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This study aims to discuss the understanding of hadith about the value of money in the perspective of Islamic economics. This research applies a qualitative type through literature study using thematic, takhrij, and syarah hadith methods as well as descriptive analysis. The discussion of this research includes an overview of money, thematic hadiths regarding money, and an understanding of the hadith about the value of money from an Islamic economic perspective in the contemporary era. This study concludes that the money used by Muslims at the time of the Prophet was Persian silver dirhams and Roman gold dinars, traditions about money are known to be maqbul traditions and can be used as evidence, and the understanding of hadiths about the value of money is closely related to buying and selling and selling. an effective prohibition of usury for controlling inflation so that people's purchasing power is maintained and economic stability is created, in this case Islamic economics which emphasizes increasing people's welfare is recognized in this contemporary era dealing with money politics with the ideology of capitalism.

[64] p. ; Roderyck Mors = Henry Brinkelow. ; The imprint (from colophon) is false; printed in Strasbourg by Wolfgang Köpfel (STC). ; Publication date conjectured by STC. ; Signatures: A-H. ; Identified as STC 3762 on UMI microfilm. ; Reproduction of the original in the British Library.

International audience ; Les dépenses liées à la commande publique2 représentent en moyenne 12 % du PIB et près d'un tiers des dépenses publiques dans les pays de l'OCDE. À l'échelle de la France, les seuls marchés publics représentent quelques 250 000 marchés, publiés chaque année pour un montant estimé de 80 milliards d'euros, soit 5 % du PIB. Les enjeux économiques sont considérables, plus de 100 000 entreprises sont ainsi concernées.Les marchés publics sont par ailleurs une activité complexe. Il ne s'agit pas seulement d'un acte d'achat. On peut le voir comme une longue chaîne de décision - de l'identification des besoins à la détermination de la structure la mieux à même d'y répondre, puis à la facturation, au suivi et contrôle de la procédure, qui doivent toutes respecter un formalisme, visant à assurer son caractère équitable et transparent. La complexité des marchés publics s'observe également à travers l'extraordinaire diversité des acteurs impliqués dans les processus. Responsables des marchés publics et fournisseurs, mais aussi décideurs politiques, organismes de contrôle, soumissionnaires et citoyens sont tous, à leur échelle, et pour des objectifs qui leurs sont propres, partie prenante. Modifier les règles, les adapter aux évolutions technologiques a des conséquences notamment économiques et juridiques considérables. Ainsi, s'assurer que la dématérialisation de la commande publique, et en particulier celle des marchés publics, permet d'atteindre les objectifs assignés revêt une importance considérable.

ABSTRACT Objectives: this theoretical essay aims to present classic and contemporary fundamentals of the optimal tax theory (OTT) and to problematize its presence and possibilities in the scenario of tax policy in Brazil. Context: such objectives are located in the contemporary context that discusses tax reforms aimed at efficient and socially responsible public management. Methods: after surveying the state of knowledge of optimal taxation in Brazil, and from the perspective of economics and political law, we sought to identify secondary data on tax distribution in Organization for Economic Co-operation and Development (OECD) countries in relational analysis with data from Brazil. Results: the text draws attention to the fact that OTT is able to bring social issues to the discussion of public tax management policies in a structured way, with the perspective of inclusion and social responsibility, based on the importance of different treatment of economic agents, physical and legal, based on their needs and possibilities. Conclusion: it is concluded that, like in other countries, OTT is present in the Brazilian debate expressing as possible and necessary to advance in a tax policy that responds to the needs of public collection articulated and reconciled to social well-being through responsible management, modern and transparent.

PowerDynamics.jl is a Julia package for time-domain modeling of power grids that is specifically designed for the stability analysis of systems with high shares of renewable energies. It makes use of Julia's state-of-the-art differential equation solvers and is highly performant even for systems with a large number of components. Further, it is compatible with Julia's machine learning libraries and allows for the utilization of these methods for dynamical optimization and parameter fitting. The package comes with a number of predefined models for synchronous machines, transmission lines and inverter systems. However, the strict open-source approach and a macro-based user-interface also allows for an easy implementation of custom-built models which makes it especially interesting for the design and testing of new control strategies for distributed generation units. This paper presents how the modeling concept, implemented component models and fault scenarios have been experimentally tested against measurements in the microgrid lab of TECNALIA. ; This research has been performed using the ERIGrid Research Infrastructure and is part of a project that has received funding from the European Union's Horizon 2020 Research and Innova-tion Programme under the Grant Agreement No. 654113. The support of the European Research Infrastructure ERIGrid and its partner TECNALIA is very much appreciated. We further acknowl-edge the Support by BMBF(CoNDyNet2FK.03EK3055A), the DFG (ExSyCo-Grid, 410409736), the Leibniz competition (T42/2018) and the Federal Ministry of Economics (MAriE, FK. 03Ei4012B).

Funding Information: This work was supported as part of the Strategic Research Programme of the Scottish Government Rural and Environment Science and Analytical Services (RESAS) division, Theme 3: Food and Health (Work packages 3.2 and 3.3). ; Peer reviewed ; Publisher PDF

This paper aims to investigate the concept, context and socio-economic consequences of fiscal competition in the integrated economic space of EMU in completion, to pinpoint the positive and negative factors at work via a case study of the Benelux countries – both founder members of the EU and pioneers of EMU – and to examine the impact on European and international regulations in the field. In particular, it will endeavour to provide a comprehensive interpretation of fiscal policy in the Benelux countries via a comparative approach and from a historical perspective. It will look at the development of respective domestic fiscal policies, driven by national interests and by membership of a Community that is subject to requirements in terms of harmonisation and taxation, but also by constant contact (and frequent clashes) with the multilateral international environment.