Political influence,central bank independence and inflation in Africa: A comparative analysis

This paper develops a new de facto measure of central bank independence (CBI) based on two recent measures of the turnover rates of central bank governors introduced by Vuletin and Zhu (2011), complemented with measures of alliance with the government in power, captured by prior executive appointment, tribe proximity, and political party affiliation. Using 1980–2009 data from 13 countries from the CFA zone (a currency union) and 18 non-CFA countries, the new index is used to 1) examine whether CBI can help achieve price stability in Africa and 2) show how CBI affects African countries that are part of a monetary union. We find that higher turnover rates lead to higher inflation. Our results are robust to the decomposition of the turnover rates into premature removals and ally replacements. Furthermore, we find that for CFA zone countries, central bank autonomy has no effect on inflation and instead inflation is driven by other variables such as the fixed exchange rate regime or commodity price shocks.     

Central bank independence,inflation and political instability in developing countries

We test whether political instability affects central bank independence in developing countries. Both a legal measure and the turnover tate of central bank governors are used as proxies for central bank independence and the frequency of government transfers is used to proxy political instability. Only the number of coups affects the turnover rate of central bank governors. We also find that both the turnover rate of central bank governors and political instability affect the rate of inflation.     

Time-inconsistency and expansionary business cycle theories: What does matter for the central bank independence–inflation relationship?

Since the seminal paper of Kydland and Prescott (1977), a central bank’s independence (CBI) has been considered an important institutional condition for achieving lower inflation. Recently, however, this long-held belief has been challenged. This paper investigates the relationship between CBI and inflation for a large sample (91 countries) covering the period from 1990 to 2014. We follow the previous literature by considering differences across national monetary regimes in explaining this relationship. Our approach also traces the sources of the inflationary phenomenon. Using panel data and the turnover indicator as a proxy for CBI, we offer two main findings. First, we identify the role of exchange rate regimes in the dynamic between inflation and CBI. Second, our results show that only intermediate and flexible exchange rate regimes are appropriate in this relationship. This finding is explained by the level of CBI, which is very low for countries with a fixed exchange rate policy and low income levels. For policymakers, our results highlight the importance of the choice of monetary regime in controlling inflation in the presence of CBI. For public agents, our results provide guidelines for formulating expectations.     

Does greater central bank independence really lead to lower inflation? Evidence from panel data

It has long been held that central bank independence (CBI) from political control is a necessary requirement to curb inflation. In recent times, however, this long held belief has been challenged. Using a recently compiled panel data set on central bank independence measures, the proposition that greater CBI leads to lower inflation is tested, using latent variable analysis. The use of this alternative econometric technique, along with two additional indicators that capture more appropriately the degree of de facto independence, leads to empirical results that are highly supportive of the negative relationship between CBI and inflation, thereby restoring faith in the conventionally held wisdom, that greater CBI is needed to lower inflation.     

Central Bank Independence, Inflation Variability, and the Revenue Smoothing Hypothesis

This paper examines the revenue-smoothing hypothesis, which posits that an optimizing government will adjust both taxes and inflation to meet shocks to government spending. Our contribution is to examine this through the lens of a new methodology that relates both the first and second moments of inflation rates to central bank independence (CBI) measures. Unlike existing least-squares-based CBI papers, this study uses a maximum likelihood framework that facilitates the direct inclusion of CBI parameters in the residual covariance matrix. This new approach allows for a more intensive use of information contained in the CBI indexes and the estimates obtained are better reflective of CBI influences. Our results provide stronger evidence confirming the revenue-smoothing hypothesis, in particular for those countries with more independent central banks.     

More effective than we thought: Central bank independence and inflation in developing countries

This study examines the effect of legal central bank independence on inflation in developing countries. In spite of the policy consensus suggesting that central bank independence is an effective tool to control inflation, the evidence is still limited, particularly for developing countries. Using a novel dataset, we analyze the effect of central bank independence on inflation for a sample of 118 developing countries between 1980 and 2013. We find that higher central bank independence is associated with lower inflation rates. This effect on inflation is stronger the more democratic a country is, but it is also present in non-democratic countries. Our results are robust to different specifications and methodologies. Furthermore, we find that all dimensions included in the measurement of central bank independence (objectives, personnel, policy, and financial independence) contribute to curb inflation. Our results shed light on which types of reforms may be more effective at fighting inflation in developing countries.     

Sovereign credit ratings and central banks: Why do analysts pay attention to institutions?

This paper studies the effect of the governance of modern central banks on the ratings assigned by the credit rating agencies Standard and Poor's and Moody's. Until recently, the rating process was not public. Even still, the factors or precise methodologies used by the agencies remain uncertain and analyst judgment remains important. We argue that, given uncertainty over the future paths of countries, the quality of the central bank governance serves as a useful heuristic for a stable and favorable country trajectory. In particular, the central bank's independence signals that the government is committed to general macroeconomic stability, including debt repayment. Additionally, central bank transparency clarifies who is the principal of the bank and provides information about how the central bank understands the economy and monetary policy. Finally, tensions between the central bank and the government, as reflected by irregular turnover of central bank governors, raise doubts about countries’ future prospects. Empirically, we use a variety of models, including mediation analysis, to ensure that the effect we identify stems from the central bank governance itself, as a heuristic for the future paths of countries, and not the central bank's direct contribution to the macroeconomy, as reflected in the available data.     

The political economy of IMF conditionality and central bank independence

International organizations (IOs) often drive policy change in member countries. Given IOs' limited political leverage over a member country, previous research argues that IOs rely on a combination of hard pressures (i.e., conditionality) and soft pressures (i.e., socialization) to attain their political goals. Expanding this literature, we hypothesize that IOs can enhance their political leverage through loan conditions aimed at enhancing the political independence of key administrative units. Studying this mechanism in the context of the International Monetary Fund (IMF), we argue that through prescribing structural loan conditions on central banks (CBI conditionality), the IMF empowers central banks to gain more political leverage with the aim to limit a government's ability to (ab)use monetary policy for political gain. Divorcing monetary authorities from their respective government, the IMF intends to alter political dynamics towards achieving greater program compliance and enhance long-term macro-financial stability. Relying on a dataset including up to 124 countries between 1980 and 2012, we find that the IMF deploys CBI conditionality to countries with fewer checks and balances, a less independent central bank, and where the government relies more heavily on the monetization of public debt.     

IMF conditionality and central bank independence

This paper studies the role of the International Monetary Fund (IMF) in promoting central bank independence (CBI). While anecdotal evidence suggests that the IMF has been playing a vital role for CBI, the underlying mechanisms of this influence are not well understood. We argue that the IMF has ulterior motives when pressing countries for increased CBI. First, IMF loans are primarily transferred to local monetary authorities. Thus, enhancing CBI aims to insulate central banks from political interference to shield loan disbursements from government abuse. Second, several loan conditionality clauses imply a substantial transfer of political leverage over economic policy making to monetary authorities. As a result, the IMF through pushing for CBI seeks to establish a politically insulated veto player to promote its economic policy reform agenda. We argue that the IMF achieves these aims through targeted lending conditions. We hypothesize that the inclusion of these loan conditions leads to greater CBI. To test our hypothesis, we use a recently available dataset on IMF programs that includes detailed information on CBI reforms and IMF conditionality for up to 124 countries between 1980 and 2012. Our findings indicate that targeted loan conditionality plays a critical role in promoting CBI. These results are robust towards varying modeling assumptions and withstand a battery of robustness checks.     

Effective Monetary Policy Conservatism: A Comparison of 13 OECD Countries

Empirical studies of the influence of central bank independence and inflation have yet delivered quite inconclusive results. We argue this to be due to the failure to focus an actual central bank independence and to take the degree of conservatism of the government and the central bank into account. In this paper, we propose a new methodology of measuring the joint degree of central bank independence and conservatism from observed central bank behaviour. After applying the method to 13 OECD countries, we find our indicator to be negatively correlated with a legal index of central bank independence, but positively correlated with the turnover rate. As the latter exclusively focuses on factual central bank independence, the remaining difference might be attributed to conservatism.     

Central Bank Independence and Private Investment in the Developing World

We argue that central bank independence (CBI) can raise private investment through signalling commitment to reform and suggest that such an effect might be larger in democracies where CBI can also limit populist access to economic policy-making. Random effects regressions on private investment behavior in a sample of 20 developing countries support these hypotheses.     

Central Bank Independence in Transition Economies

The paper discusses recent changes in central bank laws and the relationship between inflation and central bank independence in transition economies. Two indices of legal independence are constructed, covering political and economic aspects of independence. Most of the countries experienced high-inflation episodes in the recent past and changes introduced to the laws after, or simultaneously, with stabilization programmes strengthened the position of the central banks. In further analysis, an inverse relationship emerges between inflation and indices of central bank independence. However, the robust relationship is present only at a high level of economic liberalization. This conclusion is supported by results from regressions on time-aggregated and panel data, even after controlling for the government fiscal position and the absence/presence of an IMF stabilization package.     

Revisiting the theory of optimum currency areas: Is the CFA franc zone sustainable?

This paper aims at explaining why the CFA countries have successfully maintained a currency union for several decades, despite failing to meet many of optimum currency area criteria. We suggest that the CFA zone, while not optimal, has been at least sustainable. We test this sustainability hypothesis by relying on the Behavioral Equilibrium Exchange Rate (BEER) approach. In particular, we assess and compare the convergence process of real exchange rates towards equilibrium for the CFA zone countries and a sample of other sub-Saharan African (SSA) countries. Our findings evidence that internal and external balances have been fostered and adjustments facilitated in the CFA zone as a whole—compared to other SSA countries—as well as in each of its member countries.     

The Macroeconomic Management of Increased Aid: Policy Lessons from Recent Experience

The authors investigate the macroeconomic challenges created by a surge in aid inflows. They develop an analytical framework for examining possible policy responses to increased aid, in terms of absorption and spending of aid—where the central bank controls absorption, through monetary policy and the sale of foreign exchange, and where the fiscal authority controls spending. Different combinations of absorption and spending lead to different macroeconomic consequences. Evidence from five countries that recently experienced an aid surge (Ethiopia, Ghana, Tanzania, Mozambique, and Uganda) shows no support for aid-related real exchange rate appreciation in these countries, but it does indicate that the fear of Dutch disease played an important part in the policy reaction to aid surges. Fiscal and monetary authorities should coordinate their responses to an aid surge, because an uncoordinated response—typically when the fiscal authority wants to spend aid while the central bank wants to avoid exchange rate appreciation—can have serious negative macroeconomic consequences.     

INTERACTION BETWEEN MONETARY AND FISCAL AUTHORITIES UNDER INCOMPLETE INFORMATION

This paper analyzes the interaction between monetary and fiscal authorities under incomplete information. The inflation goal of the central bank is assumed to be unknown to the fiscal authority and the public. The central bank signals the goal by choosing the first‐period monetary policy before the fiscal authority joins the policy‐making game. If the central bank would like the fiscal authority and the public to believe that it is wet (dry), the central bank would distort the money supply upward (downward) in order to reveal its actual type.     

OPTIMAL CONTRACTS FOR CENTRAL BANKERS AND PUBLIC DEBT POLICY*

We consider how the second‐best allocation corresponding to an optimal rule under the policy commitment of a central bank and a fiscal authority with a consolidated government budget constraint can be achieved, even though these authorities are unable to commit themselves to their optimal policies and ignore the strategic interaction between their policies. Our results show that the best practical institutional arrangement is to have an instrument‐independent central bank that controls the money supply to determine the rate of inflation and commits itself to an inflation target that depends on fiscal variables.     

Reconsidering central bank independence

In this paper, we survey the case for central bank independence (CBI). We conclude that CBI is neither necessary nor sufficient for monetary stability. CBI is just one potentially useful monetary policy design instrument among several, and CBI should not be treated as an exogenous variable. Instead, the question that should be addressed is why societies decide to make their central banks independent? The reasons why CBI is chosen are related to legal, political, and economic systems. A number of empirical studies find correlations between CBI and low inflation rates. Endogeneity of CBI suggests, however, that the correlation has no implications for causality.     

Monetary policy,fiscal policy and cross signal jamming

This paper considers the issue of rule versus discretion when the central bank and the government share private information but have different preferences over inflation and output. We demonstrate that if the monetary policy is rule-based, Intuitive Criterion selects the unique separating equilibrium in which the central bank signals a low supply shock by a low interest rate. Interestingly, discretion may be better than the rule for the central bank, contrary to the case of complete information. Also, we examine the effect of information asymmetry on the monetary and fiscal policy mix. We show that cross signal jamming whereby the monetary authority and the fiscal authority successfully jams an unfavorable signal of each other does not occur in equilibrium.     

The case for fiscal rules

This paper estimates the effects of fiscal institutions on fiscal policy outcomes, addressing issues related to measurement and endogeneity in a novel way. Recently developed indices, based on partially ordered set theory, are used to quantify the stringency of fiscal rules. Identification of their effects is achieved by exploiting the exogeneity of institutional variables (checks and balances, government fragmentation, inflation targeting), which are found to be relevant determinants of fiscal rules. Our two-stage least squares estimates for (up to) 74 countries over the period 1985–2012 provide strong evidence that countries with more stringent fiscal rules have higher fiscal balances (lower deficits), lower interest rate spreads on government bonds, and lower output volatility.     

Why are price stability and statutory independence of central banks negatively correlated? The role of culture

This paper investigates whether in OECD countries the negative relation between central bank independence and inflation is related to culture, in the sense of common values and norms. It appears that inflation is lower in countries where people dislike uncertainty. Countries, where inhabitants perceive that there should be an order of inequality and a centralisation of authority, are characterised by a dependent central bank and, to a lesser extent by relatively high inflation rates. Hence, the national attitude towards inequality among people appears to be a third factor explaining the negative correlation between inflation and the degree of central bank independence.