Communication is an important aspect of modern monetary policy. Since the popularization of the inflation targeting framework, communication has been used to manage expectations and maintain credibility. In recent years, forward guidance as a signaling strategy has been recognized as an important tool of monetary policy. Can communication be considered an effective monetary policy tool? Using data from the United States, in a sample from 1990 to 2019, a Bai Perron test for multiple breakpoints is conducted to identify changes in both inflation expectations, term structure of the expectation, and expected real interest rates. We find evidence that changes in expectations for both inflation and real interest rates are associated with changes in central bank’s signaling strategy.

[pt] A relação entre preços de ativos, expectativa de política monetária, e liberação de dados macroeconômicos tem sido avaliada pela literatura há bastante tempo. Essa dissertação estuda as implicações da ancoragem das expectativas de longo prazo de inflação, como instrumento de política monetária, para a estrutura a termo das taxas de juros. Particularmente, este trabalho objetiva entender como esse mecanismo se conecta ao padrão de variabilidade temporal de ambas a volatilidade dos retornos nominais e a sensibilidade dos mesmos a novidades macroeconômicas. Tendo isso em vista, um modelo Novo-Keynesiano com duas principais características é apresentado. Primeiro, os agentes possuem crenças subjetivas ao invés de expectativas racionais. Eles aprendem sobre o target de inflação definido pelo banco central e suas expectativas podem se tornar ancoradas ou desancoradas, dado o estado da economia. Segundo, a aversão ao risco dos consumidores varia ao longo do tempo. O modelo possui uma principal predição: a sensibilidade da estrutura a termo da taxa de juros com relação a supresas de inflação não apenas varia no tempo, mas depende do estado da economia. / [en] The relation between asset prices, monetary policy expectations, and macroeconomic data releases has long been assessed by the literature. This dissertation addresses the implications of the anchoring or unanchoring of long-run inflation expectations, as a stance of monetary policy, to the term structure of bond yields. In particular, it aims to understand how this mechanism is connected to the time-varying pattern of both the volatility of nominal yields and their sensitivity to macroeconomic surprises. To that matter, we present a New-Keynesian model with two main characteristics. First, agents have subjective beliefs instead of rational expectations. They learn about the inflation target set by the central bank and their expectations may become anchored or unanchored over time, given the state of the economy. Second, agents face time-varying risk aversion. The model has one main prediction: the sensitivity of the term structure to inflation surprises is not only time-varying, but state-dependent.

O presente trabalho tem como objetivo analisar a persistência inflacionária no Brasil entre 1999 e 2016, isto é, investigar as suas causas, seus mecanismos e estimar o seu grau. A hipótese geral é que há um grau significativo de resiliência na inflação mesmo após a implantação do regime de metas, o que dá indícios de que existem causas de pressão inflacionária que estão sendo desconsideradas. De forma a responder à pergunta “por que a inflação ainda tem persistência no Brasil?” e cumprir o objetivo, este estudo se constrói em perspectiva tanto teórica quanto empírica. Em um primeiro momento, realiza uma revisão de literatura entre as abordagens convencional, keynesiana e estruturalista do processo inflacionário, de modo a compreender as diferenças entre os postulados teóricos destas vertentes e, posteriormente, introduz aos conceitos de persistência. Em seguida, são discutidas as várias fontes de inflação (sejam elas relacionadas ao agregado monetário ou não), a evolução das expectativas, a eficácia da taxa de juros como instrumento de política antiinflacionária e algumas políticas não-monetárias que contribuem para a estabilidade de preços. Por fim, através de estimadores GPH, Whittle, Expoente de Hurst e um modelo autorregressivo de integração fracionada (ARFIMA), é estimado o grau de tal resiliência no caso brasileiro. / The present study aims to analyze the inflationary persistence in Brazil between 1999 and 2016, which means to investigate its causes, its mechanisms and to estimate its degree. The general hypothesis is that there is a significant degree of resilience in inflation even after the implementation of the targets, which gives indications that there are causes of inflationary pressures being disregarded. In order to answer the question “Why is inflation still persistent in Brazil?” and fulfill its goal, this work is built on both theoretical and empirical perspective. At first, it performs a literature review between the conventional, keynesian and structuralist approaches of inflationary process, in order to understand the differences among the theoretical postulates of these strands and later introduces to the concepts of persistence. Next, the various sources of inflation (whether them related to the monetary aggregate or not), the evolution of expectations, the effectiveness of the interest rate as an instrument of anti-inflationary policy and some non-monetary policies that contribute to price stability are discussed. Finally, through GPH and Whittle estimators, Hurst Exponent and an autoregressive fractionally integrated model (ARFIMA), it is estimated the degree of such resilience in the Brazilian case.

<p>The Fisher Equation suggests that the spread between nominal and real interest rates is equal to the inflation expectations. In Sweden, where both nominal and inflation linked bonds exist the fisher equation implies that the yield spread could provide investors and policymakers with important information about markets inflation expectations. The aim of this thesis is therefore to estimate whether the yield spread between Swedish nominal and real interest rates - widely referred to as the Breakeven Inflation (BEI) - is a market based measure of inflation expectations. A sample based on historical bond prices between year 2000 and 2007 is used and adjusted for 3 distortions: i) The mismatch in cash flow structure arising from different bond characteristics. ii) The inflation indexation and bond finance implications (carry). iii) The seasonality in Consumer Price Index (CPI). In the absence of “true” inflation expectations, the benchmark used for the evaluation and comparison of the unadjusted and adjusted BEI series is the survey based, Prospera Money Market Players inflationary expectations, i.e. professional forecasters. The evaluation uses two statistical measures to estimate the errors, the Root Mean Squared Error (RMSE) to estimate the size of the forecast error and the Mean Error (ME) to measure the bias or the tendency for the forecast error to point in a particular direction. The general conclusion of the study is that both the unadjusted and the adjusted BEI series have improved significantly throughout the sample period as predictors of inflation expectations.</p><p>Further, in the first half of the sample, the MEs show that the BEI tends to underestimate inflation expectations, while in the second part of the sample the direction of the errors are less univocal. However, the carry adjusted and in some extent the carry and seasonality adjusted BEI seem to improve the BEI somewhat, although the conclusions are not very convincing. When using BEI to measure inflation expectations the conclusions should also be balanced against the possible bias associated with survey based expectations.</p>

The Fisher Equation suggests that the spread between nominal and real interest rates is equal to the inflation expectations. In Sweden, where both nominal and inflation linked bonds exist the fisher equation implies that the yield spread could provide investors and policymakers with important information about markets inflation expectations. The aim of this thesis is therefore to estimate whether the yield spread between Swedish nominal and real interest rates - widely referred to as the Breakeven Inflation (BEI) - is a market based measure of inflation expectations. A sample based on historical bond prices between year 2000 and 2007 is used and adjusted for 3 distortions: i) The mismatch in cash flow structure arising from different bond characteristics. ii) The inflation indexation and bond finance implications (carry). iii) The seasonality in Consumer Price Index (CPI). In the absence of “true” inflation expectations, the benchmark used for the evaluation and comparison of the unadjusted and adjusted BEI series is the survey based, Prospera Money Market Players inflationary expectations, i.e. professional forecasters. The evaluation uses two statistical measures to estimate the errors, the Root Mean Squared Error (RMSE) to estimate the size of the forecast error and the Mean Error (ME) to measure the bias or the tendency for the forecast error to point in a particular direction. The general conclusion of the study is that both the unadjusted and the adjusted BEI series have improved significantly throughout the sample period as predictors of inflation expectations. Further, in the first half of the sample, the MEs show that the BEI tends to underestimate inflation expectations, while in the second part of the sample the direction of the errors are less univocal. However, the carry adjusted and in some extent the carry and seasonality adjusted BEI seem to improve the BEI somewhat, although the conclusions are not very convincing. When using BEI to measure inflation expectations the conclusions should also be balanced against the possible bias associated with survey based expectations.

O presente trabalho tem como objetivo analisar a persistência inflacionária no Brasil entre 1999 e 2016, isto é, investigar as suas causas, seus mecanismos e estimar o seu grau. A hipótese geral é que há um grau significativo de resiliência na inflação mesmo após a implantação do regime de metas, o que dá indícios de que existem causas de pressão inflacionária que estão sendo desconsideradas. De forma a responder à pergunta “por que a inflação ainda tem persistência no Brasil?” e cumprir o objetivo, este estudo se constrói em perspectiva tanto teórica quanto empírica. Em um primeiro momento, realiza uma revisão de literatura entre as abordagens convencional, keynesiana e estruturalista do processo inflacionário, de modo a compreender as diferenças entre os postulados teóricos destas vertentes e, posteriormente, introduz aos conceitos de persistência. Em seguida, são discutidas as várias fontes de inflação (sejam elas relacionadas ao agregado monetário ou não), a evolução das expectativas, a eficácia da taxa de juros como instrumento de política antiinflacionária e algumas políticas não-monetárias que contribuem para a estabilidade de preços. Por fim, através de estimadores GPH, Whittle, Expoente de Hurst e um modelo autorregressivo de integração fracionada (ARFIMA), é estimado o grau de tal resiliência no caso brasileiro. / The present study aims to analyze the inflationary persistence in Brazil between 1999 and 2016, which means to investigate its causes, its mechanisms and to estimate its degree. The general hypothesis is that there is a significant degree of resilience in inflation even after the implementation of the targets, which gives indications that there are causes of inflationary pressures being disregarded. In order to answer the question “Why is inflation still persistent in Brazil?” and fulfill its goal, this work is built on both theoretical and empirical perspective. At first, it performs a literature review between the conventional, keynesian and structuralist approaches of inflationary process, in order to understand the differences among the theoretical postulates of these strands and later introduces to the concepts of persistence. Next, the various sources of inflation (whether them related to the monetary aggregate or not), the evolution of expectations, the effectiveness of the interest rate as an instrument of anti-inflationary policy and some non-monetary policies that contribute to price stability are discussed. Finally, through GPH and Whittle estimators, Hurst Exponent and an autoregressive fractionally integrated model (ARFIMA), it is estimated the degree of such resilience in the Brazilian case.

O presente trabalho tem como objetivo analisar a persistência inflacionária no Brasil entre 1999 e 2016, isto é, investigar as suas causas, seus mecanismos e estimar o seu grau. A hipótese geral é que há um grau significativo de resiliência na inflação mesmo após a implantação do regime de metas, o que dá indícios de que existem causas de pressão inflacionária que estão sendo desconsideradas. De forma a responder à pergunta “por que a inflação ainda tem persistência no Brasil?” e cumprir o objetivo, este estudo se constrói em perspectiva tanto teórica quanto empírica. Em um primeiro momento, realiza uma revisão de literatura entre as abordagens convencional, keynesiana e estruturalista do processo inflacionário, de modo a compreender as diferenças entre os postulados teóricos destas vertentes e, posteriormente, introduz aos conceitos de persistência. Em seguida, são discutidas as várias fontes de inflação (sejam elas relacionadas ao agregado monetário ou não), a evolução das expectativas, a eficácia da taxa de juros como instrumento de política antiinflacionária e algumas políticas não-monetárias que contribuem para a estabilidade de preços. Por fim, através de estimadores GPH, Whittle, Expoente de Hurst e um modelo autorregressivo de integração fracionada (ARFIMA), é estimado o grau de tal resiliência no caso brasileiro. / The present study aims to analyze the inflationary persistence in Brazil between 1999 and 2016, which means to investigate its causes, its mechanisms and to estimate its degree. The general hypothesis is that there is a significant degree of resilience in inflation even after the implementation of the targets, which gives indications that there are causes of inflationary pressures being disregarded. In order to answer the question “Why is inflation still persistent in Brazil?” and fulfill its goal, this work is built on both theoretical and empirical perspective. At first, it performs a literature review between the conventional, keynesian and structuralist approaches of inflationary process, in order to understand the differences among the theoretical postulates of these strands and later introduces to the concepts of persistence. Next, the various sources of inflation (whether them related to the monetary aggregate or not), the evolution of expectations, the effectiveness of the interest rate as an instrument of anti-inflationary policy and some non-monetary policies that contribute to price stability are discussed. Finally, through GPH and Whittle estimators, Hurst Exponent and an autoregressive fractionally integrated model (ARFIMA), it is estimated the degree of such resilience in the Brazilian case.

In the third millennium CNB took over a Policy of Inflation Targeting. Czech Republic was one of the first countries which adopted that policy. This diploma is connected with bachelor thesis, entitled "Instruments of Monetary Policy in Czech Republic since 2000" written in 2009 and deals with explanations of tools and principles of monetary policy in terms of the political course of inflation targeting.

[pt] Estudos empíricos de como ações respondem às expectativas são de crescente importância, pois fornecem informações essenciais sobre as escolhas dos agentes e contribuem para modelos teóricos. Nós construímos uma base de dados inédita combinando dados de previsões de investidores institucionais do valor mensal de variáveis macroeconômicas com suas escolhas de portfolio. Essa base nos permite investigar como esses dois aspectos estão correlacionados. Encontramos que um aumento de expectativa de inflação e da expectativa de câmbio estão correlacionados com uma redução na exposição a pré fixados. Também observamos uma correlação negativa entre as expectativas da taxa de juros e a exposição à inflação se controlamos para as expectativas das demais variáveis. / [en] Empirical studies of how actions respond to expectations are of increasing relevance, as they provide vital information on agents choices and contribute to theoretical models. We explore how this pass-through occurs in institutional investors in Brazil. We assemble a novel dataset by matching data on institutions forecasts of inflation, the exchange rate and the interest rate with their hedge funds portfolio holdings. This dataset allows us to investigate how institutional investors expectations are related to their portfolio choices. We document that increases in funds inflation and exchange rate expectations are correlated with decreases in their exposures to fixed rate bonds. We also observe a negative correlation between their expectation of the interest rate and their exposure to inflation bonds once we control for the other variables.

Thesis (PhD)--Stellenbosch University, 2011. / ENGLISH ABSTRACT: The effectiveness of monetary policy depends importantly on the expectations of the private sector, as it is largely through this channel of the transmission mechanism that policy changes are transmitted to long-term interest rates. This has increased the emphasis on the role of central bank communication as a monetary policy tool. Successful communication is essential both to enhance the effectiveness of monetary policy and to build support for the institutional framework within which monetary policy is implemented. While the large and growing literature on central bank communication over the past decade has delivered strong support for the important role of central bank communication, there is less agreement about what the optimal communication strategy is. Furthermore, research has been limited mainly to studies of communication between central banks and the financial markets. In an evaluation of progress in the literature, Blinder et al. (2008) highlight the need to examine the interaction between central banks and the rest of the private sector (the general public) as well. The objective of this PhD dissertation is to evaluate the South African Reserve Bank’s (SARB’s) use of communication as a monetary policy tool. Special focus is given to communication with the inattentive general public, who set prices in the labour market and the market for goods and services. Different aspects of the SARB’s communication were studied, including the consistency of the South African Reserve Bank’s communication, the transmission of this communication via the media to the general public, and the process by which the general public gathers and processes the information on inflation. An evaluation of the SARB’s communications (its original messages) provided some evidence that the SARB has succeeded in communicating consistently over the inflation targeting period. This was followed by an assessment of the role of the media in transmitting the original communications to the general public. The results suggest that South African media reports generally show a lack of critical assessment of monetary policy decisions and that the inter-meeting communication by the SARB is ineffective at influencing these. An important challenge is for the SARB to consider how it can participate more actively in the economic discussion at this level and how it can build productive strategic relationships with the media. The final section of this dissertation explores the process by which the general public forms its inflation expectations, relying on epidemiological models to describe the spread of inflation information and to estimate the speed at which the general public, in aggregate, updates their inflation expectations. This estimate of the speed of adjustment will be valuable to future research that aims to build a Phillips curve in a new way for South Africa. A well-modelled Phillips curve will both improve the monitoring of the impact of monetary policy and inform future policy design and implementation. / AFRIKAANSE OPSOMMING: Die doeltreffendheid van die monetêre beleid is beduidend afhanklik van die verwagtinge in die privaat sektor, aangesien beleid hoofsaaklik deur hierdie kanaal langtermyn rentekoerse beïnvloed. Hierdie bewustheid het die klem op die rol van sentrale bank kommunikasie as ‘n monetêre instrument versterk. Suksesvolle kommunikasie is noodsaaklik om beide die effektiwiteit van monetêre beleid te verseker sowel as om ondersteuning vir die institusionele raamwerk waarbinne die monetêre beleid geïmplimenteer word, te bou. Hoewel daar ‘n groot en groeiende literatuur is wat die belangrikheid van sentrale bank kommunikasie oor die afgelope dekade beklemtoon, is daar nie eenstemmigheid oor wat die optimale kommunikasie strategie behels nie. Daarbenewens is meeste studies beperk tot die kommunikasie tussen monetêre owerhede en die finansiële sektor. In ‘n evaluering van die literatuur het Blinder et al. (2008) die noodsaaklikheid beklemtoon om die wisselwerking tussen monetêre owerhede en die res van die privaat sektor (die publiek) te bestudeer. Die doel van hierdie proefskrif is om die Suid-Afrikaanse Reserwebank (SARB) se gebruik van hierdie kommunikasie instrument te evalueer. Spesiale aandag word geskenk aan kommunikasie met die onoplettende publiek wat pryse bepaal in die arbeidsmark en markte vir goedere en dienste. Verskillende aspekte van die SARB se kommunikasie strategie word bestudeer, insluitende die konsekwentheid van kommunikasie, die oordrag van hierdie kommunikasie via die media aan die publiek, asook die proses waarmee die publiek informasie rakende inflasie versamel en verwerk. ‘n Evaluering van die SARB se kommunikasie (die oorspronklike boodskappe) lewer bewys dat die SARB daarin geslaag het om konsekwent te kommunikeer tydens die inflasie teikeningsperiode. Dit word gevolg deur ‘n evaluering van die rol van die media om oorspronklike informasie suskesvol aan die publiek oor te dra. Die resultate dui daarop dat berigte in die Suid Afrikaanse media oor die algemeen aan kritiese evaluering van die monet.re beleidsbesluite ontbreek en die SARB se kommunikasie tussen monetêre beleidsvergaderings is ook oneffektief gevind. ‘n Belangrike uitdaging vir die SARB is dus om te bepaal hoe dit op hierdie vlak tot die ekonomiese debat kan toetree en hoe dit produktiewe strategiese verhoudings met die media kan bou. Die laaste afdeling van die proefskrif bestudeer die proses waarvolgens die publiek hul inflasieverwagtinge formuleer deur gebruik te maak van epidemiologiese modelle wat die verspreiding van inflasie verwagtinge, asook die spoed waarteen die publiek oor die algemeen hul inflasieverwagtinge opdateer, beskryf. Die snelheid waarmee die publiek hul verwagtinge opdateer behoort veral van waarde te wees vir toekomstige studies wat poog om ‘n Phillips kurwe met ‘n nuwe aanslag vir Suid Afrika te skort. ‘n Goed geformuleerde Phillips kurwe sal monitering van monetêre beleide se impak verbeter, en sal ook as ‘n goeie riglyn vir toekomstige beleidsontwerp en -implimentering dien.