Optimal factor and commodity taxation in a small open economy

A two-sector trade model with specific factors and perfect international capital mobility is used to analyze the optimal mix of factor and commodity taxation in a small open economy that faces domestic or international constraints on its tax instruments. In the unconstrained benchmark case, the small country will tax specific factors and domestic consumption but chooses zero tax rates for a selective production tax (i.e., an origin-based commodity tax) and a source-based tax on capital income. When commodity taxation must follow a combination of origin and destination principles, then this mixed commodity tax rate will be positive and its production effects are partly compensated in the optimum by a capital subsidy. These international restrictions interact with domestic constraints when rents accruing to fixed factors cannot be taxed by a separate instrument, and a positive tax rate on capital serves as an indirect way of rent taxation.     

Human capital and optimal positive taxation of capital income

This paper analyzes optimal linear and non-linear taxes on capital and labor incomes in a life-cycle model of human capital investment, financial savings, and labor supply with heterogenous individuals. A dual income tax with a positive marginal tax rate on not only labor income but also capital income is optimal. The positive tax on capital income serves to alleviate the distortions of the labor tax on human capital accumulation. The optimal marginal tax rate on capital income is lower than that on labor income if savings are elastic compared to investment in human capital, substitution between verifiable and non-verifiable inputs in human capital formation is difficult, and most investments in human capital are verifiable so that education subsidies can directly reduce the tax wedge on learning. Numerical calculations suggest that the optimal marginal tax rate on capital income is substantial.     

Assessing the international spillover effects of capital income taxation

Changes in capital taxes by one economy spill onto other economies with internationally mobile capital. We evaluate these impacts using a two-region, intertemporal general equilibrium model. The foreign economy's unilateral reduction in corporate income taxation has positive but small effects on U.S. welfare. In contrast, unilateral reductions in personal income taxation impose large negative spillovers. The differences result from CIT being source-based and PIT residence-based. The CIT cut reduces tax burdens to U.S. residents who invest abroad, while the PIT cut reduces foreigners' tax burdens only. Through general equilibrium adjustments neglected in simpler models, the PIT cut lowers U.S. residents' welfare.     

Capital income taxation and economic growth in open economies

Can reductions in domestic capital income taxes attract foreign capital and, at the same time, foster economic growth? Using a two-country overlapping generations model with endogenous growth and internationally mobile capital, this paper shows that the effect of domestic capital taxes on the international allocation of capital and on the rate of economic growth do not necessarily go in the same direction. A country can attract capital by reducing its taxes, but this may lower the rate of economic growth depending on the elasticity of saving to the net-of-tax interest rate and on the effect of taxes on domestic factor productivity.     

Personal taxation of capital income and the financial leverage of firms

Tax competition for capital has led to a trend where many countries levy lower taxes on interest income, often introducing differential taxation between interest and business income. This study analyzes the effect on firm debt usage. We exploit Germany’s 2009 tax reform, which introduced a final withholding tax on interest income with a flat rate 18 percentage points below the unchanged tax rate on income from unincorporated businesses, as a quasi-experiment. The results, based on firm-level panel data, indicate that firms increase their leverage when the tax rate on interest income decreases, albeit to a small degree.     

Credit crunch in a small open economy

We construct an open-economy DSGE model with a banking sector to analyze the impact of the recent credit crunch on a small open economy. In our model the banking sector operates under monopolistic competition, collects deposits and grants collateralized loans. Collateral effects amplify monetary policy actions, interest rate stickiness dampens the transmission of interest rates, and financial shocks generate non-negligible real and nominal effects. As an application we estimate the model for Poland-a typical small open economy. According to the results, financial shocks had a substantial, though not overwhelming, impact on the Polish economy during the 2008/09 crisis, lowering GDP by approximately 1.5 percent.     

A portfolio based theory of excessive foreign borrowing and capital control in a small open economy

We develop a simple model of portfolio choice in a mean variance framework to address the issue of international borrowing and financial crisis. Instead of adverse selection or moral hazard of lending and borrowing activities we emphasise the role of exchange rate movement. Syndicated borrowing by way of internalising the aggregate effect tends to restrict excessive borrowing from external source. However, this may undermine the welfare consequences by further aggravating the extent of risk undertaken in the process. There is a built-in externality in the model that leads to over exposure to foreign currency debt and readily calls for intervention by the government. Government intervention by way of a tax on foreign borrowing may help restrain the amount of external debt and implement the first best.     

Optimal exchange intervention for a small open economy

This paper investigates the optimal exchange intervension strategy for a small open economy in which both the domestic price level and domestic real GNP are endogenous, with the authority's objective being to stabilize a function involving both these variables. A special feature of the underlying macro model is that real balances are productive. Ultimately, this will mean that aggregate supply is sensitive to nominal interest rates. Additionally, both expectations and the intervention policy are designed to exploit the fact that financial market data, such as exchange and interest rates, are observable on a fairly current basis. Contrary to conventional wisdom, optimal intervention will usually require accentuating, not moderating, current exchange rate movements.     

Inventories and optimal monetary policy in a small open economy

We study how inventory investment affects the design of optimal monetary policy in a New Keynesian small open economy model. We find that under producer currency pricing, when the intratemporal elasticity of substitution is smaller than 1, optimal monetary policy in our model with inventories is similar to a standard model without inventories. However, when the intratemporal elasticity of substitution is larger than 1, inventory investment increases the importance of nominal exchange rate stabilization relative to a standard model without inventories. The importance of nominal exchange rate stabilization increases with the intratemporal elasticity of substitution.     

Financial integration and business cycles in a small open economy

The purpose of this study is to examine a dynamic, stochastic, general equilibrium framework with financial and informational frictions and foreign borrowing in the case of money growth and technology shocks for a small open economy and to analyze the implications of varying degrees of financial integration for aggregate fluctuations and propagation mechanisms in the economy. The existence of informational asymmetries among the agents in the model necessitates financial intermediation in the economy. Moreover, there is uncertainty involved in the production process which leads to collateralized borrowing by firms and, therefore, has to be taken into account in the design of the loan contracts between firms and financial intermediaries. It is shown that increasing financial integration amplifies the effect of a positive, temporary monetary shock on output, consumption, investment, labor demand and loans; whereas it has barely any implication for the impact of a positive, temporary technology shock on the economy.     

Optimal foreign exchange-rate policy for a small open economy

This paper examines optimal exchange-rate policy for a small open economy which faces temporary and pemanent, real and nominal disturbances. It demonstrates that exchange-rate stabilization is desirable if most diturbances are nominal. If most disturbances are real, then stabilization should be greater: (1) the greater the fraction of exchange-rate variance accounted for by permanent disturbances; (2) the greater the information available to firms in setting the wage; (3) the greater the fraction of exchange-rate variance attributed to domestic productivity shocks compared with foreign relative price shocks; and (4) the more elastic is labor supply.     

Balancing the regulation and taxation of banking

This study gives an overview of bank taxation as an alternative to prudential regulations or non-revenue taxation. We review existing bank taxation with a view to eliminating distortions in the tax system, which have incentivized banks to engage in risky activities in the past. We furthermore analyze taxation of financial instruments trading and taxation of banking products and services and their ability to finance resolution mechanisms for banks and to ensure their stability. In this respect, we put forward the following arguments: (1) that a financial transaction tax is economically inefficient and potentially costly for the economy and may not protect taxpayers; (2) that a bank levy used to finance deposit guarantee and bank resolution mechanisms is potentially useful for financial stability, but that it poses the threat of double taxation, together with the proposed Basel-III Liquidity Coverage Ratio; and (3) that we support the elimination of exemption from value added tax (VAT) for financial services in order to provide banks with a level playing field, while retaining exemption for basic payments services. This is expected to improve efficiency by reducing the wasteful use of financial services.     

Capital controls and monetary policy autonomy in a small open economy

Is there a link between capital controls and monetary policy autonomy in a country with a floating currency? Shocks to capital flows into a small open economy lead to volatility in asset prices and credit supply. To lessen the impact of capital flows on financial instability, a central bank finds it optimal to use the domestic interest rate to “manage” the capital account. Capital account restrictions affect the behavior of optimal monetary policy following shocks to the foreign interest rate. Capital controls allow optimal monetary policy to focus less on the foreign interest rate and more on domestic variables.     

Pollution externalities and corrective taxes in a dynamic small open economy

International Tax and Public Finance - This study examines the effects of tax policies in a dynamic model of a polluted small open economy with two sources of flow pollution—consumption and...     

Unemployment and debt dynamics in a highly indebted small open economy

The paper analyzes the dynamic effects of a total factor productivity shock and an interest rate risk premium shock in a highly indebted open economy. In contrast to the standard open economy framework, search unemployment and wage bargaining are introduced. We find that a negative total factor productivity shock primarily has effects on the economy's production side and on welfare, but not on its stock of foreign debt and the country specific risk premium, and large part of the adjustment happens in the short-run. In contrast, a pure increase in the country specific risk premium causes substantial dynamics and a considerable reduction in foreign debt, allowing higher consumption in the long run and creating an intertemporal welfare gain, even though unemployment increases strongly in the short-run. A 50% haircut of foreign debt significantly reduces the initial response of the unemployment rate. In case of a temporary productivity shock, sticky wages imply smaller employment, but generate higher welfare than flexible wages.     

The choice of a monetary instrument in a small open economy: The case of Korea

Using a small macroeconometric model of Korea, this paper evaluates the correct choice of a monetary instrument (either the money stock or the interest rate), the optimal multiperiod policy, and the value of current information on some monetary varialbles.     

Consumption-smoothing in a small, cyclically volatile open economy: Evidence from New Zealand

New Zealand's current account of the balance of payments has been persistently in deficit since the early 1970s and increased markedly during the late 1990s. Should this cause significant concern, for such a small, cyclically volatile open economy? Our results show that VAR1 and VAR2 forms of the traditional intertemporal consumption-smoothing model reflect very satisfactorily the volatile directions and turning points observed, that the data are not consistent with consumption-tilting to the present, and that New Zealand has had considerable success to date in consumption-smoothing around its average 5% current account deficit. Perhaps more unexpectedly, a Bergin–Sheffrin-type model of a small open economy with variable interest rates and exchange rates has not performed noticeably better.     

Progressive taxation in a dynastic model of human capital

We develop a quantitative theory of economic inequality to investigate the effects of replacing the current U.S. progressive income tax system with a proportional one. The cross-sectional implications of the theory are used to discipline the assessment of the effects of tax policy and circumvent the lack of conclusive micro-evidence on the parameterization of the human capital production technology. We find that the elimination of progressive taxation increases steady state level of output by 12.6%, capital by 21.8%, and consumption by 13.2%. Moreover, it increases economic inequality and its persistence across generations.     

Optimal monetary growth with accommodating fiscal policy in a small open economy

This paper emphasizes how the choice of the optimal monetary growth rate in a small open economy under perfect capital mobility depends upon the accommodating policy chosen to maintain the overall budget constraint in the economy. When this occurs through lump sum taxation, the optimal monetary growth rate is shown to be the ‘distorted’ Friedman monetary rule. If the adjustment occurs through the income tax rate, the optimal monetary growth rate involves a Phelps-type tradeoff between the income tax rate and the inflation tax rate. The framework is suited for analyzing optimal macroeconomic policy in general and the latter part of the paper considers an optimal monetary-fiscal package.