What determines the extent of fiscal decentralization ? The Russian paradox

The paper provides an empirical analysis of the determinants of fiscal decentralization within Russian regions in 1994-2001. The conventional view that more decentralized governments are found in regions and countries with higher income, higher ethnolinguistic fractionalization, and higher levels of democracy is not supported by the data. This motivates a more refined analysis of the determinants of decentralization that points to the link between decentralization and the structure of regional government revenue: access to windfall revenues leads to a more centralized governance structure. The degree of decentralization also depends positively on the level of urbanization and regional size and negatively on income and general regional development indicators such as the education level.National Governance,Banks&Banking Reform,Municipal Financial Management,Economic Theory&Research,Regional Governance

How Should Subnational Government Borrowing Be Regulated?Some Cross-Country Empirical Evidence

Countries have adopted various institutional responses to subnational government borrowing. Using a sample of 43 countries over the period 1982-2000, this paper provides a panel data analysis to determine the most effective borrowing constraints for containing local fiscal deficits. The results suggest that no single institutional arrangement is superior under all circumstances. The appropriateness of specific arrangements depends on other institutional characteristics, particularly the degree of vertical fiscal imbalance, the existence of any bailout precedent, and the quality of fiscal reporting. Copyright 2006, International Monetary Fund

Employment Concentration and Resource Allocation: One-Company Towns in Russia

The paper looks at the effects of employment concentration on resource allocation with a particular focus on one-company towns in Russia defined as towns where a single company accounts for a significant share of total employment of the locality. Empirical analysis of firms' production functions indicates that companies located in one-company towns are characterised by lower marginal product of labour, higher marginal product of capital and lower overall productivity pointing towards significant labour hoarding. One-company town enterprises are also found to be financially more vulnerable. The paper argues that the dominance of natural resources in the Russian economy and employment concentration is closely linked.employment concentration, one-company towns, labour productivity, Russia

Efficiency of photodesorption of Rb atoms collected on polymer organic film in vapor-cell

The efficiency of photodesorption of Rb atoms previously collected on polymer organic film has been studied in detail. This study was carried out in a Pyrex glass cell of which the inner surface was covered with (poly)dimethylsiloxane (PDMS) film and illuminated by a powerful flash lamp. The desorption dynamic of the Rb atoms density in the cell caused by the illumination and percentage of desorbed atoms was studied by using of Rb resonance lamp and free running diode laser as sources of probing light. It was determined that 85 percent collected chemical active Rb atoms and stored during 16 seconds in the closed cell, 75 percent in the pumped cell can be desorbed by single flash of the lamp. The number of stored atoms decays with a characteristic time of 60 min in isolated cell and with a time 12.4 minutes in a pumped cell. We believe that this efficient method of collection and fast realization of atoms or molecules could be used for enhancement of sensitivity of existed sensors for the trace detection of various elements (including toxic or radioactive ones) which is important to environmental applications, medicine or in geology. The effect might help to construct an efficient light-driven atomic source for a magneto-optical trap in a case of extremely low vapor density or very weak flux of atoms, such as artificial radioactive alkali atoms.Comment: 9 pages, 9 figures; accepted for publication in EPJ

Towards targeted colorectal cancer biopsy based on tissue morphology assessment by compression optical coherence elastography

Identifying the precise topography of cancer for targeted biopsy in colonoscopic examination is a challenge in current diagnostic practice. For the first time we demonstrate the use of compression optical coherence elastography (C-OCE) technology as a new functional OCT modality for differentiating between cancerous and non-cancerous tissues in colon and detecting their morphological features on the basis of measurement of tissue elastic properties. The method uses pre-determined stiffness values (Young’s modulus) to distinguish between different morphological structures of normal (mucosa and submucosa), benign tumor (adenoma) and malignant tumor tissue (including cancer cells, gland-like structures, cribriform gland-like structures, stromal fibers, extracellular mucin). After analyzing in excess of fifty tissue samples, a threshold stiffness value of 520 kPa was suggested above which areas of colorectal cancer were detected invariably. A high Pearson correlation (r =0.98; p <0.05), and a negligible bias (0.22) by good agreement of the segmentation results of C-OCE and histological (reference standard) images was demonstrated, indicating the efficiency of C-OCE to identify the precise localization of colorectal cancer and the possibility to perform targeted biopsy. Furthermore, we demonstrated the ability of C-OCE to differentiate morphological subtypes of colorectal cancer – low-grade and high-grade colorectal adenocarcinomas, mucinous adenocarcinoma, and cribriform patterns. The obtained ex vivo results highlight prospects of C-OCE for high-level colon malignancy detection. The future endoscopic use of C-OCE will allow targeted biopsy sampling and simultaneous rapid analysis of the heterogeneous morphology of colon tumors