Does Educational Tracking Affect Performance and Inequality? Differences-in-Differences Evidence across Countries

Even though some countries track students into differing-ability schools by age 10, others keep their entire secondary-school system comprehensive. To estimate the effects of such institutional differences in the face of country heterogeneity, we employ an international differences-in-differences approach. We identify tracking effects by comparing differences in outcome between primary and secondary school across tracked and non-tracked systems. Six international student assessments provide eight pairs of achievement contrasts for between 18 and 26 cross-country comparisons. The results suggest that early tracking increases educational inequality. While less clear, there is also a tendency for early tracking to reduce mean performance. Therefore, there does not appear to be any equity-efficiency trade-off.tracking, streaming, ability grouping, selectivity, comprehensive school system, educational performance, inequality, international student achievement test, TIMSS, PISA, PIRLS

Tracing the Conversion of Gas into Stars in Young Massive Cluster Progenitors

Whilst young massive clusters (YMCs; $M$ $\gtrsim$ 10$^{4}$ M$_{\odot}$, age $\lesssim$ 100 Myr) have been identified in significant numbers, their progenitor gas clouds have eluded detection. Recently, four extreme molecular clouds residing within 200 pc of the Galactic centre have been identified as having the properties thought necessary to form YMCs. Here we utilise far-IR continuum data from the Herschel Infrared Galactic Plane Survey (HiGAL) and millimetre spectral line data from the Millimetre Astronomy Legacy Team 90 GHz Survey (MALT90) to determine their global physical and kinematic structure. We derive their masses, dust temperatures and radii and use virial analysis to conclude that they are all likely gravitationally bound -- confirming that they are likely YMC progenitors. We then compare the density profiles of these clouds to those of the gas and stellar components of the Sagittarius B2 Main and North proto-clusters and the stellar distribution of the Arches YMC. We find that even in these clouds -- the most massive and dense quiescent clouds in the Galaxy -- the gas is not compact enough to form an Arches-like ($M$ = 2x10$^{4}$ M$_{\odot}$, R$_{eff}$ = 0.4 pc) stellar distribution. Further dynamical processes would be required to condense the resultant population, indicating that the mass becomes more centrally concentrated as the (proto)-cluster evolves. These results suggest that YMC formation may proceed hierarchically rather than through monolithic collapse.Comment: 12 pages, 8 figures, 1 table. Accepted by MNRA

Russia's National Security Concept

Dubois Patrick. KAHN (Zadoc). In: , . Le dictionnaire de pédagogie et d'instruction primaire de Ferdinand Buisson : répertoire biographique des auteurs. Paris : Institut national de recherche pédagogique, 2002. p. 90. (Bibliothèque de l'Histoire de l'Education, 17

Regional vs. Global Public Goods: The Case of Post-Communist Transition

The paper discusses the role of regional public goods vs. global goods in influencing postcommunist transition in Central and Eastern Europe and former USSR with special attention given to three particular factors: (i) external anchoring of national reform process; (ii) international trade arrangements and (iii) international financial stability. Our main finding is that that the EU, through the Eastern enlargement process, acted as the very effective regional public (club) good provider, whose influence across time and countries was correlated with better transition outcomes. In particular, the consolidation phase in democratization, institution building and structural transformation was successful in countries reforming under EU accession conditionality, but not under other forms of conditionality provided, for example, by the Bretton Woods institutions, . In the area of trade, gains from WTO accession were dwarfed by the impact of the opening of the EU trading block for accession countries. Finally, countries participating in EU integration showed more discipline in maintaining macroeconomic stability, while IMF programs were less effective in inducing stability in the absence of the European factor. This the main reason why CIS countries which got neither the EU accession perspective, nor even trade liberalization offer on the EU lag behind Central European, Baltic and Balkan countries in terms of democratization, rule of law, institutional stability and market-oriented economic reforms. However, due to observed ‘enlargement fatigue’ in the incumbent EU, the future attractiveness of the EU integration perspective and strength of the accessionassociated incentive system (in respect to countries of Western Balkans, CIS and Turkey) comes under question. There is also unclear whether European experience in providing regional public goods can be easily repeated in other geographic regions and to which extended can be used by the providers of global public goods.public goods, post-communist transition, European integration, trade liberalization, international financial stability

Regional vs. Global Public Goods: The Case of Post-Communist Transition

The paper discusses the role of regional public goods vs. global goods in influencing postcommunist transition in Central and Eastern Europe and former USSR with special attention given to three particular factors: (i) external anchoring of national reform process; (ii) international trade arrangements and (iii) international financial stability. Our main finding is that that the EU, through the Eastern enlargement process, acted as the very effective regional public (club) good provider, whose influence across time and countries was correlated with better transition outcomes. In particular, the consolidation phase in democratization, institution building and structural transformation was successful in countries reforming under EU accession conditionality, but not under other forms of conditionality provided, for example, by the Bretton Woods institutions. In the area of trade, gains from WTO accession were dwarfed by the impact of the opening of the EU trading block for accession countries. Finally, countries participating in EU integration showed more discipline in maintaining macroeconomic stability, while IMF programs were less effective in inducing stability in the absence of the European factor. This the main reason why CIS countries which got neither the EU accession perspective, nor even trade liberalization offer on the EU lag behind Central European, Baltic and Balkan countries in terms of democratization, rule of law, institutional stability and market-oriented economic reforms. However, due to observed 'enlargement fatigue' in the incumbent EU, the future attractiveness of the EU integration perspective and strength of the accession associated incentive system (in respect to countries of Western Balkans, CIS and Turkey) comes under question. There is also unclear whether European experience in providing regional public goods can be easily repeated in other geographic regions and to which extended can be used by the providers of global public goods.public goods, post-communist transition, European integration, trade liberalization, international financial stability