Volatility of Monetary Policy in a Developing Economy: In Context of Pakistan

Transcription

1 European Journal of Scientific Research ISSN X Vol.36 No.2 (2009), pp EuroJournals ublishing, Inc Volatility of onetary olicy in a Developing Economy: In Context of akistan Syed Khurram Arslan Wasti -hil Fellow, Applied Economics Research Centre University of Karachi, Karachi-akistan arslan_bzu@hotmail.com Sulaiman D. uhammad Associate rofessor, Department of Economics Federal Urdu University, Karachi-akistan sulaiman1959@gmail.com Narjis Khatoon - hil Fellow, Applied Economics Research Centre University of Karachi, Karachi-akistan rizvi.narjis@yahoo.com Irfan Lal -hil Fellow, Applied Economics Research Centre University of Karachi, Karachi-akistan irf_yoch@yahoo.com Abstract This study is to analyze the volatility of the monetary policy in less developed countries like akistan is carried out for the period of 37 years from 1971 to Different econometrics techniques are used i.e. unit root analysis, Johnson co integration technique & error correction mechanism for long run and short run association respectively. Further objective of this study is to examine some hypothesis of the ackinnon model with reference to akistan s economy and scrutinize the instruments of monetary policy and determinants of money supply in akistan. The estimated results show that there is a long-run equilibrium association among variables but we didn t able to predict short run equilibrium in first three models except the last model which reflects that real rate of interest and real private investment significantly effect the real money demand in the long run. The empirical results show that time deposits and broad money have a less volatile behavior in case of akistan s economy and also explain that stock of money reserve causes a large portion of variation in money supply. Keywords: onetary olicy, Volatility, Co-Integration Jel Classification Codes: E42, C44 Electronic copy available at:

2 Volatility of onetary olicy in a Developing Economy: In Context of akistan 173 I. Introduction It is important in monetary policy to take precise measure of size and direction of change. A number of variables and indicators are used as a measure of the position towards the monetary policy in across the world. In case of open economy, it is assumed that monetary policy affects the economy and prime objective is to evaluate the monetary policy, rate of inflation through two important transmissions. These transmissions are the interest rate and exchange rate channel. Two apparent objectives have been given to State Bank of akistan first: to stabilize monetary system. Secondly: to take initiative towards the perfect utilization of country s productive resources. Target rate of growth and inflation rates set by the federal government as the targets of monetary policy stance. In the context of the developed economies the Keynesian-monetarist debate has concentrated on the efficiency of stabilization policy. The effectiveness of fiscal and monetary policies depend upon the size and significance of macroeconomics variables such as marginal propensity to save, the interest elasticity of money demand and interest elasticity of investment (slope of IS and L Curve). One of the objectives of this paper is to test some hypothesis of the ackinnon model with reference to akistan economy. Another objective is to examine the instruments of monetary policy and determinants of money supply in akistan. The structure of this paper is as follow, Section II analyze the review literature. Section III represents brief description about ackinnon model, section IV describes the empirical evidence and instruments for the monetary policy in akistan and determinant of money supply will be discussed in section V. Summary and conclusion will be described in Section VI. II. Literature Review Rehman & Ahmed (2002) found that monetary base remained an important determinant of monetary stock (2) and the monetary policy remained an effective instrument in controlling and regulating monetary assets in akistan. Khalid (2005) suggests that imported inflation, seinorage and openness are key factors which cause to inflation in akistan. As well as result indicates that imported inflation, deficit-gd ratio, seinorage, money depth, exchange rate depreciation and domestic credit can be important determinants of inflation in akistan. Tehran & Lausing (2003) suggest that discretionary monetary policy in a model that allow for varying degrees of forward-looking behaviors. Forward- Looking behaviors, the optimal monetary policy can response either satisfy or expand to output gap; the inflation depends upon the portion which the economic model is affected by expectation. Qayyum (2002) recommends that akistani government should use monetary condition index to check the stance of the monetary policy. CI is designed to suggest as an indicator of monetary policy which helps the monetary policy stance. III. ackinnon odel onetary approach often prescribes low interest rate policies in order to raise investment and thereby aggregate demand. In the ackinnon model, the traditional policies is identified as one of financial repression that leads to disintermediation, follow low investment and affected the market segmentation in developing economies. The ckinnon Shaw hypothesis suggests that the level of financial intermediation should be closely related to the prevailing level of the real interest rate, the reason being that the level of real interest rate when held down their normal competitive levels which indicates the extent of financial repressions [Gregorio & Guidotti (1995)]. The main features of the ckinnon model are summarized as follows: the main variables which lead to retardation of growth in lower developing countries (LDC) are the fragmentation of capital and capital and money market. The main objective of the monetary policy should be promoted the development of capital and financial market rather then short run stabilization. As we know money and capital are the substitutes to each other. Electronic copy available at:

3 174 Syed Khurram Arslan Wasti, Sulaiman D. uhammad, Narjis Khatoon and Irfan Lal ckinnon argues that because of limited availability of alternative financial assets in the developing countries, money is the major channel for debt intermediation process associated with capital accumulation. oney and capital should be regards as compliment rather then substitute. The demand for money function according to ckinnon is written as: d = β Y I 2 3 i Y 4 1 β 5 e Where d is the demand for money balances including savings and time deposits, Y is the real income, i is the nominal interest rate of saving and time deposit, e is the expected rate of inflation I/Y is the ratio of real investment to real income. Thus, as to overcome at above fluctuations, it is necessarily to provide high rate of interest on monetary assets, in order to shift the portfolio of saving from non productive physical goods to monetary assets. In the process of capital formation is the insufficient flow of monetary saving to finance investment projects rather than the shortage of opportunities to profitable investment. The key policy object of the ckinnon Shaw school of thought is that the government constraint on banking such as (such as interest rate ceilings, high cash reserve requirement and directed credit programs) impede the process of financial development and consequently reduce economic growth [Husseun & Demetriades (1996)]. III. Data Analysis Following doctoring of ackinnon models for akistan is estimated. d Log( ) = β 1 2 log( r) 3 log( Y ) + µ (1) d Log( ) = β 1 2 log( i) 3 log( & ) 4 log( Y ) + µ (2) d Log( ) = β 1 2 log( Y ) + µ (3) d Log( ) = β 1 2r 3 log( RI) + µ (4) Where d : Demand for Re al oney Balances. r : The Re al Rate of Interest on Saving & Time Deposits. i: No min al Interest Rate. Y : The Re al Gross Domestic r oduct. & : The Rate of Change in Consumer r ice Index. with log. RI : Re al r ivate Investment with log. any empirical studies have considered log linear form in the analysis. The coefficient in the form of log linear calculates the elasticity directly. oreover log linear form reduces the problem of hetrosecdasticity in empirical analysis. Thus empirical results show that this model is suitable for policy inference. Data is taken annually from various sources i.e. Annual Reports of SB, Economic Survey of akistan, World Development Indicators (WDI) & International Financial Statistics (IFS). This study using Johnson ultivariate cointegaration technique to examine the long run equilibrium relationship. For co integration test it is necessary to access whether a variable series is stationary or not, for this purpose we have to use Unit Root Analysis before testing of co integration.

4 Volatility of onetary olicy in a Developing Economy: In Context of akistan 175 Since it is essential, but not suitable condition for a set of variables to be co integrated. Augmented Dickey Fuller test (ADF) is employed for a unit root analysis. This test is for stochastic non stationary. In this phase we examine the matter that proposed by ckinnon, the demand function for money as discussed by ckinnon that either akistan economy shows the evidence of financially repressed economy or not. ckinnon incorporates two elements; first is the demand function of money in the developing countries additionally the relevant rate of interest the rate of saving and time deposits. Secondly the accurate measure of inflation relevant with the demand function for money in developing countries is the rate of change in consumer price index. Table: 1 Unit Root Test Result Variables Augmented Dicky Fuller (ADF) LEVEL 1 st Difference Inflation * Nominal Rate of Interest * Real GD * Real oney Demand ** Real rivate Investment * Real Rate of Interest * Budget Deficit * Reserve oney * * & ** shows the level of significance at 1% and 5% respectively. Schwarz Information Criteria, Akaiken Information Criteria are used to select of optimal lag length. Almost all results show that all series are unit root at level but stationary at first difference. The Johnson ultivariate trace and maximum Eigen values cointegration is applied to the variables in model 1,2,3 and 4 is presented in following given tables: Demand for oney in akistan, : Regression Results. Table-2: Johnson Test for Cointegration Trace Test r * r r 2 r = aximum Eigen Values r = * r = r 2 r = * shows the 5% Level of significance Variables included in the vectors are: RD, R & RGD

5 176 Syed Khurram Arslan Wasti, Sulaiman D. uhammad, Narjis Khatoon and Irfan Lal Error Correction odel Estimates Dependent Variable RD Variables Coefficient Stand Error T-Values R RGD µ 1( 1) Constant Table 3: Johnson Test for Cointegration Trace Test r * r r 2 r r 3 r = aximum Eigen Values r = * r = r 2 r = r 3 r = * shows the 5% Level of significance Variables included in the vectors are: RD, I, INF & RGD Error Correction odel Estimates Dependent Variable RD Variables Coefficient Stand Error T-Values I INF RGD µ 2 ( 1) Constant Table 4: Johnson Test for Cointegration Trace Test r * r = aximum Eigen Values r = * r = * shows the 5% Level of significance Variables included in the vectors are: RD & RGD

6 Volatility of onetary olicy in a Developing Economy: In Context of akistan 177 Error Correction odel Estimates Dependent Variable RD Variables Coefficient Stand Error T-Values RGD µ ( 1) Constant Table-5: Johnson Test for Cointegration Trace Test r * r r 2 r = aximum Eigen Values r = * r = r 2 r = * shows the 5% Level of significance Variables included in the vectors are: RD, R &RI. Error Correction odel Estimates Dependent Variable RD Variables Coefficient Stand Error T-Values R RI µ 4 ( 1) * Constant * shows the 5% Level of significance Table 2, 3, 4 & 5 represent both Trace and Eigen values give the same result. The alternative hypothesis of co integration is accepted for r = 0 for both Trace and Eigen tests at 5 % level of significance. This implies that there is one cointegration vector. Thus it is concluded that even though the individual variables series are non stationary but their linear combination is stationary. Thus, the level of estimates for policy implications, we apply the Error Correction odel estimates for short-run equilibrium but for model 1,2 and 3 can not be predicted, because their t-values show the insignificant results. On the other hand, model 4 shows the adjustment coefficient is negative and significant (-0.33) suggests that 33% of the disequilibrium is corrected immediately in next period. ckinnon emphasizes on financial repressed in developing countries because of monetary policy maintains high negative real interest rates in such countries like Chile & Brazil in 1960 s, the proportion of the time deposits in total deposits and the ratio of broad money (2) to GN is declined. This phenomenon is opposed to financial deepening which is characterized by a financial intermediation ratio, the ratio of financial assets to GN. It is valuable to analyze that whether any symptoms of financial repression exists in akistan or not. Table-7 provides informations about commercial banks time deposits as % of total deposits and the broad money 2 as % of current GN over the 1971 to Both ratios tend to show that monetary policy in akistan is not much volatile.

7 178 Syed Khurram Arslan Wasti, Sulaiman D. uhammad, Narjis Khatoon and Irfan Lal Table 6: Time Deposits & 2 as % of Total Deposit & GN ( ) Years Commercial bank Time Deposits as % of Total Deposits 2 as % of GD Data source: State Bank of akistan Annual Report 2008

8 Volatility of onetary olicy in a Developing Economy: In Context of akistan 179 V. Instruments of onetary olicy & Determinant of oney Supply The main instruments of monetary policy in akistan are the central banks credit to commercial banks, interest rate channel, margin requirement, selective credit controls and cash reserve ratios. Table 7: Trends of Banks Borrowing From SB & Interest Rates ( ) Years Commercial Bank Borrowing from SB as % of Total deposit Bank Rate Weighted Average rate of Interest Deposit (%) Loans (%) Inflation Rate Data source: State Bank of akistan Annual Report 2008 Table-8 exhibits the starting era of commercial banks borrowing from SB shows an increasing trend but with the passage of time it seems to be declined caused by an increasing trend in bank rates. Table also shows that inflation rate is quite volatile even now.

9 180 Syed Khurram Arslan Wasti, Sulaiman D. uhammad, Narjis Khatoon and Irfan Lal Table 8: oney ultiplier & Their Determinant in akistan Years Currency Outside Bank as % Demand Deposits Bank Reserve as % of Demand Deposits Narrow oney (1) ultiplier ean Coefficient of Variation in % Data source: State Bank of akistan Annual Report The supply of money is the product of reserve money (currency and bank reserve with the SB). Table 9 shows the behaviors of these monetary variables in akistan. The narrow money multiplier does not seems to be fluctuated. The growth of money supply can be expressed in term of growth of reserve money (R) and the money multiplier. Table 10 represents the growth rates of monetary variables in term of percentage.

10 Volatility of onetary olicy in a Developing Economy: In Context of akistan 181 Table 9: Growth Rates of onetary Variables (%) Years g1 g2 gr Data source: State Bank of akistan Annual Report 2008 Where g1: Represent the Growth Rate of oney Supply (1) g2: Represent the Growth Rate of Broad oney Supply (2) gr: Represent the Growth Rate of Reserve oney. Table 10 represents that the reserve money is the major determinant of money supply. This is because of stock of reserve money may be passively responsive to the demand for money and credit, especially for the financial requirements of the government. The level of budget deficit in akistan seems to be statistically significant variable in explaining the variation in the stock of reserve money.

11 182 Syed Khurram Arslan Wasti, Sulaiman D. uhammad, Narjis Khatoon and Irfan Lal Table 10: Reserve oney , Empirical Evidence Equations G Dependent Variable R Constant (1.32) BD (-2.55) Regression Statistics R^2 DW Where R: Represent Reserve oney. BD: Represent Budget Deficit. VI. Results & Discussions This study examines the different mechanism of monetary policy in akistan. The demand for money function formulated according to the ckinnon model, instruments of monetary policy and determinants by employing Johnson Cointegration test for the long run equilibrium relationship among variables using annual data for the period For estimating short run equilibrium the Error Correction odel is applied. The results show that there is a long-run equilibrium relationship among variables, but we didn t able to predict short run equilibrium in first three models except the last model which shows that real rate of interest and real private investment significantly effect the real money demand in the long run. The empirical results show that time deposits and broad money have a less volatile behavior in case of akistan economy and also explain that stock of reserve money causes a large portion of variation in money supply. However, results also suggest that reserve money itself influenced by such factors as the level of budget deficit. olicy Implication & Suggestions The evidence shows that stock of reserve money explains the less variation in money supply in case of akistan. Further shows that reserve money itself is influenced by level of budget deficit. In term of policy implication it is suggested that in order to gain fruitful results from monetary policy in akistan, the policy makers should also consider fiscal deficit in their policies because this study has clearly shown that stock of reserve money has significantly affected the money supply in the country that stock of reserve money itself effected by budget deficit. In order to control money supply it is suggested that government should reduces its expenditures.

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