Suchergebnisse

Abstract
Massive developments in technology, ICT, and artificial intelligence have been witnessed in recent years, with various projects emerging showing the apparent superiority of artificial intelligence over human intelligence, such as Deep Blue, AlphaGo, OpenAI Five, and GPT 3. In connection with them and with the favoured method of machine learning with deep learning, the term language model has appeared, which has the ambition to become the basis of general artificial intelligence (AGI). Critical responses, however, have been claiming that this is a dead end. An alternative view to these critical responses is attempted to be shown in this article, with consideration given as to whether the language model is just what critics consider it to be or whether something more can be sought behind it.

We evaluate the effect of exchange rate misalignments on the balance of trade and the role that global value chain participation plays in this effect for 11 new European Union member states. Using heterogeneous panel cointegration methods, we first estimate the real equilibrium exchange rate and detect episodes of currency misalignment. We find asymmetric effects of real currency misalignments: overvaluation has a negative effect, but undervaluation has no effect on the trade balance. Additionally, we find that global value chain participation weakens the effect of currency misalignments on the balance of trade. Therefore, our results suggest that globalization reduces the role of exchange rates in stimulating the domestic economy.

We examine how the transparency of the European Central Bank´s monetary policy affects the amount of trust that the citizens of the European Union have in this institution. We use nearly half a million individual responses from the European Commission´s Eurobarometer survey from 2000-2011 and estimate probit regressions with sample selection. We find that transparency exerts a non-linear effect on trust. Transparency increases trust, but only up to a certain point; too much transparency harms trust. This result is robust to controlling for a number of macroeconomic conditions, financial stability transparency measures, and economic and socio-demographic characteristics of respondents, including examining respondents in European Union countries that do not use the euro and addressing clustering issues.

This paper aims to contribute to a better understanding on how inflation targets are set. For this reason, we first gather evidence from official central bank and government publications and from a questionnaire sent to central banks on how inflation targets are set; we then estimate the determinants of the level of inflation target in 19 inflation targeting countries using unbalanced panel interval regressions (to deal with the issue that targets are typically set as a range rather than as a point). Inflation targets are found to reflect macroeconomic fundamentals. Higher level as well as higher variability of inflation are associated with higher target. The setting of the inflation target is also found to have an important international dimension, as higher world inflation is positively correlated with inflation targets. Rapidly growing countries exhibit higher inflation targets. Our results also suggest that the larger width of inflation target is set in a more volatile macroeconomic environment. We find that central bank credibility is negatively associated with the level of inflation target, suggesting that less credible central banks are likely to recognize the risks related to anchoring inflation expectations at low levels. On the other hand, government party orientation does not matter even in less independent central banks.

In this paper, we provide evidence on the nature and the relative importance of domestic and foreign shocks in Slovak economy based on block-restriction vector autoregression model in 1999-2007. We document well-functioning monetary transmission mechanism in Slovakia. Subject to various sensitivity checks, we find that contractionary monetary policy shock has a temporary negative effect on the degree of economic activity and price level. We find that using output gap instead of GDP alleviates the price puzzle. In general, prices are driven mainly by foreign factors and the European Central Bank monetary policy shock on Slovak prices is more powerful than that of the National Bank of Slovakia. Slovak central bank interest rate policy seems to follow the ECB's interest rates. On the other hand, spectacular Slovak economic growth is primarily driven by domestic factors suggesting the positive role of recently undertaken Slovak economic reforms.

In this paper, we examine the determinants of inflation differentials in a panel of the new European Union member states vis-à-vis the euro area in 1997-2007. Our main results are as follows. Exchange rate appreciation and higher price level in the new EU members is associated with narrower inflation differential vis-à-vis the euro area, while fiscal deficit and positive output gap seem to contribute to higher inflation differential. Nevertheless, the effect of price convergence on inflation differentials is found to be dominating in these countries suggesting that a country with price level 20% below the euro area average is likely to exhibit inflation nearly one percentage point above the euro area. Overall, our results indicate that real convergence factors rather than cyclical variation are more important for inflation developments in the new EU members, as compared to the euro area.

Most empirical studies on price setting that use micro data focus on advanced industrial countries. In this paper we analyze the experience of an emerging economy, Slovakia, using a large micro-level dataset that accounts for a substantial part of the consumer price index (about 5 million observations). We find that market structure is an important determinant of pricing behavior. The effect of market structure on persistence of inflation results from two conflicting forces. Increased competition may reduce persistence by increasing the frequency of price changes. In contrast, higher competition may increase persistence through inertial behaviour induced by the strategic complementarity among price setters. In our case study, we find that the latter effects dominate. Indeed, the dispersion of prices is higher while persistence is lower in the non-tradable sectors, suggesting that higher competition is not conducive to lower persistence. Furthermore, we find that the frequency of price changes depends negatively on the price dispersion and positively on the product-specific inflation. These results seem consistent with predictions of Calvo's staggered price model.

What are the factors that explain reversals in the implementation of structural reforms? Our main hypothesis is that reversals in different reforms are driven by different factors. This paper uses new reform indicators and presents novel evidence showing that (a) FDI inflows reduce the likelihood of privatization reversals, (b) worsened terms of trade increase the probability of external liberalization reversals and (c) labour strikes propel reversals in the liberalization of wages and prices.

We construct objective measures of privatization, internal and external liberalization reform efforts, across countries over time, and investigate their determinants, reversals and macroeconomic impacts. We find that GDP growth determines external liberalization and privatization, concentration of political power drives internal liberalization, and democracy underpins all three. We find that FDI inflows reduce the probability of privatization reversals, labour strikes increase that of internal liberalization reversals, and OECD growth increase that of external liberalization reversals. We replicate previous studies and find that the macroeconomic effects of reform (when measured objectively) tend to be larger and more precisely estimated.

We estimate a New Keynesian model on post-war US data with generalised method of moments using either constant or time- varying debt and labor income taxes. We show that accounting for government debt and distortionary taxes help the New Keynesian model match the level of the nominal term premium with a lower relative risk-aversion than typically found in the literature.