We show the importance of a dynamic aggregation bias in accounting for the PPP puzzle. We prove that established time series and panel methods substantially exaggerate the persistence of real exchange rates because of heterogeneity in the dynamics of disaggregated relative prices. When...

This paper revisits the widely known and used concept of soft budget constraints in party-states introduced by Kornai (1980), from the point of view of a comparative analytical model (Csanádi, 2003). It embeds budget constraints in the structure of power relations described by the model as the...

Standard growth accounting exercises find large cross-country differences in aggregate TFP. Here we ask whether specific sectors are driving these differences, and, if this is the case, which these problem sectors are. We argue that to answer these questions we need to consider four sectors. In...

This paper examines the influence of capital accumulation and imports on the relative demand for skilled and unskilled labour in Hungary between 1980 and 2002. Historical data shows that both relative employment and wages of skilled labour were favourably influenced by the changes of the past...

Following Cohn, Rhine and Santos (1989) and Koshal and Koshal (1999),we use American data, i.e., a matched data set of 730 private and 820 public colleges and universities, to estimate multi-product cost functions in higher education. We use federal research grants as a proxy for research output...

Measuring risk can be axiomatized by the concept of coherent measures of risk. A risk environment specifies some individual portfolios' realization vectors and a coherent measure of risk. We consider sharing the risk of the aggregate portfolio by studying transferable utility cooperative games:...

Most studies of optimal monetary policy under learning rely on optimality conditions derived for the case when agents have rational expectations. In this paper, we derive optimal monetary policy in an economy where the Central Bank knows, and makes active use of, the learning algorithm agents...

It is generally accepted that venture capital exerts a positive influence on economic development, and Hungarian economic policy, too, regards it as a means to accelerate economic growth, enhance the export capacity of companies, improve employment, increase tax revenues, investments and...

Firms cluster their economic activities to exploit technological and informational spillovers from other firms. Spillovers through the entry of multinational firms can be particularly beneficial to domestic firms because of their technological superiority. Yet, the importance of foreign firm's...

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