Does Gibrat's law hold for retailing? Evidence from Sweden

Gibrat's Law predicts that firm growth is a purely random effect and therefore should be independent of firm size. The purpose of this paper is to test Gibrat's law within the retail industry, using a novel data-set comprising all surviving Swedish limited liability companies active at some point between 1998 and 2004. Very few studies have previously investigated whether Gibrat's Law seems to hold for retailing, and they are based on highly aggregated data. Our results indicate that Gibrat's Law can be rejected for a large majority of five-digit retail industries in Sweden, since small retail firms tend to grow faster than large ones.     

Rechtlich-normative Rahmenbedingungen der Regierungskommunikation – ein Thema für die Publizistik- und Kommunikationswissenschaft

Governmental public relations, the tax-funded political communication by administrative bodies in Germany, can very well be described as an area of constant conflict. Actors are legally obliged to communicate their policies and decisions to the electorate; on the other hand there is the constant peril of infringements of democratic rights of oppositional actors through communicative measures. Major juridical debates have arisen. Communication studies have approached the subject of legal restrictions of governmental public relations rather cautiously so far. With the issue becoming more and more salient—especially due to the accelerating process of digitisation—the question of whether this is still satisfactory gains importance. This paper is to stimulate a debate. It highlights connections and delimitations between the different perspectives and points out the possible contributions of communication studies to the establishment of valid normative and legal frameworks and the emerging fields of research for the discipline itself.     

Deregulation and the determinants of network access: evidence from the German interurban bus industry

We investigate the characteristics of cities gaining access to the German interurban bus network in the first two years following the deregulation of the industry in January 2013. Applying both parametric and semi-parametric survival models, we find strong evidence that the probability of a city to be added to a provider’s network increases not only with the mere size of its population but also with further demographic characteristics such as average income or the share of young and old inhabitants. Additionally, while an increasing importance of tourism has a further positive effect, a rising automobile density is imposing a significantly negative impact on the probability of a city to gain access to the network.     

Surprise volume and heteroskedasticity in equity market returns

Heteroskedasticity in returns may be explainable by trading volume. We use different volume variables, including surprise volume—i.e. unexpected above-average trading activity—which is derived from uncorrelated volume innovations. Assuming weakly exogenous volume, we extend the Lamoureux and Lastrapes () model by an asymmetric GARCH in-mean specification following Golsten et al. (). Model estimation for the US as well as six large equity markets shows that surprise volume provides superior model fit and helps to explain volatility persistence as well as excess kurtosis. Surprise volume reveals a significant positive market risk premium, asymmetry and a surprise volume effect in conditional variance. The findings suggest that e.g. a surprise volume shock (breakdown)—i.e. large (small) contemporaneous and small (large) lagged surprise volume—relates to increased (decreased) conditional market variance and return.     

Does government ideology influence budget composition? Empirical evidence from OECD countries

This paper examines whether government ideology has influenced the allocation of public expenditures in OECD countries. I analyze two datasets that report different expenditure categories and cover the time periods 1970–1997 and 1990–2006, respectively. The results suggest that government ideology has had a rather weak influence on the composition of governments’ budgets. Leftist governments, however, increased spending on “Public Services” in the period 1970–1997 and on “Education” in the period 1990–2006. These findings imply, first, that government ideology hardly influenced budgetary affairs in the last decades, and thus, if ideology plays a role at all, it influences non-budgetary affairs. Second, education has become an important expenditure category for leftist parties to signal their political visions to voters belonging to all societal groups.