Showing 23,061 - 23,070 of 23,269
This paper measures price-cost margins (PCM) at firm level by using balance sheet data. These measures, once aggregated at industry level, provide values close to the ones obtained through the estimation method proposed by Roeger (1995). The advantage of a firm-level measure is that it allows to...
Persistent link: https://www.econbiz.de/10011158143
arising from global society. The results from this experiment support the hypothesis that a wealth aggregation evolutionary …
Persistent link: https://www.econbiz.de/10011158392
. We start from a micro-level Markov chain description of the model. Markov chain aggregation is then used to derive a … processes and their aggregation to a macroscopic level of description and informs about the complexity of a system introduced by …
Persistent link: https://www.econbiz.de/10011163284
Assessment. The approach incorporates price effects, food quality variation across income deciles, and consistent aggregation … available price data. Beyond exact aggregation, the framework exhibits desirable characteristics: food quality is increasing …
Persistent link: https://www.econbiz.de/10011167752
We present an extension to two dimensions of a one-dimensional model for a fluid that drags particles in a narrow channel [V. Ruiz Barlett, M. Hoyuelos, H.O. Mártin, Physica A 387 (2008) 4623–4629]. We consider a network of narrow channels on a strip. There is a flux rate J of particles that...
Persistent link: https://www.econbiz.de/10011057242
A random aggregation model with influx is proposed for the formation of the non-coding DNA regions via random co-aggregation … correlations. For the formation of coding DNA a random closed aggregation model is proposed which predicts short range coding size … distributions. The closed aggregation process drives the system in an almost “frozen” stable state which is robust to external …
Persistent link: https://www.econbiz.de/10011058787
We consider a fluid that drags impurities in a narrow channel. The impurities are particles of a size comparable to the channel diameter. When two particles collide they produce a cluster that cannot move through the medium and remain immobile. When the accumulation of clusters saturate the...
Persistent link: https://www.econbiz.de/10011059069
interactions between side-groups with the same charge. We have extensively studied the aggregation of synthetic porphyrins, which … modulated on changing the medium properties. Here we report on a kinetic study of such aggregation behavior on varying the salt …
Persistent link: https://www.econbiz.de/10011059838
aggregation is counterbalanced by size dependent break-up. The model used in the study is a simple reaction kinetic model … the growth process, where aggregation driven cluster growth is poised on the edge of cluster break-up. …
Persistent link: https://www.econbiz.de/10011060826
aggregation on the boundary of a shear flowing colloidal solution. The trajectories of the aggregating particles are determined by …
Persistent link: https://www.econbiz.de/10011061435