The prevalent, and so far most explored, host defense against brood parasitism is egg discrimination. Not only do the hosts differ markedly in their propensity to reject parasitic eggs but rejecters even vary in their egg rejection times. The focus of the present study was to investigate factors...

An increasing variety of data frequencies available in economics, finance, etc. gives rise to a question how to build and estimate a regression model with variables observed at different frequencies. In a unifying framework of ("m,d")-aggregation we consider various approaches by discussing some...

<heading format="display" id="h1" implicit="yes" level="1">Abstract</heading> Firm productivity and export decisions are closely related to innovation activity. Innovation may play a more important role in the decision to start exporting, and successful exporting may drive process innovation. This suggests that the causality between innovation and exporting may...

Since the early 1990s, due to increasing immigration to the Czech Republic, a middleman system has been established in order to organise (irregular) labour of migrants mostly from Ukraine. Due to its extent, the breadth of activities involved and interconnection with Mafia structures, this...

We present a statistical model for construction and application of standardized load profiles. Standardized load profile curves give a typical natural gas consumption pattern throughout a year in various time resolutions. Our semiparametric regression model uses three types of information,...

This paper offers a new method for estimation and forecasting of the volatility of financial time series when the stationarity assumption is violated. Our general, local parametric approach particularly applies to general varying-coefficient parametric models, such as GARCH, whose coefficients...

Backward linkages of foreign subsidiaries with their local suppliers prove to be one of the main channels of knowledge spillovers via foreign direct investment. This paper analyses the potential of backward linkages of foreign subsidiaries in Slovenia for the transfer of technology and for the...