Non-stationary Interest Rate Differentials and the Role of Monetary Policy

Abstract

The present work deals with a frequently detected failure of the uncovered interest rate parity (UIP) – the absence of bivariate cointegration between domestic and foreign interest rates. We explain the non-stationarity of the interest differential via central bank reactions to exchange rate variations. Thereby, the exchange rate in levels introduces an additional stochastic trend into the system. Trivariate cointegration between the interest rates and the exchange rate accounts for the missing stationarity property of the interest differential. We apply the concept to the case of Turkey and Europe, where we can validate the theoretical considerations by multivariate time series techniques.     

Long- versus medium-run identification in fractionally integrated VAR models

We state that long-run restrictions that identify structural shocks in VAR models with unit roots lose their original interpretation if the fractional integration order of the affected variable is below one. For such fractionally integrated models we consider a medium-run approach that employs restrictions on variance contributions over finite horizons. We show for alternative identification schemes that letting the horizon tend to infinity is equivalent to imposing the restriction of Blanchard and Quah (1989) introduced for the unit-root case.     

The effect of temporary help jobs on employment volatility

This study investigates the impact of temporary agency employment on employment volatility outside the sector. Making use of econometric volatility models, we find that enhancing numerical flexibility by temporary agency employment decreases employment volatility of incumbent workers. However, not all subgroups are benefitting equally. While prime‐age permanent workers gain considerably from higher flexibility, young workers, migrants and low‐skilled workers not only are overrepresented among the temps but also do not gain when employed outside the sector.     

Adam Smith on Relations of Subordination, Personal Incentives and the Division of Labour

In elaborating his stadial approach to economic and social progress, Smith placed special emphasis on the evolution of the conceptual pair authority/subordination. The aim of this paper is to analyse the reciprocal relations which link together the evolution of the relations of subordination, personal incentives, and the division of labour with special reference to the agricultural and the commercial stages. In the former case, Smith pointed out the exclusive role performed by personal incentives in increasing labour productivity, a role which is consistent with his manifest preference for the figure of the 'independent small-scale proprietor'. In the latter case we note a change of emphasis due both to the pervasive role of the division of labour in increasing labour productivity, and—as a by-product of this change—to the emergence of a new form of relation of subordination. In this new context the division of labour engenders a new form of property polarisation, one connected no longer to land but to capital accumulation. Moreover, because of its harmful effects on the mental capacity of manufacturing workers, the division of labour appears to act as an obstacle against social mobility, and this in turn further reinforces the process of property polarisation.     

Simultaneous stochastic volatility transmission across American equity markets

Information flows across international financial markets typically occur within hours, making volatility spillovers appear contemporaneously in daily data. Such simultaneous transmission of variances is featured by the stochastic volatility model developed in this paper, in contrast to usually employed multivariate ARCH processes. The arising identification problem is solved by considering heteroscedasticity of the structural volatility innovations. Estimation takes place in an appropriately specified state space setup. In the empirical application, unidirectional volatility spillovers from the US stock market to three American countries are revealed. The impact is strongest for Canada, followed by Mexico and Brazil, which are subject to idiosyncratic crisis effects.     

Constructing a new leading indicator for unemployment from a survey among German employment agencies

The article investigates the predictive power of a new survey implemented by the Federal Employment Agency (FEA) for forecasting German unemployment in the short run. Every month, the CEOs of the FEA’s regional agencies are asked about their expectations of future labour market developments. We generate an aggregate unemployment leading indicator that exploits serial correlation in response behaviour through identifying and adjusting temporarily unreliable predictions. We use out-of-sample tests suitable in nested model environments to compare forecasting performance of models including the new indicator to that of purely autoregressive benchmarks. For all investigated forecast horizons (1, 2, 3 and 6 months), test results show that models enhanced by the new leading indicator significantly outperform their benchmark counterparts. To compare our indicator to potential competitors, we employ the model confidence set. Results reveal that models including the new indicator perform very well at the 10% level.     

Plant location and strategic environmental policy with inter-sectoral linkages

In recent debates on trade liberalisation the concern has often been expressed that with more competitive international trade governments will be worried that by setting tougher environmental policies than their trading rivals they will put domestic producers at a competitive disadvantage, and in the extreme case this could lead to firms relocating production in other countries. The response by governments to such concerns will be to weaken environmental policies (‘eco-dumping’). In competitive markets such concerns are ill founded, but there is a small amount of literature which has analysed whether governments will indeed have incentives for eco-dumping in the more relevant case of markets where there are significant scale economies; even here there is no presumption that the outcome will involve eco-dumping.In this paper we extend the analysis of strategic environmental policy and plant location decisions by analysing the location decision of firms in different sectors which are linked through an input-output structure of intermediate production. The reason why we introduce inter-sectoral linkages between firms is that they introduce an additional factor, relative to those already analysed in the literature, in the plant location decision, which is the incentive for firms in different sectors to agglomerate in a single location. This has a number of important effects. First, there is now the possibility of multiple equilibria in location decisions of firms. Following from this there is the possibility of catastrophic effects where a small increase in an environmental tax can trigger the collapse of an industrial base in a country; however there is also the possibility that a country which raises its environmental tax could attract more firms to locate in that country, because of the way the tax affects incentives for agglomeration. Finally, and again related to the previous effects, there is the possibility of a hysteresis effect where raising an environmental tax in one country can cause firms to relocate to another country, but subsequently lowering that tax will not induce firms to relocate back into the original country.We consider a simple model with two countries, two industries, an upstream and a downstream sector, and two firms per industry. The analysis proceeds through a three-stage game: in the first stage the governments of the two countries set their environmental policies; in the second stage the firms in both industries choose how many plants to locate and where; in the third stage firms choose their output levels, with the demand for the upstream firms being determined endogenously by the production decisions of the downstream firms. We assume that there are no limits to production capacity, so that firms do not build more than one plant in any country. However, firms may build plants in different countries because of positive transport costs. Although the model appears very simple, it cannot be solved analytically, so all the conclusions must be drawn from numerical simulations.