Klaus Schmidt-Hebbel

Ali Khadr

This framework for macroeconomic consistency (applied here to Zimbabwe) provides an organizing device for checking the consistency of data, a snapshot of the principal resource transfers in an economy, and a tool for financial programing or model building.

A Framework for Macroeconomic Consistency for Zimbabwe

Luis Serven

World Bank Technical Paper No. 349. The Bank's approach to water resources development has shifted from one of construction activities to one of improved management quality, creating a new generation of water-related projects and the need for new evaluation procedures. This paper addresses the methodology for economic evaluation of this new group of projects and draws on the experience of the recently approved Mexico Water Resources Management project.

Puzzles and Policies

Saving Across the World

Norman Loayza

The authors investigate the policy and non-policy factors behind saving disparities, using a large panel data set and an encompassing approach including several relevant determinants of private saving. They extend the literature in several dimensions, by: 1) Using the largest data set on aggregate saving assembled to date. 2) Using panel instrumental variable techniques to correct for endogeneity and heterogeneity. 3) Performing robustness checks on changes in estimation procedures, data samples, and model specification. Their main empirical findings: a) Private saving rates show considerable inertia (are highly serially correlated even after controlling for other relevant factors). b) Private sector rates rise with the level and growth rate of real per capita income. So policies that spur development are in indirect but effective way to raise private saving rates. c) Predictions of the life-cycle hypothesis are supported in that dependency ratios generally have a negative effect on private saving rates. d) The precautionary motive for saving is supported by the finding that inflation - conventionally taken as a summary measure of macroeconomic volatility - has a positive impact on private saving, holding other facts constant. e) Fiscal policy is a moderately effective tool for raising national saving. F) the direct effect of financial liberalization are largely detrimental to private saving rates. Greater availability of credit reduces the private saving rate; financial depth and higher real interest rates do not increase saving.

Klaus Schmidt-Hebbel

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