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Stock Price Bubbles: Identification and the Effects of Monetary Policy
Koza, Oldřich ; Matějů, Jakub (advisor) ; Ryska, Pavel (referee)
This thesis studies bubbles in the U.S. stock market and how they are influenced by monetary policy pursued by the FED. Using Kalman filtering, the log-real price of S&P 500 is decomposed into a market-fundamentals component and a bubble component. The market-fundamentals component depends on the expected future dividends and the required rate of return, while the bubble component is treated as an unobserved state vector in the state-space model. The results suggest that, mainly in recent decades, the bubble has accounted for a substantial portion of S&P 500 price dynamics and might have played a significant role during major bull and bear markets. The innovation of this thesis is that it goes one step further and investigates the effects of monetary policy on both estimated components of S&P 500. For this purpose, the block- restriction VAR model is employed. The findings indicate that the decreasing interest rates have a significant short-term positive effect on the market-fundamentals component but not on the bubble. On the other hand, quantitative easing seems to have a positive effect on the bubble but not on the market-fundamentals component. Finally, the results suggest that the FED has not been successful at distinguishing between stock price movements due to fundamentals or the price misalignment.
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Two Essays on Inflation Targeting
Matějů, Jakub ; Horváth, Roman (advisor) ; Holub, Tomáš (referee)
Title: Two Essays on Inflation Targeting Author: Mgr. Jakub Matějů Department: Institute of Economic Studies Supervisor: Roman Horváth, PhD. Abstract: The thesis consists of two essays on inflation targeting. The first essay examines how do monetary authorities set their inflation targets. Survey of central banks' communication regarding the target is presented, theoretical model is developed and finally empirical analysis is conducted on a panel of inflation targeting countries. This pioneering analysis of the topic leads us to conclusion that inflation targets are influenced by more variables than central banks admit. In addition to past and foreign inflation, inflation variability and GDP growth we find significant impact of central bank credibility and other institutional factors. The short second essay surveys literature assessing performance of inflation targeting and outlines perspectives of inflation targeting as a monetary policy framework. The conclusion is that if inflation targeting central banks stick to their best practice in transparency and communication and remain open to innovations, inflation targeting will have a good chance to score well even in the periods of turmoil.
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Two Essays on Inflation Targeting
Matějů, Jakub ; Horváth, Roman (advisor) ; Koprnická, Kamila (referee)
The thesis consists of two essays on inflation targeting. The hrst essay examines how do centrál banks set their inflation targets. Survey of centrál banks' communication regard-ing the target is presented, theoretical model is developed and finally empirical analysis is conducted on a panel of inflation targeting countries. This pioneering analysis of the topič leads us to conclusion that inflation targets are influenced by more variables than centrál banks admit. In addition to past and foreign inflation, inflation variability and GDP growth we find significant impact of centrál bank credibility and other institutional factors. The short second essay surveys literatúre assessing performance of inflation targeting and outlines perspectives of inflation targeting as a monetary policy framework. The conclusion is that if inflation targeting centrál banks stick to their best practice in transparency and communication and remain open to innovations, inflation targeting will háve a good chance to score well even in the periods of turmoil.
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Stock Price Bubbles: Identification and the Effects of Monetary Policy
Koza, Oldřich ; Matějů, Jakub (advisor) ; Ryska, Pavel (referee)
This thesis studies bubbles in the U.S. stock market and how they are influenced by monetary policy pursued by the FED. Using Kalman filtering, the log-real price of S&P 500 is decomposed into a market-fundamentals component and a bubble component. The market-fundamentals component depends on the expected future dividends and the required rate of return, while the bubble component is treated as an unobserved state vector in the state-space model. The results suggest that, mainly in recent decades, the bubble has accounted for a substantial portion of S&P 500 price dynamics and might have played a significant role during major bull and bear markets. The innovation of this thesis is that it goes one step further and investigates the effects of monetary policy on both estimated components of S&P 500. For this purpose, the block- restriction VAR model is employed. The findings indicate that the decreasing interest rates have a significant short-term positive effect on the market-fundamentals component but not on the bubble. On the other hand, quantitative easing seems to have a positive effect on the bubble but not on the market-fundamentals component. Finally, the results suggest that the FED has not been successful at distinguishing between stock price movements due to fundamentals or the price misalignment.
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Regional Unemployment Analysis: Case of the Czech Republic
Šoltés, Michal ; Matějů, Jakub (advisor) ; Šopov, Daniel (referee)
In this thesis, I examine the development of regional unemployment in the Czech Republic in the past 2 decades. The statistics show that there are differentials among the regional unemployment rates. The differentials in the Czech Republic seem to be one of the highest in Europe. More importantly, the differentials appear to be persistent as the disparity is stationary and there are cointegrating vectors among the regional unemployment rates. One of the possible explanation could be the different processes of setting long-run equilibrium in regional unemployment rates. In some regions, the behaviour of unemployment is consistent with the NAIRU hypothesis, thus the long-run equilibrium is not affected by economic shocks. On the other hand, I also find regions in which the data support unemployment Hysteresis and path dependent equilibrium of unemployment rate. Moreover, most of the time, the distribution of unemployment over the regions appears to be symmetrical around its mean i.e. there is a comparable amount of regions with higher and lower unemployment rates. Powered by TCPDF (www.tcpdf.org)
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Two Essays on Inflation Targeting
Matějů, Jakub ; Horváth, Roman (advisor) ; Holub, Tomáš (referee)
Title: Two Essays on Inflation Targeting Author: Mgr. Jakub Matějů Department: Institute of Economic Studies Supervisor: Roman Horváth, PhD. Abstract: The thesis consists of two essays on inflation targeting. The first essay examines how do monetary authorities set their inflation targets. Survey of central banks' communication regarding the target is presented, theoretical model is developed and finally empirical analysis is conducted on a panel of inflation targeting countries. This pioneering analysis of the topic leads us to conclusion that inflation targets are influenced by more variables than central banks admit. In addition to past and foreign inflation, inflation variability and GDP growth we find significant impact of central bank credibility and other institutional factors. The short second essay surveys literature assessing performance of inflation targeting and outlines perspectives of inflation targeting as a monetary policy framework. The conclusion is that if inflation targeting central banks stick to their best practice in transparency and communication and remain open to innovations, inflation targeting will have a good chance to score well even in the periods of turmoil.
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Limited Liability, Asset Price Bubbles and the Credit Cycle: The Role of Monetary Policy
Matějů, Jakub ; Kejak, Michal
This paper suggests that the dynamics of the non-fundamental component of asset prices are one of the drivers of the credit cycle. The presented model builds on the financial accelerator literature by including a stock market where investors with limited liability trade stocks of productive firms with stochastic productivities. Investors borrow funds from the banking sector and can go bankrupt. Their limited liability induces a moral hazard problem which shifts demand for risk and drives prices of risky assets above their fundamental value. Embedding the contracting problem in a New Keynesian general equilibrium framework, the model shows that expansionary monetary policy induces loose credit conditions and leads to a rise in both the fundamental and non-fundamental components of stock prices. A positive shock to the non-fundamental component triggers a credit cycle: collateral value rises, and lending and default rates decrease. These effects reverse after several quarters, inducing a credit crunch. The credit boom lasts only while stock market growth maintains sufficient momentum. However, monetary policy does not reduce the volatility of inflation and the output gap by reacting to asset prices.
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