Ms.Era Dabla-Norris

Mr.Alun H. Thomas

Mr.Rodrigo Garcia-Verdu

Ms.Yingyuan Chen

This paper documents stylized facts on the process of structural transformation around the world and empirically analyzes its determinants using data on real value added by sector of economic activity (agriculture, manufacturing and services) for a panel of 168 countries over the period 1970-2010. The analysis points to large differences in sector shares both across and within regions as well as for countries at similar levels of economic development. Using both linear and quantile regression methods, it finds that a large proportion of the cross-country variation in sector shares can be accounted for by country characteristics, such as real GDP per capita, demographic structure, and population size. It also finds that policy and insitutional variables, such as product market reforms, openness to trade, human and physical capital, and finance improve the baseline model’s ability to account for the variation in sectoral shares across countries.

Benchmarking Structural Transformation Across the World

Enrique Rojas

Mr.Matthieu Bellon

Jillie Chang

Salma Khalid

Frederico Lima

Pilar Villena

This paper examines the impact of e-invoicing on firm tax compliance and performance using administrative tax data and quasi-experimental variation in the rollout of VAT electronic invoicing in Peru. We find that e-invoicing increases reported firm sales, purchases and value-added by over 5 percent in the first year after adoption. The impact is concentrated among smaller firms and sectors with higher rates of non-compliance, suggesting that e-invoicing enhances compliance by lowering compliance costs and strengthening deterrence. The reform’s positive effects on tax collection are hindered by shortcomings in the VAT refund mechanism in Peru, suggesting that digital tools such as e-invoicing should be complemented by other reforms to improve revenue mobilization.

Digitalization to Improve Tax Compliance: Evidence from VAT e-Invoicing in Peru

Luis-Felipe Zanna

Victor Duarte Lledo

Mr.Richard Allen

Irene Yackovlev

Eteri Kvintradze

Sophia Gollwitzer

Mr.Tej Prakash

This paper presents, for the first time, multi-dimensional indices of the quality of budget institutions in low-income countries. The indices allow for benchmarking against the performance of middle-income countries, across regions, and according to different institutional arrangements that deliver good fiscal performance. Using the constructed indices, the paper provides preliminary empirical support for the hypotheses that strong budget institutions help improve fiscal balances and public external debt outcomes; and countries with stronger fiscal institutions have better scope to conduct countercyclical policies.

Budget Institutions and Fiscal Performance in Low-Income Countries

Ms.Kalpana Kochhar

Mrs.Nujin Suphaphiphat

Ms.Evridiki Tsounta

Mr.Frantisek Ricka

This paper analyzes the extent of income inequality from a global perspective, its drivers, and what to do about it. The drivers of inequality vary widely amongst countries, with some common drivers being the skill premium associated with technical change and globalization, weakening protection for labor, and lack of financial inclusion in developing countries. We find that increasing the income share of the poor and the middle class actually increases growth while a rising income share of the top 20 percent results in lower growth—that is, when the rich get richer, benefits do not trickle down. This suggests that policies need to be country specific but should focus on raising the income share of the poor, and ensuring there is no hollowing out of the middle class. To tackle inequality, financial inclusion is imperative in emerging and developing countries while in advanced economies, policies should focus on raising human capital and skills and making tax systems more progressive.

A Global Perspective

Causes and Consequences of Income Inequality

Mr.Mark Gradstein

Fedor Miryugin

Florian Misch

The extent of tax compliance has important implications for revenue yield, efficiency and the fairness of any tax system. Tax evasion undermines revenue collection, distorts competition, and undermines a country’s development prospects. In this paper, we investigate whether higher productivity causally leads to lower tax evasion. We first present stylized facts consistent with this view and develop a model that illustrates one potential transmission channel. Second, we test the model predictions at the firm level using the self-reported share of declared income as proxy for tax evasion for a large sample of emerging and developing economies. Our results suggests that productivity improvements by firms can lead to lower tax evasion.

Productivity and Tax Evasion

Markus Bruckner

Does the distribution of income within a country become more equal as it grows richer? This paper uses plausibly exogenous variations in trade-weighted world income and international oil price shocks as instruments for within-country variations in countries real GDP per capita to examine this issue for a large sample of advanced and developing countries. Our findings indicate that increases in national income have a significant moderating effect on income inequality: a one percent increase in real GDP per capita, on average, reduces the Gini coefficient by around 0.08 percentage points, a result that is robust across income levels, different time horizons, and alternative estimation techniques. From a policy perspective, our results suggest that education policies that promote equity and help individuals continue on to higher levels of education could help reduce income inequality.

National Income and Its Distribution

Mr.David Amaglobeli

Hua Chai

Mr.Kamil Dybczak

Mauricio Soto

Alexander F. Tieman

This SDN explores how demographic changes have affected and will affect public and private sector savings, highlighting the interaction between pension systems, labor markets, and demographic variables.

The Role of Pension System Design in an Aging World

The Future of Saving

Mr.Chris Papageorgiou

Zac Mills

Mr.Jim Brumby

Ms.Annette Kyobe

This paper introduces a new index that captures the institutional environment underpinning public investment management across four different stages: project appraisal, selection, implementation, and evaluation. Covering 71 countries, including 40 low-income countries, the index allows for benchmarking across regions and country groups and for nuanced policy-relevant analysis and identification of specific areas where reform efforts could be prioritized. Potential research venues are outlined.

An Index of Public Investment Efficiency

Investing in Public Investment

Mr.Thomas J Sargent

Mr.George Hall

Mr.Martin Ellison

Mr.Andrew Scott

Mr.Harold James

Mark De Broeck

Mr.Nicolas End

Ms.Marina Marinkov

Vitor Gaspar

World War I created a set of forces that affected the political arrangements and economies of all the countries involved. This period in global economic history between World War I and II offers rich material for studying international monetary and sovereign debt policies. Debt and Entanglements between the Wars focuses on the experiences of the United States, United Kingdom, four countries in the British Commonwealth (Australia, New Zealand, Canada, Newfoundland), France, Italy, Germany, and Japan, offering unique insights into how political and economic interests influenced alliances, defaults, and the unwinding of debts. The narratives presented show how the absence of effective international collaboration and resolution mechanisms inflicted damage on the global economy, with disastrous consequences.

Debt and Entanglements Between the Wars

Ms.Era Dabla-Norris

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