634 research outputs found

    Applicative Approach to Risk Management

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    Order, symmetries, correspondences and proportionalities that served ashypothesis for any economical theories are frequently infirmed by the contemporary reality. The new theoretical approaches take into consideration chaos, as an endogenous feature of simple nonlinear systems and synergetic of some minor variabilities with multiple resonance and interactions that could induce major changes in the systems behaviour. The higher the variability of a phenomenon, the higher is the probability not to obtain the estimated result. The expansion of globalized markets at planetary level and the volatility of some variables that have an impact on the whole system expose any business to an entire range of risks, thus the businesses administrations have the responsibility of risk management and avoiding of the blending of exogenous and endogenous risks, as an absolute condition of survival.risk, interaction, management, risk evaluation, decision.

    Determinism in Assessing the Consumer’s Ecological Behaviour

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    The discrepancy between the amplitude of erosive processes set off in the environment and the level of the measures taken to stop or to counter-balance the pollution effects, limited by the way of life, technologies, knowledge and conscience, entails high demands for the society as a whole and for each individual. This approach aims the addressing of the issue of consumer’s ecological behaviour as a process of conscious assumption of responsibilities for environmental preservation and manifestation of attitudes oriented to promoting the values of the ecosystem and delimitation of specific behavioural typology. In this respect, we proceeded at the holistic analysis of the domain’s inherent and specific conditions that allowed detection of influencing factors of the adoption of an ecological behavior and their synthetic structure into three groups of determinants: economic, psychosocial and organizational. In these three major coordinates, there are designed types of ecological behaviour, their effectiveness being at the intersection of the projections of different degrees of intensity considered on the chosen axes. Based on deductive reasoning there can be determined orthoscopic actions that are focused on eliminating the cause that generated behavioural deviations.ecological behaviour, determinants of ecological behaviour, typology of ecological behaviour, ecosystem relationship

    Characteriologic Context of Service Assessment

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    Powerfully marked concept by the new economic paradigm, the service quality imply and economic parameters and psycho-social dimensions, leading to a multidisciplinary, sectorial and sequentially approach, in an effort to create an object-oriented reference framework to ensure recognition by the consumer and social accreditation. Service diversity and specificity require the evaluation and the analysis of the quality based on typological coordinates of definition operationalization. The conceptualization of quality is characterized by dynamism, systemic approach, integrating and procedural feature in an evaluative-comparative approach. The fundamental importance of quality in the competitiveness and prosperity of an enterprise resulted into the completeness of its approach as overall quality across the entire lifecycle and on the level of every organizational structure, its acknowledgement on top management level attaining at the consumers’ as well as own employees’ satisfaction. As a dichotomy approach, the evaluation of quality is performed in the context of its perception relativization by the consumer’s standards of quality and by services standards of the provider, requiring the implementation of some value-regulatory systems specific to the types of services on sectorial and private level. The simplex of values, granting identity of appreciation tends, in time, by its cognitive balance to preserve a common definition basis of quality and to and to complementarize through the motivational balance, the interests of the consumer and the provider, noting that the economic operator’s margin is determined by the perceived performance.quality; need; satisfaction; utility; value; simplexy of values.

    The Adjustment of Expectations to a Change in Regime: A Study of the Founding of the Federal Reserve

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    The founding of the Federal Reserve System in 1914 led to a substantial change in the behavior of nominal interest rates. We examine the timing of this change and the speed with which it was effected. We then use data on the term structure of interest rates to determine how expectations responded. Our results indicate that the change in policy regime was rapid and that individuals quickly understood the new environment they were facing.

    Historical Perspectives on the Monetary Transmission Mechanism

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    This paper examines changes over time in the importance of the lending channel in the transmission of monetary shocks to the real economy. We first use a simple extension of the Bernanke-Blinder model to isolate the observable factors that affect the strength of the lending channel. We then show that based on changes in the structure of banks assets, reserve requirements, and the composition of external firm finance, the lending channel should have been stronger before 1929 than during the post-World War II period, especially the first half of this period. Finally, we demonstrate that conventional indicators of the importance of the lending channel, such as the spread between the loan rate and the bond rate and the correlation between loans and output, do not show the predicted decline in the importance of lending over time. From this we conclude that either the traditional indicators are not useful measures of the strength of the lending channel or that the lending channel has not been quantitatively important in any era.

    On-line blind unmixing for hyperspectral pushbroom imaging systems

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    International audienceIn this paper, the on-line hyperspectral image blind unmixing is addressed. Inspired by the Incremental Non-negative Matrix Factorization (INMF) method, we propose an on-line NMF which is adapted to the acquisition scheme of a pushbroom imager. Because of the non-uniqueness of the NMF model, a minimum volume constraint on the endmembers is added allowing to reduce the set of admissible solutions. This results in a stable algorithm yielding results similar to those of standard off-line NMF methods, but drastically reducing the computation time. The algorithm is applied to wood hyperspectral images showing that such a technique is effective for the on-line prediction of wood piece rendering after finishing. Index Terms— Hyperspectral imaging, Pushbroom imager, On-line Non-negative Matrix Factorization, Minimum volume constraint
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