Central Banks and Their Policies

Changes in the Liquidity Effect Over Time: Evidence from Four Monetary Policy Regimes

This paper employs a time-varying parameter vector autoregressive (TVP-VAR) model to establish the nature of the relationship between central bank liabilities and the overnight policy rate. Four countries with different monetary policy regimes were considered. It was found that a clear negative relationship between these variables exists only in the case of one regime, namely the reserve regime. This result indicates that the introduction of new operational frameworks for central banks have challenged the traditional model of monetary policy implementation.

The impact of Monetary Policy Announcements and Political Events on the Exchange Rate: The Case of South Africa

Since 2000 the South African rand has been among the most volatile emerging market currencies, occasionally experiencing sharp depreciations. These sharp fluctuations in the value of the currency cannot be adequately explained by models of flow-supply and flow-demand of currency or by movements in fundamental factors, yet few studies have employed an asset pricing approach to explain exchange rate variability in emerging markets.

Welfare analysis of bank capital requirements with endogenous default

This paper presents a tractable framework with endogenous default and evaluates the welfare implication of bank capital requirements. We analyze the response of social welfare to a negative technology shock under different capital requirement regimes with and without default. We show that including default as an additional indicator of capital requirements is welfare improving. When implementing capital requirements, a more aggressive reaction to the default rate is more effective for weakening the negative effect of the shock on welfare.

The welfare cost of macro-prudential policy in a two-country DSGE model

This paper builds a two-country DSGE model with financial frictions and investigates the welfare cost of macro-prudential policy and its impact on financial stability. The two countries in question are the U.S. and South Africa. The results show that macro-prudential policy results in a welfare trade-off between patient and impatient households.

Do monetary policy announcements affect foreign exchange returns and volatility? Some evidence from high-frequency intra-day South African data.

This paper examines the temporal effect of domestic monetary policy surprises on both the levels and volatility of the South African rand/United States dollar exchange rate. The analysis in this ‘event study’ proceeds using intra-day minute-by-minute exchange rate data, repo rate data from the South African Reserve Bank’s scheduled monetary policy announcements, and Bloomberg market consensus repo rate forecasts.

Effects of South African Monetary Policy Implementation on the CMA: A Panel Vector Autoregression Approach

The paper investigates the effects of South African monetary policy implementation on selected macroeconomic variables in the rest of the Common Monetary Area (CMA) looking specifically at the response of a shock to South African key interest rate (repo rate) on macroeconomic variables such as the regional lending rates, interest rate spread, private sector credit, money supply, inflation and economic growth in the rest of the CMA countries. The analysis is conducted using impulse-response functions derived from Panel Vector Autoregression (PVAR) methodology.

Qualitative Guidance and Predictability of Monetary Policy in South Africa

With the adoption of the in‡ation targeting (IT) regime in 2000, the South African Reserve Bank (SARB) became independent. With the independence of monetary policy comes accountability to the public at large, which in turn leads to transparency in the conduct of monetary policy. The SARB has come a long way in its communication strategy.


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