technischen Hochschule in Prag — dieser ältesten öffentlichen ingenieurwissenschaftlichen Schule Europas —zum 250-jährigen Jubiläum (1707 bis 1957) im festen Glauben an eine baldige Vereinigung aller Prager Hochschulen technischer Richtung in das organische Ganzeder Technischen Universität und in der Überzeugung von der Notwendigkeit der wirtschaftswissenschaftlichen Fakultät als eines unabtrennbaren Bestandteiles dieser Universität.     

Residential energy demand analysis: An empirical application of the closure test principle

In this paper a set of ten different single-equation models of residential energy demand is being analyzed, derived by the imposition of linear parameter restrictions on a fairly general autoregressive distributed lag (ADL) model. Residential energy consumption is assumed to be explainable by households' real disposable income, movements in the real price of energy, and the temperature variable ‘heating degree days’. In the empirical application, Austrian annual data for the period 1970 to 1992 are used. The main focus of the paper is on the control of the overall significance level of the tests based on the application of the closure test principle, introduced by Marcus, Peritz, and Gabriel (1976). The application illustrates nicely how one can, by defining a closed system of hypotheses, control the significance level α in supporting the search for a suitable specific model. The wide range of estimated elasticities, however, indicates that the estimation results depend strongly on the choice of the model specification.     

Hayek Reads the Literature on the Emergence of Norms

Hayek’s approach to cultural and institutional evolution has been frequently criticized because it is explicitly based on the controversial notion of (cultural) group selection. In this paper this criticism is rejected on the basis of recent works on biological and cultural evolution. The paper’s main contention is that Hayek employed group selection as a tool for the explanation of selection among several equilibria, and not as a vehicle for the emergence of out of equilibrium behavior (i.e., altruism). The paper shows that Hayek’s ideas foreshadowed some of the most promising developments in the current literature on the emergence of norms. JEL Classification: B31, B41     

Macroeconomic transitions and the transmission mechanism: Evidence from Turkey

This paper investigates changes to the macroeconomic transmission mechanism in Turkey following a major reform of monetary policy in the early 2000s. We use a Threshold VAR (TVAR) framework to test for and then estimate a model with endogenous transitions between regimes. We detect two regimes, with a clear transition between them in 2003–4. The pre-reform regime is characterized by high inflation, passive monetary policy and persistent responses to shocks. The post-reform regime is characterized by low inflation, active and credible monetary policy and markedly less persistent responses to shocks. Using a model that contains sufficient variables to capture diverse transmission mechanisms, working through the real exchange rate, domestic credit and monetary policy, we find evidence of sharp changes in transmission mechanisms. Post-reform, the response of Turkey to macroeconomic shocks has changed to be similar to those in other modern, market-orientated economies.     

Aid and Poverty in Africa: Do Well‐being Measures Understate the Progress?

Abstract: In the last 15 years international aid donors to Africa have shifted their focus dramatically toward health and education; the share of social sector support in total aid rose from 33 per cent to 60 per cent from 1990–94 to 2000–2004 alone. If this aid has been effective, it is unlikely to be captured in GDP or income poverty figures. This paper uses the Demographic and Health Survey at multiple points in time to explore changes in well‐being in ten sub‐Saharan African countries. It compares the evolution of both assets and health which are considered as the two main dimensions of well‐being. These dimensions are simultaneously estimated using the structural equation models with latent variables that have been developed in the psychometric literature. The comparisons of well‐being across time in each country are based on the stochastic dominance analysis. The main results suggest that assets and health have improved during the last two decades in most of these countries. A decline in assets is observed for three countries while health deteriorates in two countries. The reduced poverty appears to be explained less by the aid than other factors in most cases.     

Sustainable dressing: Consumers' value perceptions towards slow fashion

Slow fashion that improves with an increasing awareness of sustainability has changed consumers' value perception and purchasing behaviours. The aim of this study is to determine slow fashion dimensions that influence consumers' value perceptions for slow fashion products and to reveal the effects of the perceived value on consumers' intentions to purchase and willingness to pay higher prices. The sample includes 725 students pursuing higher education in Turkey and Kazakhstan. Exploratory and confirmatory factor analyses were used to specify the factor structure of the variables used in the research, and structural equation modelling was used to test the hypotheses. Data analysis showed that authenticity, locality, and exclusivity aspects in Turkey and equity, functionality, locality, and exclusivity aspects in Kazakhstan contributed to perceived customer value. Perceived customer value in both groups positively affects the intention to purchase and the willingness to pay higher prices. In addition, consumers who intend to purchase slow fashion clothing are willing to pay higher prices than other products. The results suggest that consumers in different countries have different orientations that influence their perceptions of value. From this perspective, this study can provide designers with insights on the importance of making sustainable designs that are appropriate to the target market beyond the trends imposed by the global fashion industry.     

Phases of Globalization,Wages and Inequality

Open Economies Review - To analyse the globalization-wages-inequality relationship, we extend the North-South Heckscher-Ohlin-Samuelson (HOS) model by assuming (i) that the size of the South...     

Heteroskedasticity-consistent covariance matrix estimators for spatial autoregressive models

In the presence of heteroskedasticity, conventional test statistics based on the ordinary least squares (OLS) estimator lead to incorrect inference results for the linear regression model. Given that heteroskedasticity is common in cross-sectional data, the test statistics based on various forms of heteroskedasticity-consistent covariance matrices (HCCMs) have been developed in the literature. In contrast to the standard linear regression model, heteroskedasticity is a more serious problem for spatial econometric models, generally causing inconsistent extremum estimators of model coefficients. This paper investigates the finite sample properties of the heteroskedasticity-robust generalized method of moments estimator (RGMME) for a spatial econometric model with an unknown form of heteroskedasticity. In particular, it develops various HCCM-type corrections to improve the finite sample properties of the RGMME and the conventional Wald test. The Monte Carlo results indicate that the HCCM-type corrections can produce more accurate results for inference on model parameters and the impact effects estimates in small samples.