Macro-econometric modelling for the Nigerian economy: A growth–poverty gap analysis

This study develops comprehensive full-sector macro-econometric models for the Nigerian economy with the aim of explaining and providing a long-term solution for the persistent growth–poverty divergence experienced by the country. The models are applied to test the hypothesis of existing structural supply-side constraints versus demand-side constraints impeding the economic growth and development of the country. A review of the historical performance of the Nigerian economy reveals significant socio–economic constraints as the predominant impediments to high and sticky levels of poverty in the economy. Thus, a model which is suitable for policy analyses of the Nigerian economy needs to capture the long-run supply-side characteristics of the economy. A price block is incorporated to specify the price adjustment between the production or supply-side sector and real aggregate demand sector. The institutional characteristics with associated policy behaviour are incorporated through a public and monetary sector, whereas the interaction with the rest of the world is represented by a foreign sector, with specific attention being given to the oil sector. The models are estimated with time-series data from 1970 to 2006 using the Engle–Granger two-step co-integration technique, capturing both the long-run and short-run dynamic properties of the economy. The full-sector models are subjected to a series of policy scenarios to evaluate various options for government to improve the productive capacity of the economy, thereby achieving sustained accelerated growth and a reduction in poverty in the Nigerian economy.     

General Equilibrium Impacts of Monetary and Fiscal Policies on Welfare of Households in South Asia

Impacts of fiscal and monetary policies are assessed in an open economy two sector multi‐household general equilibrium tax model with money for South Asia. Despite impressive growth rates there is evidence for alarming gaps in the distribution of income among households that require very careful design of economic policies. Generally the impacts of fiscal expansions are positive for all categories of households under the flexible price system but the gains are much higher for households in the upper income group than for those in the bottom. In theory the equilibrium relative prices guarantee the optimal allocation of resources in such economy. Simulation results show that demand, output and employment are sensitive to the preferences of consumers, confidence of producers and sector specific production technologies. Monetary policy is super‐neutral under flexible price regime but can complement fiscal policy well when aggregate prices are made sticky. Combination of monetary and fiscal policies in this manner can have extensive impacts in efficiency and redistribution. Higher taxes distort incentives to work and investment from richer households slowing down the economy. This reduces the welfare level of both rich and poor. Flexibility in prices enhances the market mechanism and makes the fiscal policy more effective and efficient.     

Fiscal policy,long-run stability and aggregate supply

The model developed in this paper incorporates aggregate supply and hence the price level into existing dynamic IS-LM models of flow and stock equilibrium. Whereas the long-run equilibrium position in these models is stable and fiscal policy works regardless of empirical magnitudes when budget deficits are financed by printing money, the introduction of aggregate supply into these models is shown to render the stability of long-run equilibrium and hence the effectiveness of fiscal policy under money financing, open to empirical question.     

Fiscal Policy and Equitable Growth

This paper continues the study of optimal fiscal policy in a growing economy by exploring a case in which the government simultaneously provides three main categories of expenditures with distortionary tax finance: public production services, public consumption services, and state-contingent redistributive transfers. The paper shows that in a general-equilibrium model with given exogenous fiscal policy, a nonmonotonic relation exists between the suboptimal long-run growth rate in a competitive economy and distortionary tax rates. When fiscal policy is endogenously chosen at a social optimum, the relation between the rate of growth and tax rates is always negative. These two properties suggest that an alternative set of government policy instruments affects the response of private sector investment to fiscal policy. Moreover, the different properties of exogenous and endogenous fiscal policy theoretically account for the difference in the relation between economic growth and fiscal policy in empirical studies.     

Less Government—More Wealth? On the Macroeconomics of a Smaller Public Sector in Europe

In this paper, we analyze the reactions of European economies to a fiscal policy strategy aiming at diminishing the public sector. Within the framework of the MSG3 model, a macroeconomic model of the world economy, we perform several simulation experiments to explore the effects of reducing government expenditures permanently in different phases of the business cycle. For this purpose, we combine the fiscal contraction with negative and positive, Euro Area-wide and global, supply and demand shocks. It turns out that adverse Keynesian effects on output and employment tend to be mostly weak and short-lived, whereas long-run effects on output and employment are favorable. Due to these long-run effects, the fiscal contraction policy raises welfare as measured by an asymmetric quadratic objective function. The size of these welfare effects depends on the initial situation in a non-trivial manner.     

Wealth inequality, entrepreneurship and industrialization

The paper shows that in a two-good economy with a basic and a luxury good sector inequality is indeed a hindrance to provide sufficient incentive for entrepreneurship to low-wealth economic agents. In contrast to the literature it uses both demand and supply-side explanations for the analysis. An entrepreneurial subsidy policy to encourage entrepreneurship in autarky financed by a lump sum tax on the rich is not very effective in unequal economies since it hardly impacts the welfare. When trade is opened up in the luxury good sector of such an economy the sector might cease to exist. In such a scenario, the rich people being the sole consumers would reap the entire benefits of globalization via low price of the imported luxury good. The paper highlights that the crucial question is: ‘how to globalize’ rather than ‘whether to globalize’ and suggests policy measures to make globalization inclusive.     

Econometric analysis of bank lending and business cycles in South Africa

This article examines econometric relationships between bank lending and business cycle in South Africa. Two long-run economic relationships are hypothesized between total credit and the variables, namely, coincidental indicators, spread between lending and borrowing rates, money supply, stock price index, inflation and banking sector specific factors included in the model. Of these variables, only coincident indicators, changes in money supply as well as capital, and reserve are found to exert some influence on short-run total credit availability.     

Monetary,fiscal, and structural drivers of inflation in Ethiopia: new empirical evidence from time series analysis

This study empirically investigates the drivers of inflation in Ethiopia using monthly data over the period July 1998 to September 2020. It explores short-run and long-run effects of domestic and external determinants of inflation—including demand-side, supply-side, and structural factors—using the cointegration and vector error-correction methodology. Four measures of inflation are considered: cereals, food, nonfood, and all-items Consummer Price Index (CPI) inflation. A key contribution to the existing literature is the investigation of the role of the fiscal sector in modeling inflation, a topic that has been neglected in the existing studies on inflation in Ethiopia. The empirical results show that disequilibria in the monetary sector, grains sector, and food markets have long-run effects on inflation. In the short run, inflation is driven by structural factors (notably, cereal output gaps and imported inflation) as well as demand-side factors (notably, money growth and public sector borrowing). The results hold when analysis is limited to the high growth period from 2005 onward, following the end of the International Monetary Fund (IMF) program in the country. The evidence provides valuable insights in the context of ongoing macroeconomic policy reforms in Ethiopia.     

Anticipated and unanticipated money: a case study of Malaysia

The paper tests the LSW proposition that unanticipated policy changes affect real economic variables by using Malaysian data over the period 1970:1–1990:4. The empirical evidence changes in fiscal policy and balance of payments do not affect real output, thus lending support to the proposition. On the other hand, anticipated monetary policy and inflation influence output in the short-run, lending support to Mishkin's views of the economy and rejecting the LSW proposition. In addition, the long-run neutrality proposition is not supported by the data. Moreover, unanticipated changes in inflation do influence real output in the short-run lending support to the LSW proposition. However, unanticipated changes in monetary policy, balance of payments and fiscal policy do not influence real output, lending support to the classical view of the economy and rejecting the LSW proposition. Furthermore, the Monetarist's view that inflation is a monetary phenomenon is rejected. The findings also show that unanticipated movements of money supply contribute significantly to the inflation rate. The Chow test shows that the coefficients remain stable over the period of study.     

Dynamics of money, output and price interaction — some Indian evidence

The present study is an attempt to model the dynamic interactions between money, output and prices in a structural vector autoregression framework. The primary concern of the paper is to examine the sources of variations and response of one variable to changes in others in a system of economic variables in the Indian context. Using quarterly data from 1970Q1 to 1990Q4, we find that structural factors, in addition to monetary factors, play an important role in generating and sustaining the process of inflation and fluctuations in economic activity. An increase in money/credit supply is found to increase output and prices in the short-run and prices in the long-run, while a non-accommodating monetary policy is ineffective in controlling inflation even at the cost of substantial output losses, thereby indicating relative rigidities in price movements. Another interesting finding is that the monetary authority responds differently to different price shocks, exercising its leverage in altering the quantity as well as the composition of aggregate money supply. Our findings also indicate that the economy is characterized by relatively large and infrequent shocks to ‘price/cost’-related factors. Finally, our analysis suggests that a simple monetary targeting without adequate ‘supply side’ measures may not be able to serve the objective of maintaining growth with price stability.     

二元财政的制度变迁：基于路径依赖的视角

植根于二元经济结构的二元财政制度总是执行有利于城镇部门发展，而且有损于农业部门发展的财政税收政策。这不仅造成了农村居民的长期贫困，而且还持续拉大城乡差距。基于新制度经济学的制度变迁分析结果显示，二元财政的制度安排内含自我增强机制，其变迁具有明显的路径依赖特征，所以，农村居民的贫困必然具有长期性，城乡差距也会持续拉大。因此，必须根据中国经济现实，对二元财政制度采取边际调整的改革措施和借助市场化的手段改善其赖以存在的经济环境，方可在长期内从整体上推动二元财政制度变迁，实现城乡平等的财政制度。     

Impact of fiscal policy in an intertemporal CGE model for South Africa

This paper uses an intertemporal computable general equilibrium model to investigate the consequences of an expansive fiscal policy designed to accelerate economic growth in South Africa. A key contribution is made to existing literature on the transmission mechanism of fiscal policy in African economies. To the best of our knowledge, no published study has empirically analyzed the macroeconomic effects of fiscal policy in the context of an open, middle-income sub-Saharan African economy like South Africa using an integrated intertemporal model with such disaggregated production structure. The paper shows that an expansive fiscal policy would have a temporary impact on gross domestic product (GDP) but would translate into higher debt relative to GDP. Using increased taxation to finance the additional spending would lessen this impact but would also negatively affect macroeconomic variables. Increased investment spending would improve long-term GDP, under any financing scheme, and would decrease debt-to-GDP ratio as well as deficit-to-GDP ratio. This outcome is driven by the positive impact infrastructure has on total factor productivity. Sensitivity analysis shows that these conclusions are qualitatively similar for wide values of the elasticity of the total factor productivity to infrastructure. In fact, the conclusions hold even when comparing different financing schemes.     

In search of stabilization and recovery: macro policy and reforms in Venezuela

Venezuela is currently immersed in a severe economic crisis as a result of years of domestic mismanagement and the recent reversal in oil prices. This article attempts to formulate a proposal for stabilization and recovery that includes upfront key policy actions to deal with the drastic foreign exchange constraint. We consider the recovery of foreign currency liquidity to be of paramount importance. This will allow not only the lifting of exchange control and the implementation of a stable and competitive real exchange rate, but also the removal of shortages across the board and output recovery. The recovery of domestic activity will also require supply-side relief in the form of broad deregulation, institutional changes, and a sensible policy to lift price controls. To maintain a stable and competitive exchange rate, we propose a whole set of policy measures for rapid suppression of inflation and the causal mechanisms that have formed over the years. A monetary reform and the support of monetary and fiscal policy for successful stabilization and recovery efforts are also discussed.     

The Role of Fiscal and Monetary Policies in Sustaining Growth With Stability in India*

The performance of the Indian economy in recent years has attracted increasing international interest. This paper focuses on the role of fiscal and monetary policies in the evolution of the Indian economy over the years, with particular attention being given to the reforms undertaken in these policies since the early 1990s. The coordination of fiscal and monetary policies has been crucial in the sequencing of the economic reform process carried out since the early 1990s. Monetary policy aims to maintain a judicious balance between price stability and economic growth. With the opening up of the Indian economy and the spread of financial sector reforms aimed at functional autonomy, prudential strengthening, operational efficiency, and competitiveness of banks, considerations of financial stability have assumed greater importance in recent years alongside the increasing openness of the Indian economy. The biggest challenge facing the conduct of fiscal and monetary policy in India is to continue the accelerated growth process while maintaining price and financial stability. Therefore, the self‐imposed rule‐based fiscal correction at both the national and subnational levels has to be consolidated and carried forward. The existence of a high level of fiscal deficit also contributes to the persistence of an interest rate differential with the rest of the world, which then also constrains progress toward full capital account convertibility. The success achieved in revenue buoyancy through tax rationalization and compliance has to be strengthened further.     

Trade openness and the effectiveness of fiscal policy: some empirical evidence

Is the potency of fiscal policy lower for more open economies, as suggested by economic theory? Using annual data from the period 1951?C2007, for 62 developed and developing economies, the paper??s empirical findings show that the effectiveness of fiscal policy is indeed reduced by an economy??s trade openness, and that the effect is quantitatively substantial. In particular, the paper??s estimates suggest that an increase in trade openness by 10% of GDP reduces the magnitude of the long-run fiscal multiplier by 5?C6%.     

Institutional constraints,double imbalances and policy option—global financial crisis and China’s fiscal policy

With the enormous development of China’s economy, we re-implement the proactive fiscal policy not only to response to the global financial crisis, but also to take advantage of the opportunity to resolve the institutional constraints, transform China’s economic growth pattern, keep stability and promote the sustainable growth of the economy. So the goal of fiscal policy should weigh easing the economic crisis against long-term stability and the development of economy. The past experiences of fiscal policy practices in China indicate that the traditional simple counter-cyclical fiscal policy may be able to pull the economy out of recession, but it has little effect on automatic recovery of the economy. Therefore, the fiscal policies need to hang on the entire reform process and the whole economic structure adjustment. This paper firstly reveals the root of “double imbalances” and institutional constraints, then analyzes the paradox between such constraints, and discusses the space of positive fiscal policy.     

The effectiveness of monetary policy and output fluctuations: An asymmetric analysis

Previous studies have investigated asymmetries in the effects of monetary policy on the real economic activity by using either vector autoregressive (VAR)-based regime-switching models with smooth transition technique or Gaussian functions to parameterise the dynamic effects of structural shocks on the economy. These kinds of VAR models assume asymmetry as a short-run relationship between the series since the long-run neutrality hypothesis of money states that monetary policy can only affect productive capacity of the economy in the short run, but not in the long run. The recent theoretical literature shows that this hypothesis is not quite right. Thus, this paper examines the extent to which monetary policy has a long-run asymmetric effect on output in a number of Organisation for Economic Co-operation and Development countries by using a nonlinear hidden cointegration analysis within a likelihood-based panel framework. The findings indicate that there is a long-run relationship between the real interest rate as an indicator of monetary policy and the growth rate of real output in five countries out of nine under review. This gives support for the view that output has responded asymmetrically to the real interest rate changes. The economic implication of our results is that monetary policy affects positive and negative output fluctuations differently.     

Fiscal and monetary effects on environmental quality,growth, and welfare

This paper examines the effect of fiscal and monetary policies on economic growth, inflation, environmental quality, and welfare. To this end, the horizontal-R&D growth model is extended to include pollution generated in the intermediate-goods production, and the demand for money through cash-in-advance (CIA) constraints on intermediate-goods production and R&D investment. Fiscal policy embodied in the taxation of pollution decreases output, profits, inflation, and wages in the intermediate-goods sector, reallocating labor to R&D that is the engine of economic growth. As it reduces pollution, it increases welfare if there are strong preferences for a clean environment. In turn, since the inflation rate is an increasing function of the nominal interest rate, the effects of changes in this monetary policy variable extend to the effects of changes in the inflation rate. An increase in the nominal interest rate penalizes employment, wages and output in the R&D sector relatively more if the respective CIA constraint is more demanding and thus economic growth decreases. As it also reduces pollution since decreases intermediate-goods production, it increases welfare if the preferences for a clean environment are strong enough.     

Fiscal policy,welfare, and employment with perfect foresight

The long-run feasibility of expansionary fiscal policy is analyzed in a “fix price” economy under the assumption that individuals are altruistic and have rational expectations. It is found that exclusive reliance on interest bearing debt is a feasible policy only if money is an inferior good. However, feasibility is ensured if the bonds to money ratio is not higher than a certain critical level.     

Natural gas,trade and sustainable growth: empirical evidence from the top gas consumers of the developing world

Natural gas is the key non-renewable source of energy for a low-carbon economy. The research applies heterogeneous panel techniques to investigate the impact of natural gas consumption on economic growth across a panel of top 15 natural gas consumers of the developing world. We establish long-run dynamics with cross-sectional dependence and heterogeneity across the sample countries. The long-run output elasticities suggest that the natural gas consumption and trade variables have significant positive effect on the output in a panel of developing economies. Further, we establish feedback relationship among gas consumption, output and trade in the short-run. Given the significance of natural gas as the low-emission source of energy, we suggest governments and policy advisers of these major natural gas consumers to focus on developing pipeline infrastructure for adequate supply, reforming natural gas sector with a competitive price structure to combat excess demand in individual natural gas market. With trade integration, majority of these countries need to incorporate these initiatives to improve the technologies such as combined cycle power plant technology and value-added chemical production technology to achieve sustainable economic growth.