Search results for "Econometrics"
showing 10 items of 3730 documents
Retuning the Nordic Welfare Municipality: Central Regulation of Social Care under Change in Finland
2011
Purpose – The purpose of this paper is to analyse the changes that have taken place in the central regulation of social care in Finland since the 1970s. The changes in vertical central‐local relations are discussed in the context of economic and welfare state development.Design/methodology/approach – The paper is a case study, applying the concept of “the Nordic welfare municipality” to the case of Finland. With this concept, the author refers to the inherently contradictory character of the Nordic model of welfare governance: to a system that emphasises local self‐government but that, at the same time, perceives regional harmonisation as imperative.Findings – After strong central control d…
The transformation of the Russian defence industry
1995
TRADITIONALLY, THE DEFENCE INDUSTRY constituted the most powerful industrial lobby in the USSR, with an administrative structure at all the organisational levels where its interests could be affected. With a hierarchical and pyramidal structure, the different entities of the sector remained isolated from strictly civilian bodies. The strategic part it played within the organisation of the Soviet Union enabled the defence industry to manage a growing and important volume of resources; on the one hand, it had a special supply system which guaranteed regular high-quality provision of the most advanced technology in the country, as well as highly qualified human resources. On the other hand, th…
Is there an environmental Kuznets curve for Spain? Fresh evidence from old data
2012
Abstract The information content of the environmental Kuznets curve (EKC) is subject to change over time and all the empirical modeling work that does not take into account the possible variations and instabilities may fail to explain the variations in the per-capita CO2 and per-capita income relationship. In this paper we consider the possibility that a linear cointegrated regression model with multiple structural changes would provide a better empirical description of the Spanish EKC during the period 1857–2007. Our methodology is based on instability tests recently proposed in Kejriwal and Perron (2008, 2010) as well as on cointegration tests developed in Arai and Kurozumi (2007) and Kej…
Aggregate Behavior and Microdata
2004
Abstract It is shown how one can effectively use microdata in modelling the change over time in an aggregate (e.g. mean consumption expenditure) of a large and heterogeneous population. The starting point of our aggregation analysis is a specification of explanatory variables on the micro-level. Typically, some of these explanatory variables are observable and others are unobservable. Based on certain hypotheses on the evolution over time of the joint distributions across the population of these explanatory variables we derive a decomposition of the change in the aggregate which allows a partial analysis: to isolate and to quantify the effect of a change in the observable explanatory variab…
Exchange rates expectations and chaotic dynamics: a replication study
2018
Abstract In this paper the author analyzes the behavior of exchange rates expectations for four currencies, by considering a re-calculation and an extension of Resende and Zeidan (Expectations and chaotic dynamics: empirical evidence on exchange rates, Economics Letters, 2008). Considering Lyapunov exponent-based tests results, they are not supportive of chaos in exchange rates expectations, although the so-called 0–1 test strongly supports the chaos hypothesis.
Contagion in Bitcoin Networks
2019
12 pages, 6 figures. Paper accepted in 2nd Workshop on Blockchain and Smart Contract Technologies (BSCT 2019), workshop satellite of 22nd International Conference on Business Information Systems (BIS 2019); International audience; We construct the Google matrices of bitcoin transactions for all year quarters during the period of January 11, 2009 till April 10, 2013. During the last quarters the network size contains about 6 million users (nodes) with about 150 million transactions. From PageRank and CheiRank probabilities, analogous to trade import and export, we determine the dimensionless trade balance of each user and model the contagion propagation on the network assuming that a user go…
Data Treatment in Kinetics
2000
Chemical kinetics is an important part of chemistry devoted to study how reactions proceed and quantify the rate of the process. The reaction mechanism is the chemical model that describes how the chemical change occurs. From the proposed mechanism, a mathematical model can be obtained to explain the evolution of the chemical species with time. In many cases, the mechanism can be simplified to a single rate law that relates the reaction rate with concentrations. In the last decades, the study of kinetic systems has benefited from the development of instrumentation, the increasing availability of specialized computer software, and the advances in data treatment techniques. A comprehensive re…
Multivariate data analysis and bivariate regression studies applied to comparison of two multi-elemental methods for analysing wine samples
2002
Two inductively coupled plasma mass spectrometry (ICP-MS) methods which permit multi-elemental analysis in wine samples have been compared following two strategies. First, a multivariate tool based on principal component analysis (PCA) was employed for a global (all analytes) qualitative comparison of the two methods. A single plot based on the confidence limits of the Q and T2 PCA model statistics corresponding to the ‘standard’ method results (calibration set) was used to check the comparability of the ‘candidate’ method (test samples). The residual matrix (after test matrix interpolation into the PCA model) gives qualitative information about the nature of the main errors. This approach …
Saving in childhood and adolescence: Insights from developmental psychology
2013
Abstract This paper addresses variables related to child and adolescent saving and explains the development of skills and behaviors that facilitate saving from an economic socialization perspective. References are made to the differences between the economic world of children, adolescents, and adults as well as to existing theories of saving. Children's and adolescents’ ability and willingness to save are looked at, taking into account the social context of the family and general child and adolescent development. The paper concludes with directions for future research in this area.
Child mortality and fertility: public vs private education
2009
How does the effect of child mortality reductions on fertility and education vary across educational systems? To answer this question, we develop an overlapping-generations model where altruistic parents care about both the number and human capital of their surviving children. We find that, under a private education system, if income is low initially, the economy converges to a Malthusian stagnation steady state. For a high level of initial income, the economy reaches a growth path in which children’s education rises and fertility decreases with income. In the growth regime under private education, exogenous shocks that lower child mortality are detrimental for growth: fertility increases a…