744 research outputs found

    Personal insolvency dynamics in Germany and the UK: A SUR-TAR approach

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    This paper analyses the dynamics of personal insolvencies in Germany and the UK, focusing on the recent recession. These countries are particularly interesting as they are both member countries of the European Union, yet have completely different approaches to deal with overindebted individuals. In Germany unfortunate households who file on their debt are required to undergo a relatively long restructuring period until they eventually receive debt relief, whereas British debtors can choose proceeding out of many alternatives to manage their debt. Even under the official bankruptcy option, debt gets discharged relatively fast. In line with their different insolvency procedures, the two countries also represent two different financial systems: the German system is rather bank-based and the UK system rather market-based. The underlying financial systems already point to different patterns of lending across countries and hence, also to different structures of debt. Specifically, we are interested in the dynamics of petitions and actual insolvencies during the crisis as well as their reaction to exogeneous macroeconomic and financial conditions. The findings suggest that insolvencies are more persistent in the UK than in Germany, i.e. after an external shock it takes longer for insolvencies to return to their previous level in the UK. In both countries, the recent recession has no effect on petitions to default, but it has an effect on actual insolvencies in the UK suggesting that debtors rather opted for official procedures during the recession

    Household debt and macrodynamics: How do income distribution and insolvency regulations interact?

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    Using agent-based simulation methods we explore the interplay between income distribution, personal insolvency regulations and household borrowing focusing on the effects on macroeconomic dynamics. In order to capture the empirically observed distribution of income and wealth, we model them by means of a Generalised Pareto Distribution. In the presence of social comparison effects, the insolvency regime decides on lower income households' incentives to expose themselves to possibly unsustainable levels of debt. Our main findings can be summarised as follows: for both, creditor friendly and debtor friendly regimes, higher skewness in the distribution of income and wealth leads to an increase in the number of defaults and to lower levels of GDP. Comparing the two regimes, we observe a higher number of defaults and higher aggregate debt under pro-debtor laws given the same starting values for the distribution of income. While debt-financed consumption leads to higher levels of GDP under pro-debtor policies, over-borrowing low-income households put a downward pressure on economic growth. The opposite is true for pro-creditor policies, where we observe positive GDP growth rates, as they prevent households from taking up unsustainable levels of debt ex ante

    Catching up with the Joneses and Borrowing Constraints: An Agent-based Analysis of Household Debt

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    We study an Agent-based model of household-bank relationships where households borrow for the purpose of consumption. Desired consumption is driven by households disposable income as well as a social norm of consumption. If households care about their relative position in the economy (i.e. want to catch up with the Joneses), they are willing to take a loan. We conduct several computational experiments, where the absence of the social consumption norm (Joneses effect) functions as control treatment. Varying the strength of the social orientation and prevailing credit constraints, we find that the time path of macroeconomic time series is largely affected by the Joneses effect, while credit constraints determine their volatility. More precisely, we find that a strong Joneses effect has severe consequences for GDP growth and that borrowing constraints can reduce macroeconomic volatility. Since by assumption high-income and low-income households react equally sensitive to the Joneses effect, income distribution is the decisive variable for households social development. That said, access to credit exposes already poor households to find themselves caught in a poverty trap

    Citizen science as a bottom‐up approach to address human–wildlife conflicts: From theories and methods to practical implications

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    Although biodiversity conservation is a prioritized topic globally, agreements and regulations at multiple levels often fail to meet the desired effects due to insufficient knowledge transmission about and tolerance toward environmental protection measures among the public. To find effective measures to solve human-wildlife conflicts (HWCs) and promote a sustainable coexistence, it is essential to gain the public's understanding of the importance of preserving biodiversity. To spur progress in solution-oriented conservation science, we examine how citizen science (CS) can complement research in the HWC field and coexistence/mitigation strategies. We find that CS (1) is an effective tool for gathering wildlife data and (2) empowers citizens to participate in or drive (in a bottom-up manner) wildlife research and management. Each HWC has a unique social, economic, and geographical context, which makes it challenging to find appropriate mitigation measures. We developed a Global and Local Geographic (GLG) model that provides practical guidelines for implementing CS in HWC research. We argue that the inclusion of youth is fundamental to achieving coexistence between people and wildlife; thus integrating CS into formal education or including an educational component in CS projects can support the sustainable conservation of wildlife species and foster environmentally aware future generations

    Towards Photochromic Azobenzene‐Based Inhibitors for Tryptophan Synthase

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    Light regulation of drug molecules has gained growing interest in biochemical and pharmacological research in recent years. In addition, a serious need for novel molecular targets of antibiotics has emerged presently. Herein, the development of a photocontrollable, azobenzene‐based antibiotic precursor towards tryptophan synthase (TS), an essential metabolic multienzyme complex in bacteria, is presented. The compound exhibited moderately strong inhibition of TS in its E configuration and five times lower inhibition strength in its Z configuration. A combination of biochemical, crystallographic, and computational analyses was used to characterize the inhibition mode of this compound. Remarkably, binding of the inhibitor to a hitherto‐unconsidered cavity results in an unproductive conformation of TS leading to noncompetitive inhibition of tryptophan production. In conclusion, we created a promising lead compound for combatting bacterial diseases, which targets an essential metabolic enzyme, and whose inhibition strength can be controlled with light

    Towards an Ecological Trait-data Standard

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    Trait-based approaches are widespread throughout ecological research, offering great potential for trait data to deliver general and mechanistic conclusions. Accordingly, a wealth of trait data is available for many organism groups, but, due to a lack of standardisation, these data come in heterogeneous formats. We review current initiatives and infrastructures for standardising trait data and discuss the importance of standardisation for trait data hosted in distributed open-access repositories. In order to facilitate the standardisation and harmonisation of distributed trait datasets, we propose a general and simple vocabulary as well as a simple data structure for storing and sharing ecological trait data. Additionally, we provide an R-package that enables the transformation of any tabular dataset into the proposed format. This also allows trait datasets from heterogeneous sources to be harmonised and merged, thus facilitating data compilation for any particular research focus. With these decentralised tools for trait-data harmonisation, we intend to facilitate the exchange and analysis of trait data within ecological research and enable global syntheses of traits across a wide range of taxa and ecosystems

    Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

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    Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

    Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

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    Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

    Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

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    One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

    Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

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    This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good
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