Internal Lunch Seminars

Internal Lunch Seminars provide an informal forum for local researchers to present their work in progress and receive feedback and criticism from colleagues. Talks should last no longer than 30 minutes, leaving ample time for discussion. All interested parties are welcome to attend these events, and we encourage participants to bring their own lunch or sandwich. If you wish to present your work, please drop us an email.

Upcoming seminars

Past events Show current

21 Nov

2024

Cohesion Policy Grants and Corporate Performance: Insights from Slovakia

Eva Výrostová (Masaryk University) ESF Room MT205

The evaluation of the EU Cohesion policy’s effectiveness in the literature is usually macroeconomic in nature. As recent studies highlight the importance of conducting analyses also at the micro-level, this paper estimates the effect of EU Cohesion policy grants on firms’ performance in Slovakia. Our firm-level database is based on Slovak firms’ financial statements and business activities combined with a dataset of enterprises receiving EU funding from Cohesion policy grants. The difference-in-difference method is used to compare two groups of enterprises: those that obtained support from EU funds and a control group of non-participating entities. Our results show that the major differences for participating firms include a significant increase in debt ratio dynamics in the initial years, higher debt levels that are persistent over longer periods, a significant increase in total assets, and a decrease in profitability and rentability. The results are robust with respect to sample matching techniques and matched sample sizes.

24 Oct

2024

Before It’s Gone! How Travelers Respond to Time-Limited Scarcity Cues?

Dušan Mladenović (Masaryk University) ESF Room MT205

This study addresses a critical gap in the existing literature on the efficacy of time-based scarcity cues in the online travel sector. Despite extensive research on scarcity cues influencing tourism-related behaviors such as booking intentions and destination attractiveness, little is known about the real-world impact of time-based scarcity cues, especially their potential negative effects. Moreover, the role of mobile push notifications in mediating these effects remains largely unexplored. By utilizing psychological postulates of the “get-it-before-it's-gone” effect, scarcity principles, and randomized experimental design, this research note quantifies the influence of time-based scarcity cues on traveler behavior - specifically concerning push notifications affecting click-through and conversion (booking) rates. The findings provide actionable insights for online travel platforms and contribute to a theoretical understanding of mobile marketing and travel research.
Keywords: push notifications, before-its-gone effect, randomized experiments, booking, time-based scarcity cues

17 Oct

2024

Strategic uncertainty in games

Ondřej Krčál (Masaryk University) ESF Room MT205 Personal website

Strategic uncertainty is the uncertainty that people face with respect to the purposeful behavior of others in interactive situations. Previous literature measures strategic uncertainty by varying the source of uncertainty. We suggest that strategic uncertainty varies not only between strategic and non-strategic decisions but also that different games are associated with varying degrees of strategic uncertainty. We use the expected volatility of probabilities as a measurement of strategic uncertainty. Our experimental design manipulates strategic uncertainty by changing the payoff structure of a 2x2 strategic game with incomplete information. Our manipulation changes the expected volatility of probability assigned to either action. However, it does not change the equilibrium actions or equilibrium payoffs. We elicit participants' action choices and preferences with respect to the varying degrees of strategic uncertainty in a series of binary choices. Our results show that participants exhibit strategic uncertainty aversion.

3 Oct

2024

Employment Dynamics with Convex Hiring Rules

Dinara Alpysbayeva (Masaryk University) ESF Room MT205

The non-linearity of the hiring rule can generate asymmetric responses of employment growth to shocks, and, hence, stimulate significant skewness and movements in the volatility. This paper argues that the institutional setting determines the shape of the hiring rule, which endogenously transforms the distribution of employment growth, and defines whether aggregate employment growth volatility is counter- or pro-cyclical. We test the hypothesis on an economy characterized by a strong employment protection and high firing costs. To provide additional evidence on the shape of the hiring rule, we further test the mechanism on countries with different labor adjustment costs. We conclude that countries with more rigid labor markets are characterized by a convex hiring rule, and induce pro-cyclical volatility.

26 Sep

2024

Vliv prosociality na proenvironmentální chování v kontextu energetické transformace

Vojtěch Koňařík (VSB - Technical University of Ostrava) ESF Room MT205 Personal website

Cílem předkládaného výzkumu je zjistit, zda prosocialita může napříč různými behaviorálními rámci zvýšit přispívání do účelového fondu určenému k financování technologických inovací v oblasti energetických úspor. Pro tento účel je vytvořen ekonomický experiment v podobě modifikované hry na veřejné dobro (RPGG). Participanti budou náhodně rozdělení do třech skupin. První skupina je kontrolní, druhá a třetí skupina obdrží informaci o dopadech technologické inovace na životní prostředí. Zatímco první dvě skupiny budou hrát se standardní MPCR = 1.4, v rámci třetí skupiny je MPCR = 0. Hra bude mít dvě fáze. Po odehrání první fáze dojde k intervenci v podobě vrstevnického efektu. Po odehrání PGG participanti obdrží test orientace na sociální hodnoty podle Murphy et al. (2011) k určení míry prosociality. V poslední části budou zjištěny socio-demografické charakteristiky. Výzkum se může stát inspirací pro tvůrce hospodářských, environmentálních politik a výzkumníky napříč několika obory, protože: (a) předkládá dva druhy behaviorálního rámce, kde jeden rámec zahrnuje prvek nezištnosti; (b) zkoumá reakci subjektů na tyto rámce a vliv vrstevnického efektu v závislosti na hodnotové orientaci, politické orientaci aj. socio-demografických charakteristik; (c) prostředky z fondu budou použity na skutečný účel. Kromě detailnějšího prozkoumání vztahu mezi prosocialitou a proenvironmentálním chováním výzkum vzhledem k reálnému účelu fondu částečně navazuje na práce Goeschl a kol. (2020) a Weimann a kol. (2022).

5 Jun

2024

The Global Impact of the European Central Bank – Monetary Policy Spillover Effect

Klára Moravcová (MUNI) Academic club

The European Central Bank (ECB) is responsible for formulating and implementing monetary policy for countries using the euro. However, existing literature proposes that the monetary policy of the Eurozone has implications for non-Euro countries. In academic literature numerous studies concentrate on the spillover effects of the Euro Area monetary policies on inflation, GDP, exchange rates, and real estate prices, however, a research gap remains regarding the influence of the ECB´s monetary policy on the financial cycle of non-euro countries. Thus, using the local projection method the primary objective of the research is to address the gap in the existing literature and respond to the research question of how the monetary policy of the European Central Bank spills over to non-euro countries' financial cycles. Among other considerations, we seek to address whether an extended period of accommodating monetary policy in the eurozone could result in more pronounced spillover effects than a single easing action.

22 May

2024

Disclosure Policy in Contests with Sabotage and Group Size Uncertainty

Jonathan Stäbler (University of Mannheim) ESF Room P302b Personal website

In many contests, players are not aware of how many competitors they face. While existing studies examine how disclosing this number affects their productive effort, this paper is the first to consider its impact on destructive behavior. For doing so, I theoretically and experimentally study how revealing the number of contestants affects both effort and sabotage compared to concealing this information. Further, I evaluate the created value by comparing the resulting performances, which are shaped by the combination of the exerted effort and the received sabotage. I show that the overall performance can be higher under concealment, even though the disclosure policy does not affect average effort and sabotage levels. The experimental results largely confirm these theoretical predictions and demonstrate the significance of accounting for the effects of sabotage, as it induces performance differences between the group size disclosure policies. By concealing the number of contestants, a designer can mitigate the welfare-destroying effects of sabotage, without curbing the provision of value-creating effort.

21 May

2024

A fast track for timely unemployment benefits: Impacts on liquidity constrained households from administrative data

Dinara Alpysbayeva (Norwegian University of Life Sciences) ESF Room P302b Personal website

This study evaluates the effectiveness of a program introduced in Norway during the COVID-19 pandemic that provided the option to apply for advance benefit payments to mitigate the impact of delays in the processing of unemployment insurance (UI) claims. We examine whether access to timely UI transfers effectively targeted the intended groups or instead attracted mainly financially literate households. By combining individual application data, demographic information, imputed consumption, and household balance sheet data, we estimate that a large majority of financially constrained households avoided temporary consumption shocks through advance payments, with a median of 31 percent consumption postponement in the absence of the program. The median welfare gain of the program is estimated at 5% of consumption for constrained applicants, concentrated among single adult households.

16 May

2024

Stochastic Cooperation of Non-Mutually Dependent Sellers

Vittorio Larocca (University of Sassari) ESF Academic Club Personal website

We consider the strategic interaction between two sellers facing demand of different customers who are related by a one-sided externality: only the price of one seller affects the other seller’s demand. Because of this externality, both sellers can gain by maximizing their joint profit and sharing it. We assume that cooperation via joint profits maximization is possible only with an exogenously given probability which, however, is varied systematically since we are interested whether sellers would want to render it more likely, if this is possible. So we derive how prices and expected profits of the sellers depend on the likelihood of cooperation as well as on the systematically varied externality parameter. Whereas the expected profit of the monopolist increases monotonically with the cooperation probability, the expected profits of the dependent seller is surprisingly U-shaped: decreasing with more likely cooperation when its probability is small and gaining with more likely cooperation when probability is large. So both sellers are ex-ante better off only when the cooperation probability is high enough. If sellers can only slowly move from independent pricing behavior to cooperation, for instance, to not trigger the attention of the antitrust authority, they may not be able to get off the ground what would justify that antitrust monitoring of one-sided dependent sellers is largely neglected.

6 May

2024

Essentially Heterogeneous: The Consequences of Teen Childbearing on Ecuadorian Mothers and Children

Leonel Borja (Cornell University) ESF Room P303 Personal website

I use deviations from the expected age at menarche to estimate the marginal treatment effects (MTEs) of teen childbearing on schooling and labor outcomes for Ecuadorian mothers and schooling and health outcomes for their firstborn children. Findings suggest that women with unobservable characteristics that make them less likely to become teen mothers are less likely to participate in the labor force, have fewer years of schooling, and are less likely to finish high school if they become teen mothers. Women with values of unobservables that make them more likely to become teen mothers do not have their schooling attainment negatively impacted and increase their labor force participation. I do not find evidence of effects on firstborn children. These findings help reconcile seemingly conflicting evidence from past studies and imply that there is potential to improve women's outcomes by reducing teen childbearing rates when opportunity costs are sufficiently high. However, these findings counter the belief that teen childbearing has been a significant source of intergenerational transmission of low socioeconomic status.

2 May

2024

Scaling Up: Advanced Placement Incentive Program

Hande Nur Celebi (University of Texas at Austin) ONLINE - ZOOM Personal website

This paper explores the success of scaling up of state programs. I study the two phases of staggered rollout of the Advanced Placement (AP) Incentives Programs in Texas which aimed to increase AP utilization. The 1997 pilot phase included a small group of high schools, the Scaled-up phase expanded this to half of all Texas high schools in 2001. Using a staggered difference-in-differences approach, I separately estimate the impact of the program in each phase. I find a 70% increase in AP Enrollment and a 40% increase in the number of AP courses for the schools which implemented the program before scaling up. College enrollment and graduation increases by 10% and 3%, as well as a 7% increase in wages. However, there is a null effect for the outcomes of the schools which implemented the program after scaling up. The potential explanation for the disparate effects is that the student demand for the AP courses differed between two treatment arms.

26 Mar

2024

Trust and strategic third party communication: the role of informedness and motives

Ondřej Uldrijan (Masaryk University) ESF Room P304

This study aims to provide evidence on whether and how trust may be affected by unverifiable third-party communication, corresponding to various real-world phenomena such as fake news, ill-willed gossip, or malicious reviews, in regard to the knowledge and motivation of the third party. Basing our work on the literature concerned with the efficiency of interactions, we conducted a laboratory experiment utilizing an altered trust game. We observe heterogeneity in the effect of informedness on trust: while the presence of a malevolent third party leads to lower trust than the presence of an uninformed third party, the provision of information to an indifferent third party has no significant effect on trust. Furthermore, the motives and informedness of a third party are shown to have an impact on the receiver´s trustworthiness and deceitfulness.

6 Mar

2024

Meta-analyses in Economic Psychology: A sustainable approach to cross-cultural differences

Matteo M. Marini (Masaryk University) ESF Academic Club (HEPII) Personal website

This manuscript is a methodological work on the state of research using meta-analytic procedures in Economic Psychology, with a focus on the investigation of cross-cultural differences. We review published meta-analyses and introduce a new classification thereof by data source, describing how the different categories relate to the study of cross-cultural differences. We also discuss related opportunities and challenges, proposing a sustainable methodological approach that is then implemented in three case studies where we re-analyze data from published meta-analyses. In doing so, the relevance of culture as a determinant is explored by relating country-level cultural indicators to experimental measures of risk aversion, tax compliance, and prosocial behavior, respectively. It turns out that, after we control for country-level cultural heterogeneity and economic development, country-level individualism predicts these economic outcomes. We discuss possible interpretations of our findings.​

29 Feb

2024

It is not true but it could be: Does misinformation about an opponent's intentions provoke conflict?

Rostislav Staněk (Masaryk University) ESF Room MT205 Personal website

The paper investigates the emergence of conflict in situations where actions are strategic complements. Misinformation regarding the malicious intent of one of the conflicting parties can potentially trigger such conflicts. We conduct a laboratory experiment wherein a third party, seeking to incite conflict, can send a public message about a player's intention. We manipulate the third party's incentive to signal aggressive intentions. Despite not providing any useful information, we observe that third-party communication increases the frequency of conflicts. To mitigate this effect, we test two interventions: providing information about the third party's interests and presenting a competing truthful message. However, we find that the effectiveness of these interventions is very limited. We argue that the mere presence of a message indicating malicious intent can disrupt coordination among conflicting parties.

13 Feb

2024

Pink revolution in women’s public transport: Impact of fare-free public bus policy for women- Evidence from Delhi

Dev Sharma (Masaryk University) ESF Room S310

In October 2019, Delhi reformed its public bus transport policy, allowing all women to travel for free. The revolutionary reform was named the Pink Pass scheme and became the world’s first gender-specific transport policy. The policy aims to improve women’s socio-economic participation and safe transport. This article descriptively evaluates the policy’s actual outcome and examines its impact on Delhi’s women. I critically discuss policy plans, rationalities, pitfalls, and the state’s pseudo-evaluation. I estimate Delhi women's pre- and post-reform transport mobility using Delhi economic survey reports, Delhi’s transport company’s data, and 2,142 observations of own survey from September 2023 on Delhi women. My findings show a positive effect of the reform on women’s social and economic welfare. The article explains gaps and suggests further improvements in the pink pass policy. To the best of my knowledge, it is the first literature to discuss the impact of free public transport on women’s socio-economic engagements.

21 Nov
2023

Occupational and public health issues (HEPII Brownbag)

Mattia Filomena (MUNI)

30 May
2023

Border effect in passenger railway transport in Central and Eastern Europe

Ismail Celebi (Masaryk University) Academic club

Increasing high-speed railway planning in Central and Eastern Europe and the lack of border effect estimations in this region encouraged a border effect study in this region. Using railway data collected in 2022, border effects in railway transport between six countries were estimated separately by basing on Czechia and Slovakia. Significant border effects were found between these countries and their neighbours. However, no significant border effect was found between Czechia and Slovakia. These findings support arguments about that countries with common language, culture and history have lower border effects.

18 May
2023

Leveling Health Inequalities: Raising the School Leaving Age Reduces the Risk of Diseases and Severe Medical Conditions Related to Genetic Endowment

Jaroslav Groero (Masaryk University) ESF Room P303 Personal website

Health inequality has a significant genetic component and socio-economic factors, including education, can moderate the effects of genes. However, little is known about whether more years of education can effectively moderate the relationship between genetic conditions and severe contemporary diseases and medical conditions. I use UK Biobank data to investigate the relationship between education, genetic endowment, and four health conditions: heart attack, cancer, stroke, and type-2 diabetes. To avoid the potential endogeneity of education, I focus on the long-term health consequences of a 1972 increase in the UK school-leaving age (ROSLA). As a measure of genetic endowment, I use an index of genetic predispositions for obesity. Genetic predispositions are typically summarised by a weighted average of individual genetic markers called polygenic scores (PGS), where weights are derived from analyses performed on different populations. Furthermore, the outcomes of these analyses often differ from the outcomes the PGS is used to predict. This may skew the results of follow up studies of other outcomes, including cancer. I introduce a two-step method that adjusts the available weights to new outcomes, and show that genetic predisposition for obesity increases the risks of the four diseases I study. The results based on my new method show that the additional year of schooling driven by the ROSLA reform diminished the importance of genetic predispositions for the risks of cancer and heart attack by 40%. The results offer new evidence on how environments moderate the inequalities in health that have been tilted from birth.

13 Apr
2023

The long-term impact of religion on social capital: lessons from post-war Czechoslovakia

Štěpán Mikula (MUNI) Library, Box 1 Personal website

We exploit a historical experiment that occurred in Czechoslovakia after World War Two to study the drivers of social capital accumulation in an extremely unfavorable environment. Between 1945 and 1948, the Sudetenland became the scene of ethnic cleansing, with the expulsion of nearly three million German speakers and the simultaneous influx of nearly two million resettlers. Focusing on the areas where at least 90 % of the population was forced to leave, we show that the municipalities hosting a church built before 1945 developed significantly higher social capital under the communist rule, which persisted after the dissolution of Czechoslovakia and the current days.

12 Apr
2023

Unsafe temperatures, unsafe jobs: The impact of weather conditions on work related injuries

Mattia Filomena (Masaryk University) ESF Room MT205 Personal website

We estimate the impact of temperatures on work related accident rates in Italy by using daily data on weather conditions matched to administrative daily data on work related accidents. The identification strategy of the causal effect relies on the plausible exogeneity of short-term daily temperature variations in a given spatial unit. We find that both high and cold temperatures impair occupational health by increasing workplace injury rates. The positive effect of warmer weather conditions on work related accident rates is larger for men, in manufacturing and service sectors, and for workplace injuries. Colder temperatures lead to a substantial increase in commuting accidents, especially during rainy days.

23 Feb
2023

The association between cognitive abilities, economic preferences and personality traits

Renata Kosíková (MUNI) Academic club

This paper examines how cognitive and non-cognitive abilities relate to economic preferences. Cognitive abilities are a comprehensive structure of abilities (attention, memory, intelligence, etc.) that are interconnected. From the existing literature, it follows that the level of cognitive abilities has an influence on the decision-making of individuals and can positively or negatively affect their incomes and future economic planning. However, the level of cognitive abilities is not enough to fully understand the individual and his decisions. For this reason, we will also focus on non-cognitive abilities in the research. These are most often characterized by personality traits that are commonly measured by the Big Five test. This test assesses the following personality traits – neuroticism, extraversion, openness, agreeableness, and conscientiousness. Personality traits are another factor that characterizes the overall individuality of a particular individual. However, it is currently unclear how non-cognitive abilities relate to economic preferences. In the presentation, we will introduce the study design and discuss how the relationship between cognitive abilities, personality traits and economic preferences will be investigated.

16 Feb
2023

Competition in the Czech energy sector

Jakub Chini (MUNI) Academic club

With its current skyrocketing prices, electricity costs became one of the most discussed issues over the past year as it is an essential input for any economic activity. Unlike private businesses or consumers, public institutions cannot purchase electricity freely but are bound by a procurement framework and rules on how electricity contracts need to be concluded.

In principle, a public institution can purchase electricity through public tenders or through commodities exchanges. The key question is how the lowest prices can be achieved and which of these procurement options – competition in public tenders or trades at the commodities exchanges – prompts the desired outcome. This contribution aims to investigate this empirically.

We collected unique data on public institutions’ energy contracts in Czechia between 2013 and 2021 from the Czech public registry of procurement deals. The data allows us to distinguish between contracts concluded through public tender or through commodities exchanges, identify the size of the contract and its final price.

Our results suggest that there is generally a higher degree of competition at the commodity exchanges in comparison to public tenders and that the prices at commodity exchanges are lower. Although many factors might result in lower prices, our analyses suggest that the competitiveness of the environment in public tenders and on the commodities exchanges is the main driving factor.

Our findings have important implications for how electricity – an essential production input – should be purchased by public institutions. The results point to possible saving for public institutions when purchasing energy on commodities exchange as compared to public tenders.

7 Feb
2023

Wealth inequality – survey experiment

Filip Červenka (Masaryk University) Academic club

The research explores relationship between perceived wealth inequality and political attitudes. Based on relative deprivation theory, I assume, that information treatment showing actual level of wealth inequality may increase willingness to take part in different political activities and even lead to higher level of anti-system attitudes.
The aim of the presentation is to introduce preliminary results based on collected data and discuss possibilities for further research. Crucial areas to assess are the form of information treatment, and possible narrowing of the target group (from representative sample of Czech population to its specific parts, for example people living in peripheral regions).

12 Jan
2023

Options and Limits of Central Banks’ Policies in the Context of Climate Change

Marián Suchánek (Masaryk University) ESF MUNI, Academic club

In recent years, the debate about central banking and climate change has gained significant momentum. It can be said that central bankers and regulators reached a consensus that climate change will affect central banking but there seems to be no consensus on what should central banks do in reaction. This paper analyses the current debate about the so-called green central banking. It classifies policies of European central banks and prudential regulators that were applied, discussed, or proposed as a reaction to the phenomenon of climate change. The paper is based on annual reports and other official statements of these institutions which are analyzed by textual analysis. The classification should clarify the debate in a broader socio-economic context and offer a common language for climate change-related policies of central banks.

1 Dec
2022

Motivational Effects of Feeling Trusted

Diya Abraham (Masaryk University) ESF Room S310 Personal website

I investigate how workers respond to learning that a manager trusts them less than she does their peers. In a laboratory experiment, responsibility for a manager’s earnings is divided unequally between two workers. I vary whether this responsibility allocation decision is made by the manager, or by a random device on the manager’s behalf. Importantly, being entrusted with more/less responsibility for the manager's payoff does not change the workers' wages. Despite this, I find that workers are less generous toward the manager when they are intentionally, as opposed to randomly, assigned a lower level of responsibility. This effect is mediated by the emotional response to learning that the manager chose to place her trust in the other worker. I find no positive effect of being entrusted with higher responsibility. My results demonstrate that managerial decisions that are materially irrelevant for workers can generate a negative reciprocal response if they reveal to the worker that she is less trusted relative to her peers.

24 Nov
2022

The Role of Social Identity and Perceived Discrimination in Human Capital Formation: Evidence from India

Isha Gupta (Masaryk University) ESF Room S311 Personal website

This study examines the role of historically defined social identity in human capital development over time by focusing on a region from India where social identities are defined along the lines of castes and religious groups. It investigates the evolution of gaps across social groups in children’s cognitive outcomes and parental investment in children’s education from ages 5 to 15. Significant gaps in test scores and parental investment are found between children from lower and upper Hindu castes. These gaps, which originate early in childhood and persist throughout the 10 years of the study period, cannot be completely explained by the differences in socioeconomic status across social groups. Moreover, the perception of social discrimination is also found to be a significant contributor to the gaps in cognitive outcomes and parental investment across social groups. While parents’ perceived social discrimination is associated with lower parental investment throughout childhood, it is negatively associated with children’s cognitive outcomes only at later ages.

14 Jul
2022

Willingness To COVID-19 Vaccination: Empirical Evidence From EU

Arslan Austin on-line

The unforgettable COVID-19 shock can only be reversed by a viable vaccination strategy. In this paper, we investigate the willingness to be vaccinated (WTV) against COVID-19. We provide first-of-its-kind empirical evidence on the citizens (N=11,932) of the EU-27 by employing recent data from the European Commission. Controlling for the correlations in the error terms, we utilize a simulated multivariate probit regression model. Our results show that amongst all the statistically significant drivers of the WTV, the positive perception (vaccination works and has no side effects); R&D information (clarity on how vaccination is developed, tested, and authorized) have the largest impact on the WTV. We find that the group of variables on social feedback, and trustworthy sources of information are to be considered for WTV policy. The counteracting policy gaps are also identified. Our work is novel and has implications for COVID-19 vaccination policies across the EU.

MS-Teams

6 May
2022

Long-range dependence and option pricing

Axel A. Araneda (Masaryk University - Department of Finance - Faculty of Economics and Administration) S311

Abstract: Stochastic processes based on standard Brownian motions can't address an established "stylized fact" in finance: the long-range dependence or memory effect. This issue has stimulated the inclusion of alternative diffusion mechanisms in the price modeling, namely fractional Brownian motion and its relatives. Here, we will revisit the application of fractional-based diffusions for option pricing purposes and its relation with the efficient market hypothesis. Moreover, we will address some further extensions based on multifractional Brownian motions and their capabilities to mimic some financial features, proposing new results around them.

The seminar will be streamed online on MS Teams.

8 Apr
2022

On the long-term intramarket dynamics of market efficiency

Viktor Hřebačka (Masaryk University - Department of Finance - Faculty of Economics and Administration) S311

The seminar will be streamed online on MS Teams.

Abstract: In this paper, I investigate the long-term dynamics of informational market efficiency between portfolios of different levels of market capitalisation. The convergence in market efficiency between portfolios, represented by different S&P and FTSE indices, can be observed in time. However, the convergence was mostly completed by 2006. An asymmetrical response to shock is observed between portfolios. Lower capitalised portfolios were more negatively affected by them. A positive relationship between market efficiency and market capitalisation was observed for all indices, however, the market efficiency of S&P 500 was lower than that of S&P 400 and S&P 600 from 2006 onward.

18 Mar
2022

Russia’s Ruble during the onset of the Russo - Ukrainian war: The role of Implied volatility and Attention

Štefan Lyócsa (Institute of Financial Complex Systems, Masaryk University) P302a

The seminar will be streamed online on MS Teams.

Abstract: This paper aims to verify if the price fluctuation of the Ruble during the onset of the Russo-Ukrainian crisis was predictable, as indicated via implied volatility and investor's (general population's) attention. It uses high-frequency attention, implied volatility, and price data and provides evidence that both attention and implied volatility are relevant for predicting price fluctuations in the short run.

Previous 1 2 3 4 Next Current events

You are running an old browser version. We recommend updating your browser to its latest version.