Working Papers
2023
December 22, 2023
Designing a Presumptive Income Tax Based on Turnover in Countries with Large Informal Sectors
Description: Turnover (sales) is frequently used in developing countries as a presumptive income tax base, to economize on the costs of tax administration and taxpayer compliance. We construct a simple model where a size threshold separates firms paying turnover tax from those paying profit tax (regular income tax), and where firms have the option of producing in the untaxed, informal sector. The optimal turnover tax rate trades off two policy concerns: reducing informality and avoiding strategic reductions in sales by firms seeking to remain below the threshold for the profit tax. We provide analytical results and calibrate the model to compute the optimal policy using realistic parameter values. The optimal turnover tax rate for countries with large informal sectors is found to be around 2.5% across most scenarios, while the threshold separating the turnover tax regime from profit tax lies for the most part between $65,000 and $95,000. Introducing an optimally designed turnover tax reduces the rate of informality of businesses by about 12 percentage points in the calibrated model.
December 22, 2023
Non-traded Gains From Trade - Selection in the Non-Traded Sector: Evidence from Brazil
Description: We investigate how trade shocks affect the allocation of labor across plants at the local labor market level. Using Brazil’s import liberalization as a quasi-natural experiment, we uncover a new margin for the gains from trade: the reallocation of labor from smaller to larger producers in the non-traded sector. We find that in response to liberalization, larger non-traded producers self-select into importing, expanding as they gain access to inputs from abroad. We then develop a parsimonious model of heterogeneous producers incorporating this mechanism. The theory is consistent with the empirical findings and show that reallocation among non-traded producers is welfare-enhancing. In contrast, this reallocation effect disappears when all nontraded producers make the same importing decision.
December 22, 2023
Inflation Indexation in Public Finances: A Global Dataset on Current Practices
Description: This paper presents a new global dataset on current practices for four budget items in terms of indexation to the price level and other nominal variables. Compiling data from documents of select multilateral organizations, governments, and related literature as well as conducting a survey among IMF country desks of 190 country-members, we show how indexation is internationally applied in (i) personal income tax brackets; (ii) pensions; (iii) social assistance programs; and (iv) public wages. The dataset shows that while indexation policies vary significantly across economies, some trends can be identified. For example, indexation is more common on pension and social grants than on taxes, and falls with the degree of economic development. We further discuss some applications of this new dataset. Those include an accounting exercise illustrating the impacts of indexation on fiscal outcomes during episodes of inflation surprises; and an analysis of the association between the overall degree of indexation combining the four budget items and inflation persistence.
December 15, 2023
Inflation Dynamics in the Gulf Cooperation Council (GCC): What is the Role of External Factors?
Description: Inflationary pressures have intensified in the Gulf Cooperation Council (GCC) in 2021-2022, mainly driven by a pick-up in tradeable goods inflation. Despite this increase, inflation remained relatively contained as compared to regional comparators. This paper aims to provide a comprehensive analysis of inflation dynamics in the region, with a focus on external factors because of GCC’s high reliance on international trade. Using a Global Vector Autoregressive model with quarterly data from 1987 to 2022, we find that external factors such as the imported inflation from main trading partners, mainly driven by China, and nominal effective exchange rate (NEER) are the main drivers of inflation in the GCC region. Additionally, we find that the direct pass-through of international commodity price shocks such as oil and raw agricultural materials is somewhat limited, after controlling for trading partners’ inflation, which can be explained by the prevalence of subsidies and administered prices in the region. Overall, since external factors are the main drivers of domestic inflation in the GCC, an increased focus on diversification, promoting food security, and ensuring prudent central bank policies, including through effective liquidity management frameworks, can play a key role in managing this impact.
December 15, 2023
Household Debt and Borrower-Based Measures in Finland: Insights from a Heterogeneous Agent Model
Description: We analyze the effects of borrower-based macroprudential tools in Finland. To evaluate the efficiency of the tools, we construct a heterogeneous agent model in which households endogenously determine their housing size and liquid asset levels under two types of borrowing constraints: (i) a loan-to-value (LTV) limit and (ii) a debt-to-income (DTI) limit. When an unexpected negative income shock hits the economy, we find that a larger and more persistent drop in consumption is observed under the LTV limit compared to the DTI limit. Our results indicate that although DTI caps tend to be unpopular with lower income households because they limit the amount they can borrow, DTI caps are beneficial even on distributional grounds in stabilizing consumption. Specifically, DTI caps mitigate the consumption decline in recessions by restricting high leverage, and thus, they can usefully complement LTV caps.
December 15, 2023
Fiscal Impacts of Climate Disasters in Emerging Markets and Developing Economies
Description: Climate-induced disasters are causing increasingly frequent and intense economic damages, disproportionally affecting emerging markets and developing economies (EMDEs) relative to advanced economies (AEs). However, the impact of various types of climate shocks on output growth and fiscal positions of EMDEs is not fully understood. This research analyzes the macro-fiscal implications of three common climate disasters (droughts, storms, and floods) using a combination of macroeconomic data and comprehensive ground and satellite disaster indicators spanning the past three decades across 164 countries. Across EMDEs, where agriculture tends to be the principal sector, a drought reduces output growth by 1.4 percentage points and government revenue by 0.7 percent of GDP as it erodes the tax bases of affected countries. Meanwhile, likely reflecting limited fiscal space to respond to a disaster, fiscal expenditure does not increase following a drought. A storm drags output growth in EMDEs, albeit with negligible impact on fiscal revenue, but government expenditure increases due to reconstruction and clean-up efforts. We find only limited impact of localized floods on growth and fiscal positions. In contrast, AEs tend to experience negligible growth and fiscal consequences from climate-induced shocks. As these shocks have much more detrimental effects in EMDEs, international support for disaster preparedness and climate change adaptation play a crucial role for these countries to confront climate change.
December 15, 2023
Can Fiscal Consolidation help Central Banks Fight Inflation?
Description: This paper argues case that a tighter fiscal policy stance can meaningfully support central banks in fighting inflation in both advanced and emerging market economies. While the standard textbook result suggest that monetary policy is much more effective than fiscal policy in battling inflation in open economies due to the exchange rate channel, we show that a tighter fiscal stance is notably more effective in the current situation. This is so because when many countries currently need to tighten the policy stance simultaneously, the exchange rate channel does not provide monetary policy with an edge over fiscal policy. We also show that fiscal consolidation can be helpful in small open emerging markets and developing economies by reaffirming their commitment to price stability, and by putting the fiscal house in order which reduces risk premiums and strengthens the currency. Furthermore, we show that spillovers from major economies can be more adverse from tighter monetary policy. By applying a two-agent New Keynesian modeling framework with unconstrained and hand-to-mouth households, we show that any adverse effects of tighter fiscal policy (relative to tighter monetary policy) on consumption inequality can be handled with a combination of general spending cuts and targeted transfers to vulnerable households.
December 15, 2023
The Macroeconomic Effects of Large Immigration Waves
Description: We propose a novel approach to measure the dynamic macroeconomic effects of immigration on the destination country, combining the analysis of episodes of large immigration waves with instrumental variables techniques. We distinguish the impact of immigration shocks in OECD countries from that of refugee immigration in emerging and developing economies. In OECD, large immigration waves raise domestic output and productivity in both the short and the medium term, pointing to significant dynamic gains for the host economy. We find no evidence of negative effects on aggregate employment of the native-born population. In contrast, our analysis of large refugee flows into emerging and developing countries does not find clear evidence of macroeconomic effects on the host country, a conclusion in line with a growing body of evidence that refugee immigrants are at disadvantage compared to other type of immigrants.
December 15, 2023
How the Brady Plan Delivered on Debt Relief: Lessons and Implications
Description: Rising debt vulnerabilities in low- and middle-income countries have rekindled interest in a Brady Plan-style mechanism to facilitate debt restructurings. To inform this debate, this paper analyzes the impact of the original Brady Plan by comparing macroeconomic outcomes of 10 Brady countries to 40 other emerging markets and developing economies. The paper finds that following the first Brady restructuring in 1990, Brady countries experienced substantial declines in public and external debt burdens and a sharp pick-up in output and productivity growth, anchored by a comparatively strong structural reform effort. The impact of the Brady Plan on overall debt burdens was many times greater than initial face value reductions, indicating the existence of a “Brady multiplier.” Brady restructurings took longer to complete than non-Brady restructurings. Today, similar mechanisms could be helpful in delivering meaningful debt stock reduction when solvency challenges are acute, but Brady-style mechanisms alone would not solve existing challenges in the sovereign debt landscape, including those related to creditor coordination, domestic barriers to economic reforms, and the increased prevalence of domestic debt, among others.
December 8, 2023
The Dark Side of the Moon? Fintech and Financial Stability
Description: Rapid advances in digital technology are revolutionizing the financial landscape. The rise of fintech has the potential to make financial systems more efficient and competitive and broaden financial inclusion. With greater technological complexity, however, fintech also poses potential systemic risks. In this paper, I use a novel dataset to trace the development of fintech (excluding cryptocurrencies) and empirically assess its impact on financial stability in a panel of 198 countries over the period 2012–2020. The analysis provides interesting insights into how fintech correlates with financial stability: (i) the impact magnitude and statistical significance of fintech depend on the type of instrument (digital lending vs. digital capital raising); (ii) the overall effect of all fintech instruments together turns out to be negative because of the overwhelming share of digital lending in total, albeit statistically insignificant; and (iii) while digital capital raising is estimated to have a positive effect on financial stability in advanced economies, its effect is negative in developing countries. Fintech is still small compared to traditional institutions, but rapidly expanding in riskier segments of the financial sector and creating new challenges for policymakers.