Search results for "libri"
showing 10 items of 1189 documents
World Interest Rates, Inequality and Growth: an Empirical Analysis of the Galor-Zeira Model
2014
Following Galor and Zeira (1993), we study the effect of the world interest rate on inequality and growth for the period 1985-2005, characterized by falling world interest rates and cross-country income polarization. We argue that the two phenomena are related on th e basis of the following findings, which are in accordance with the predictions of the Galor and Zeira model: 1) a reduction of the world inter est rates increases inequality in rich countries and decreases inequ ality in poor countries; 2) inequality has a negative (and significant) eff ect on human capital accumulation in rich countries and a positive (b ut mostly not significant) effect in poor countries; 3) human capital po …
L'ouverture de la Chine et ses impacts sur l'économie chinoise
2012
In the early 1980s, Chinese government has adopted an opening up policy in order to attract capital, skills and modern advanced technology that are necessary for the economic development of China. Indeed, this policy has already borne fruit. China, that was almost self-sufficient until the 1980s, has now become the largest exporter and the second largest recipient of foreign direct investment in the world. Until now, most of the research on the economic opening up policy of China, however, has concentrated on the demonstration of the positive effects of exports and FDI inflows on the domestic economy of China. In this thesis, based on the analysis of economics of production, we study the re…
How Parallel Markets Fueled Chronic Shortage in the Soviet Official Sector
1999
The paper presents a disequilibrium model of a pre-transition centrally planned economy, with explicit description of labour supply to the official sector, as well as illegal economic activities. Under weak assumptions, raising official prices for deficit goods leads to even higher inflation in the shadow sector and increases the labour supply to the official sector. However, aggregate supply does not grow as much as income, and (flow) excess demand in the official sector goes up, while excess demand in the aggregate market remains positive. Simulation results suggest that our assumptions and conclusions are consistent with estimates of monetary overhang obtained (in a different way) by oth…
Inflation dynamics in a model with firm entry and (some) heterogeneity
2014
We analyse the incidence of endogenous entry and firm TFP-heterogeneity on the response of aggregate inflation to exogenous shocks. We build up an otherwise standard DSGE model in which the number of firms is endogenously determined and firms differ in their steady state level of productivity. This splits the industry structure into firms of different sizes. Calibrating the different transition rates, across firm sizes and out of the market we reproduce the main features of the distribution of firms in Spain. We then compare the inflation response to technology, interest rate and entry cost shocks, among others. We find that structures in which large (more productive) firms predominate tend…
Macroeconomic Modelling in EMU: How Relevant is the Change in Regime?
2007
We analyse the likely effects of changes in the monetary and financial regimes of EMU countries on the dynamics of output and inflation. In particular, we evaluate the impact of the regime shift on the forecasting performance of reduced-form models. Data for both the pre-EMU and the EMU regimes are generated by a relatively standard open-economy-DSGE model with sticky prices and wages and restricted access to financial markets for some individuals. We find that the effects of the shift in the monetary regime on the processes followed by macroeconomic variables depend on the nature of the shocks hitting the economy. For plausible shocks distributions the reduction in the accuracy of VAR-base…
Effects of Fiscal Stimulus in Structural Models
2010
The paper assesses, using seven structural models used heavily by policymaking institutions, the effectiveness of temporary fiscal stimulus. Models can, more easily than empirical studies, account for differences between fiscal instruments, for differences between structural characteristics of the economy, and for monetary-fiscal policy interactions. Findings are: (i) There is substantial agreement across models on the sizes of fiscal multipliers. (ii) The sizes of spending and targeted transfers multipliers are large. (iii) Fiscal policy is most effective if it has some persistence and if monetary policy accommodates it. (iv) The perception of permanent fiscal stimulus leads to significant…
A formal model based on Game Theory for the analysis of cooperation in distributed service discovery
2016
New systems can be designed, developed, and managed as societies of agents that interact with each other by offering and providing services. These systems can be viewed as complex networks where nodes are bounded rational agents. In order to deal with complex goals, they require cooperation of the other agents to be able to locate the required services. The aim of this paper is formally and empirically analyze under which circumstances cooperation emerges in decentralized search of services. We propose a repeated game model that formalizes the interactions among agents in a search process where agents are free to choose between cooperate or not in the process. Agents make decisions based on…
Crystalline Non‐Equilibrium Phase of a Cobalt(II) Complex with Tridentate Ligands
2015
In six-coordinate complexes, flexible tridentate ligands enable mer, cis-fac, and trans-fac stereoisomers. With labile metal ions of the first transition metal series, typically only the final thermodynamic product is available because of the rapid isomerization processes. Here we report on the structural characterization of a so far elusive kinetic intermediate of [Co(ddpd)2](BF4)2 (1; ddpd = N,N′-dimethyl-N,N′-dipyridine-2-yl-pyridine-2,6-diamine). Microcrystals of the cis-fac isomer of 1 were obtained by rapid precipitation. The solid-state structure of cis-fac-1 was determined from electron diffraction data.
The equilibrium structure of propadienylidene
1999
Abstract A coupled-cluster study of the equilibrium geometry of propadienylidene (C3H2) is presented. Deviations between a recently reported experimental re structure and those computed at the CCSD(T)/cc-pVQZ and CCSD(T)/cc-pCVQZ levels are larger than expected. A closer analysis reveals that this discrepancy is due to inaccuracies in the cubic force field that was used to correct the measured rotational constants for vibrational effects. A satisfactory agreement between theory and experiment is obtained if the vibrational effects on the rotational constants are computed from harmonic and cubic force fields determined at either the CCSD(T)/cc-pVTZ and CCSD(T)/cc-pCVTZ levels. Revised values…
Interaction of Zn(II) and Cd(II) with Large Polyazacycloalkanes in dmso/H2O (80:20 vol./vol.). A potentiometric Study.
1990
Abstract A potentiometric study on the interaction at 25 °C and 0.15 mol dm −3 between large polyazacycloalkanes of the series [3 k ]aneN k and Zn(II) and Cd(II) ions in dmso:H 2 O (80:20 vol./vol.) is reported. The protonation behavior of the free macrocycles and coordination trends are compared with those previously observed in aqueous solution. The main features observed in the mixed solvent are: similar protonation behavior of the free polyamines, greater tendency to form binuclear and protonated complexes and a lower tendency to bear hydrolytic reactions.