The local aspect of aging is often ignored. However, municipalities, in particular cities will be affected by the consequences of population aging, in particular a decrease in tax revenues and an increase of expenditures on public goods demanded by the elderly. In this paper we use a static general equilibrium model to analyse the impact of aging on city’s finances. We show that an increase in the number of pensioners will raise the cost of public goods. However, an increase in the number of working elderly can alleviate the situation.
In this paper results of microstructural observations for series of CuZn39Pb2 alloys produced from qualified scraps are presented. The individual alloy melts were differentiated in terms of thermal parameters of continuous casting as well as refining methods and modifications. Structural observations performed by SEM and TEM revealed formation of different types of intermetallic phases including “hard particles”. EDS results show that “hard particles” are enrich in silicon, phosphorus, iron, chromium and nickel elements. Additionally, formation of Al-Fe-Si and Al-Cr in alloy melts was observed as well. It was found that quantity and morphology of intermetallic phases strongly depends upon the chemical composition of raw materials, process parameters, modifiers and refining procedure applied during casting. It was observed that refining process results in very effective refinement of intermetallic phases, whereas modifiers, particularly carbon-based, results in formation of large particles in the microstructure.
This essay contains reflections on the problems of discourse that appear in analyzing written historical sources. The author refers to Krzysztof Gajewski’s book, Reprezentacje komunizmu. PRL z perspektywy badań literackich i kulturowych [The Representation of Communism: The PPR from the Perspective of Literary and Cultural Studies] (2018). The primary findings concern the necessity of taking into account the linguistic framework of the given era.
The author reflects on the evaluation of the notion of money in history. In many situations coins and banknotes were a proof for the existence of local, independent, political power. People’s attitude toward money was quite an important matter, too; in many situations neither money nor those professionally dealing with money were appreciated socially. Numerous utopian movements disliked money. Communism was one of them. The communist economy was driven — at least in theory — by overwhelming planning rather than by the incentive of money. After the fall of communism a question arised whether all or nearly all public activity should be driven by money or whether some domains of social activity should rather be kept as public domains.
This article is a review of Ethan Kleinberg’s Haunting History. For a Deconstructive Approach to the Past (Stanford, 2017). I focus on three issues related to that work. These are: historians’ attitude towards the deconstruction; the idea of ontological realism and its critique; the role of young historians in modern academia. This text is based not only on the book reviewed but also on its different analyses and ways it was used in other research. In the conclusion, I present how Haunting History can be used as an emancipatory tool by scholars who are starting their academic careers now.