Publikationen des Vorstandsbereichs

Heteroskedastic Structural Vector Autoregressions Identified via Long-Run Restrictions

A central assumption for identifying structural shocks in vector autoregressive (VAR) models via heteroskedasticity is the time-invariance of the impact effects of the shocks. It is shown how that assumption can be tested when long-run restrictions based on the cointegration structure of the variables are available for identifying structural shocks. The importance of performing such tests is illustrated ...

Partial Identification of Structural Vector Autoregressions with Non-Centred Stochastic Volatility

We consider structural vector autoregressions that are identified through stochastic volatility under Bayesian estimation. Three contributions emerge from our exercise. First, we show that a non-centred parameterization of stochastic volatility yields a marginal prior for the conditional variances of structural shocks that is centred on homoskedasticity, with strong shrinkage and heavy tails—unlike ...

Avoiding Unintentionally Correlated Shocks in Proxy Vector Autoregressive Analysis

Noting that the shocks in vector autoregressive models can be correlated if a number of shocks is identified individually by multiple proxy variables, we propose a Generalized Method of Moments (GMM) approach for estimation that enforces uncorrelated shocks. We point out that if each proxy identifies exactly one shock and is uncorrelated with all other shocks, uncorrelatedness of the shocks provides ...

The Reputation Effect of Repeated Green-Bond Issuance and Its Impact on the Cost of Capital

This study explores the effect of frequent green-bond issuance on a firm's financing costs. Using a sample of listed Swedish real estate companies issuing a total of 1074 bonds over the period from 2011 to 2021, difference-in-differences analyses and instrumental variable estimations are applied to identify the causal impact of frequent green-bond vis-à-vis frequent non-green-bond issuance on a firm's ...

Comparing External and Internal Instruments for Vector Autoregressions

In conventional proxy VAR analysis, the shocks of interest are identified by external instruments. This is typically accomplished by considering the covariance of the instruments and the reducedform residuals. Alternatively, the instruments may be internalized by augmenting the VAR process by the instruments or proxies. These alternative identification methods are compared and it is shown that the ...

Home Bias, Sovereign-Bank Nexus and Bank Failure: Evidence from European Stress Tests

This paper proposes a new way to clarify the relationship between the sovereign-bank nexus and an individual bank’s home bias by employing stress test data from Europe’s most important banks. We use the individual bank’s likelihood to fail in achieving a minimum capital ratio threshold as the dependent variable in a cross-sectional logistic regression approach and compute marginal effects. In further ...

The Role of Regulation and Regional Government Quality for High Growth Firms: The Good, The Bad, and the Ugly

High-growth firms (HGFs) are important for job creation and productivity growth. We investigate the relationship between product and labour market regulations, as well as the quality of regional governments that implement these regulations, and the development of HGFs across European regions. Using data from Eurostat, the Organisation for Economic Co-operation and Development (OECD), World Economic ...

SOEP-LEE2: Linking Surveys on Employees to Employers in Germany

This article presents the new linked employee-employer study of the Socio-Economic Panel (SOEP-LEE2), which offers new research opportunities for various academic fields. In particular, the study contains two waves of an employer survey for persons in dependent work that is also linkable to the SOEP, a large representative German annual household panel (SOEP-LEE2-Core). Moreover, SOEP-LEE2 includes ...

Access to Digital Finance: Equity Crowdfunding across Countries and Platforms

Financing entrepreneurship spurs innovation and economic growth. Digital financial platforms that crowdfund equity for entrepreneurs have emerged globally, yet they remain poorly understood. We model equity crowdfunding in terms of the relationship between the number of investors and the amount of money raised per pitch. We examine heterogeneity in the average amount raised per pitch that is associated ...

German Financial State Aid during Covid-19 Pandemic: Higher Impact among Digitalized Self-Employed