Channels of Monetary Policy Transmission in Indonesia: A VAR model analysis
Iwan Evander Syema
Abstract
This study examines the various channels of monetary policy transmission mechanism in Indonesia. The interest rate, exchange rate, asset price and credit channels will be analysed using a VAR short-run restriction model for quarterly data, ranging from 2000Q1 to 2018Q1. The results show that the interest rate (cost of capital) channel is the most effective channel of monetary transmission in stabilising output and price level. Meanwhile, the exchange rate and asset price are the least effective channels of monetary policy, which operate via trade pass-through and Tobin’s q asset valuation channel. The credit channel is also found to be weak in controlling the price level.
JEL Codes: C32, E52, E58
Keywords: Vector autoregression, monetary transmission mechanism, Indonesia.
1. Introduction
The primary mandate of the central bank of Indonesia, Bank Indonesia (BI), is to achieve currency stability, which is reflected in the price of goods and services (inflation) and price of foreign currency (exchange rate). The pre-eminence of understanding the different channels of monetary transmission came following the 1997 Asian Financial Crisis (AFC). Mishkin (2014) identifies the common five types of transmission channels, namely, interest rate, exchange rate, asset price, credit and inflation expectations channels (see Figure 1 – Appendix B).
Monetary policy transmission has been discussed and used extensively in a number of empirical literature using vector autoregression (VAR) models. The most remarkable VAR study was conducted by Taylor (1995), describing the impact of the monetary policy shock on the real GDP. Christiano et al. (1999) employed VAR approaches for identifying the impact of an exogenous disturbance to monetary policy. Likewise, Erceg and Levin (2002) found that the optimal policy rule can be closely approximated by using the weighted average of aggregate wage and price changes. In the context of Indonesia, the following studies have been conducted. Former BI’s governor, Goeltom (2005), shows that the strongest channel of monetary policy transmission is through asset price channel followed by exchange rate channel. In the study conducted by Fuddin (2014), the credit channel is found to be effective in explaining the changes in the price level and output in Indonesia. Similarly, Ridhwan et al. (2011) found that the credit channel of monetary is more profound in explaining inflation after the 1997 AFC.
In this research, the VAR approach is used, which focuses primarily on the reduced-form relationship between monetary policy and output-price level responses. Some of the key macroeconomic variables which are included in analysing the monetary policy channel are the real interest rate, real effective exchange rate, asset price and domestic bank credit. The results show that the most significant channel of monetary policy in Indonesia is the interest rate channel. The exchange rate channel is more profound in explaining the changes in price level. Meanwhile, the asset price and credit channels appear to be significant in explaining the sources of shocks in output only.
This paper is constructed as follows. First, the VAR model is constructed to identify the monetary policy shocks considered in this paper. The response of the inflation and output to the money supply shock will be analysed based on the impulse responses from each channel of transmission. Finally, the paper concludes by summarising the findings of this research.
2. Data and Model
2.1 The VAR Model
This paper follows the identification strategy provided by Sims (1980), and the detailed VAR model follows a case study in India by Aleem (2010). The VAR model is described as follows:
The form of VAR(p) is:
(1)
Where is the vector of endogenous variables and is the vector of exogenous variables, and are polynomial coefficients, is the vector of innovations or shocks.
Indonesia, a developing country, is an open-economy and understanding the sources of international shocks is important as it can influence the domestic economy. Foreign shocks such as world oil price (oil), federal fund rates (ffr) and the United States’ GDP (yus) are included in the model. The matrix for the VAR model can be written as follows:
To conduct the analysis, each endogenous variable will be incorporated in the VAR model. Each channel will have a different variable of interest based on the type of the channel. Since data for inflation expectation is not sufficient, there will be only four channels that will be analysed in this study. The model uses the following variables: (i) real output (yid); (ii) consumer price index (cpi); (iii) broad money supply (m2); (iv) market interest rate (irate); (v) real effective exchange rate (reer); (vi) asset price (idx); and (vii) domestic credit (credit). This study used the broad money supply as an instrument for monetary policy shocks because BI is targeting the broad money supply (Goeltom 2005).
Interest rate channel:
Exchange rate channel:
Asset price channel:
Credit channel:
2.2 Data Description
The data description can be found in Table 1 (Appendix A). In this study, the author uses data period from 2000Q1 to 2018Q1. All the variables are seasonally-adjusted using Census X-13 to remove the cyclical effects in the variables. Thereafter, the level variables are transformed to the natural logarithmic form to reduce the skewness of the variables. This method is done to make the interpretation become more intuitive.
2.3 Identification Strategy
Identification is necessary to pin down how macroeconomic variables respond to unexpected or surprise changes in monetary policy. For instance, when the policy interest rate is high, it does not necessarily mean that it increases output. It could be that since output is high, inflation tends to rise, causing interest rate to go up. This channel should be investigated using appropriate identification approach. Therefore, the Cholesky ordering of endogenous variables in the VAR model is output, cpi, the variable of interest and m2. The identification matrix can be obtained through Cholesky decomposition.
The output does not react contemporaneously to shock to other variables in the system. Price level reacts simultaneously to output shock but is not affected by the money supply shock and the variables of interest
market interest rate (irate), real effective exchange rate (reer), asset price (idx) and domestic credit (credit)concurrently. The variables of interest react contemporaneously to output and price level shocks in the short-run. Finally, the broad money supply, which is the proxy instrument for policy rate is influenced by all shocks in the system. The identification can be illustrated as follows:
Interest rate channel:
=
Exchange rate channel:
=
Asset price channel:
=
Credit channel:
=
2.4 Lag Length Selection
The information criteria are useful for choosing the optimal lag length. Lag length can be chosen based on the largest information criteria such as final prediction error (FPE), Akaike information criterion (AIC); Schwarz information criterion (SC), Hannan-Quinn information criterion (HQ) and other information criteria. Table 2 (Appendix A) shows the results of the information criteria for each model. The optimal lag length selection is relevant in having a better model for analysis and forecasting.
2.5 Data Stationarity
The variables in the system should be stationary in order to test for statistical significance and to compute for long-run moments. One way to check for the stationarity of the model is by using the characteristic inverse roots of the VAR model. By applying eigen decomposition analysis, the stability of the VAR system can be ensured as long as the absolute values of the eigenvalues are less than unity. Figure 2 (Appendix A) shows the graph of the eigenvalues from each system.
3. Results Analysis and Findings
The results of the impulse response functions analysis in this study contribute to the existing body of research in the transmission mechanism of monetary policy. Based on the analysis using short-run restriction VAR models, the results can be summarised as follows:
Indonesia
m2
yid
cpi
irate
reer
asset
credit
Expected
+
+
+
-
-
+
+
Fung (2002)
+
+
+
-
+
N/A
N/A
This study
+
+
+
-
-
+
+
3.1 Interest Rate Channel
The impulse response functions (see Figure 3 – Appendix B) depicts the impact of a positive shock to the money supply in the interest rate channel. According to Mishkin (2014), the impact of a positive shock to the money supply causes the real market interest rate to fall, which also means that the cost of capital also decreases. The real interest rate falls for ten quarters in response to one standard deviation positive shock in the money supply. The price level increases initially then fall in the sixth quarter. This result shows that there is no “price puzzle” in Indonesian economy after 2000 where BI started implementing inflation targeting – an indication that the shift to inflation targeting by BI is effective. Also, the price level responds negatively to aggregate demand which means that the inflation is caused by the supply side. Meanwhile, output reacts negatively to the positive shock of the money supply in the first period before it keeps on increasing from second quarter onwards. This situation can be explained by the increasing spending on investments as a result of a decrease in the real interest rate. This increase in investment spending leads to an increase in aggregate demand and output.
The variance decomposition (see Table 3 - Appendix A) shows that 7.67 percent of shocks in output after four quarters are due to shocks in the money supply and becomes more significant in the long run. Meanwhile, 19.31 percent of shocks in output is caused by the real market interest rate after four quarters which means that the interest rate channel is quite significant. Increase in money supply also affect the price level but not significant. However, the real interest rate seems to be more significant in price determination which accounted for 7.84 percent after four quarters.
3.2 Exchange Rate Channel
The impulse response functions (see Figure 4 – Appendix B) depicts the impact of a positive shock to the money supply in the exchange rate channel. A fall in the real interest rate causes domestic currency to be less attractive compared to the foreign currency, which causes depreciation of domestic currency. This depreciation makes domestic goods cheaper than foreign goods, hence, net export and output increases. In the results, the real exchange rate depreciates for more than eight quarters in response to one standard deviation positive shock in the money supply. The price level steadily increases by 0.3 percent in the following periods. Meanwhile, output reacts positively to the positive shock of the money supply, which keeps on increasing until being steady at 0.1 percent.
The variance decomposition (see Table 4 - Appendix A) shows that 0.83 percent of shocks in output after four quarters are due to shocks in the money supply. Meanwhile, 0.86 percent of shocks in output is caused by the real exchange rate after four quarters which means that the exchange rate channel is not significant in output. However, the real exchange rate appears to be more significant in explaining price changes which accounted for 12.93 percent after four quarters. Similarly, the price level is an essential source of shocks in the real exchange rate which accounted for 14.70 percent after four quarters. In general, the real exchange rate is a significant factor to explain the sources of shocks in the price level.
3.3 Asset Price Channel
The impulse response functions (see Figure 5 – Appendix B) describes the impact of a positive shock to the money supply in the asset price channel. The asset price channel can work through two possible conditions: a wealth effect on consumer spending (Modigliani 1971) and Tobin’s q asset price valuation (Tobin 1969). According to Mishkin (1995), the impact of a positive shock to the money supply causes an increase in the asset price. Modigliani (1971) explained that the positive effect on asset price on consumption and output is possible because of the wealth effect (i.e., higher level of wealth when asset price increases). The asset price and price of goods rise at the second period in response to one standard deviation positive shock in the money supply. Meanwhile, similarly to interest rate channel, output reacts negatively to the positive shock of the money supply in the first period before it keeps on increasing from second quarter afterwards.
The variance decomposition (see Table 5 - Appendix A) shows that 1.65 percent of shocks in output after four quarters are due to shocks in the money supply and becomes more significant in the long run. Meanwhile, 3.19 percent of shocks in output is caused by the asset price after four quarters. Money supply is an important source of changes in the price level which accounted for 8.82 percent. Moreover, the asset price is significantly explained by the income effect which accounted for 10.75 percent after four quarters. These results confirm that the asset price channel appears to be significant.
3.4 Credit Channel
The impulse response functions (see Figure 6 – Appendix B) depicts the impact of a positive shock to the money supply in the credit channel. According to Mishkin (2014), the credit channel can work through two sub-channels: the bank lending channel and the balance-sheet channel. The impact of a positive shock to the money supply causes an increase in bank deposits, which increase the amount of money that a bank can lend out. Hence, investment is expected to be higher and in turn, increase in output. In the results, the domestic credit rises for more than eight quarters in response to one standard deviation positive shock in the money supply. The price level gradually increases by 0.1 percent in the following periods. Meanwhile, output reacts positively to the positive shock of the money supply, which keeps on increasing until being steady at less than 0.1 percent.
The variance decomposition (see Table 6 - Appendix A) shows that 0.86 percent of shocks in output after four quarters are due to shocks in the money supply. Meanwhile, 2.81 percent of shocks in output is caused by the domestic credit after four quarters which means that the domestic credit is quite significant in output. Also, the domestic credit is not significant in explaining price changes which accounted for less than 0.05 percent after four quarters. However, money supply seems to be an important source of shocks in both price and domestic credit level which accounted for 0.65 percent and 1.93 percent after four quarters respectively. In general, domestic credit is important in explaining the sources of shocks in output.
4. Conclusion
This paper employs VAR models to help identify the transmission mechanism of monetary policy to output and price levels in Indonesia using quarterly data from 2000Q1 to 2018Q1. From the IRFs analysis, the interest rate channel is more pronounced in the monetary transmission mechanism to the real output and price level in the economy. While the other channels such as exchange rate, asset price and credit channel are found to be weak and less effective.
The IRFs rely on its reduced form equations. The path of adjustments do not depend on the whole set of the endogenous variables but only in the subset of those variables. Therefore, it will be more accurate to use a more complex model like dynamic stochastic general equilibrium (DSGE) model to understand how adjustment mechanisms in monetary policy work. This can be the future extension topic of this paper.
References
Aleem, A 2010, ‘Transmission mechanism of monetary policy in India’, Journal of Asian Economics, vol. 21, no. 2, pp. 186–197.
Christiano, LJ, Eichenbaum, M & Evans, CL 1999, ‘Chapter 2 Monetary policy shocks: What have we learned and to what end?’, in Handbook of Macroeconomics, vol. 1, Elsevier, pp. 65–148, viewed 27 October 2018, <http://www.sciencedirect.com/science/article/pii/S1574004899010058>.
Erceg, CJ & Levin, AT 2002, Optimal Monetary Policy with Durable and Non-Durable Goods, SSRN Scholarly Paper, ID 366585, 1 December, Social Science Research Network, Rochester, NY, viewed 28 October 2018, <https://papers.ssrn.com/abstract=366585>.
Fung, BSC 2002, ‘A VAR analysis of the effects of monetary policy in East Asia’, viewed 29 October 2018, <https://www.bis.org/publ/work119.htm>.
Goeltom, MS 2005, ‘The transmission mechanisms of monetary policy in Indonesia’, no. 35, p. 24.
Mishkin, FS 1995, ‘Symposium on the Monetary Transmission Mechanism’, Journal of Economic Perspectives, vol. 9, no. 4, pp. 3–10.
― 2014, The Economics of Money, Banking and Financial Markets, 11 edition, Pearson, Boston.
Modigliani 1971, ‘Monetary Policy and Consumption: Linkages via Interest Rate and Wealth Effects in the FMP Model, Consumer Spending and Monetary Policy: The Linkages’, in Journal of Finance and Economics, vol. 5, Conference Series No. 5, pp. 219–232, viewed 29 October 2018, <http://pubs.sciepub.com/jfe/5/5/4/index.html>.
Ridhwan, MM, Henri L.F. de Groot, Piet Rietveld & Peter Nijkamp 2011, ‘The Regional Impact of Monetary Policy in Indonesia’, p. 29.
Sims, CA 1980, ‘Macroeconomics and Reality’, Econometrica, vol. 48, no. 1, pp. 1–48.
Taylor, JB 1995, ‘The Monetary Transmission Mechanism: An Empirical Framework’, Journal of Economic Perspectives, vol. 9, no. 4, pp. 11–26.
Tobin, J 1969, ‘A General Equilibrium Approach To Monetary Theory’, Journal of Money, Credit and Banking, vol. 1, no. 1, pp. 15–29.
Appendix A: Tables
Table 1: Data Description
Variables
Descriptions
Units
Sources
Real GDP ID (yid)
Real Gross Domestic Product for Indonesia based constant price at 2010
IDR billion
CEIC / Central Bureau of Statistics
Consumer Price Index (cpi)
Index for all goods and services
Index at 2010 = 100
Federal Reserve Economic Data (FRED)
Broad money (m2)
The money supply including all elements of M1, cash and checking deposits.
IDR billion
Bank Indonesia
Market interest rate (irate)
The interbank lending rate will be used for the proxy of the market interest rate
percent
Bank Indonesia
Real effective exchange rate (reer)
The weighted average of Rupiah in relation to an index of US dollar, adjusted for the effects of inflation
IDR/USD index at 2010=100
Bank for International Settlements (BIS)
Indonesia composite stock market price index (idx)
The primary stock market index in Indonesia which is used to quantify the value changes in the stock prices.
Index at 10 August 1982=100
Indonesia Stock Exchange
Domestic credit (credit)
Domestic credit is provided by domestic banks, all other sectors of the economy and non-residents
IDR billion
Bank for International Settlements (BIS)
Real GDP US (yus)
Real Gross Domestic Product for the US chained at 2012 Dollars
USD billion
Federal Reserve Economic Data (FRED)
Effective Federal Funds Rate (ffr)
The federal funds rate is the interest rate at which depository institutions trade federal funds (balances held at Federal Reserve Banks) with each other overnight.
percent
Board of Governors of the Federal Reserve System (US)
Oil price (oil)
Crude Oil Prices: West Texas Intermediate (WTI)
Dollars per Barrel
U.S. Energy Information Administration
Table 2: Lag Length Selection
Interest Rate Channel:
Lag
LogL
LR
FPE
AIC
SC
HQ
0
303.7951
NA
2.80e-09
-8.341887
-7.823833
-8.136357
1
642.2786
598.4782
2.45e-13
-17.68924
-16.65313
-17.27818
2
678.0157
59.04388*
1.40e-13*
-18.26133*
-16.70716*
-17.64474*
3
687.4559
14.50237
1.73e-13
-18.07119
-15.99897
-17.24907
4
702.0183
20.68276
1.86e-13
-18.02952
-15.43925
-17.00187
Exchange Rate Channel:
Lag
LogL
LR
FPE
AIC
SC
HQ
0
120.9515
NA
4.11e-07
-3.352354
-2.950928
-3.193966
1
562.3411
787.7106
8.54e-13*
-16.44126*
-15.50460*
-16.07169*
2
576.7940
24.01417
9.04e-13
-16.39366
-14.92177
-15.81291
3
582.2113
8.334213
1.28e-12
-16.06804
-14.06091
-15.27610
4
605.3862
32.80144*
1.06e-12
-16.28881
-13.74645
-15.28568
Asset Price Channel:
Lag
LogL
LR
FPE
AIC
SC
HQ
0
474.2374
NA
2.00e-11
-13.28224
-12.76419
-13.07671
1
805.6523
585.9799
2.15e-15
-22.42470
-21.38860*
-22.01365
2
837.9317
53.33129*
1.36e-15*
-22.89657*
-21.34241
-22.27998*
3
849.1717
17.26714
1.59e-15
-22.75860
-20.68638
-21.93648
4
863.1684
19.87942
1.74e-15
-22.70053
-20.11026
-21.67289
Credit Channel:
Lag
LogL
LR
FPE
AIC
SC
HQ
0
302.1048
NA
8.49e-10
-9.536825
-8.978333
-9.318368
1
551.9771
433.1121
3.51e-13*
-17.33257*
-16.21559*
-16.89566*
2
562.3048
16.52429
4.31e-13
-17.14349
-15.46802
-16.48812
3
568.3739
8.901324
6.19e-13
-16.81246
-14.57849
-15.93863
4
593.3650
33.32152*
4.83e-13
-17.11217
-14.31971
-16.01988
* indicates lag order selected by the criterion ; LR: sequential modified LR test statistic (each test at 5 percent level) ; FPE: Final prediction error; AIC: Akaike information criterion; SC: Schwarz information criterion; HQ: Hannan-Quinn information criterion.
Table 3: Variance Decomposition for Interest Rate Channel
Variance Decomposition of LYID:
Period
S.E.
LYID
LCPI
IRATE
LM2
1
0.003893
100.0000
0.000000
0.000000
0.000000
4
0.006387
69.87482
3.131630
19.31443
7.679116
8
0.009262
36.32532
2.976835
31.20594
29.49190
12
0.011147
25.42025
9.514406
26.75393
38.31141
16
0.012451
20.87433
14.67376
23.48573
40.96618
20
0.013516
18.22003
17.23522
22.06120
42.48354
Variance Decomposition of LCPI:
Period
S.E.
LYID
LCPI
IRATE
LM2
1
0.010640
0.634526
99.36547
0.000000
0.000000
4
0.021100
2.781783
86.49189
7.845026
2.881305
8
0.025660
2.193006
81.26373
14.47945
2.063817
12
0.026002
2.807067
80.50051
14.58705
2.105373
16
0.026310
2.865332
78.82861
15.27944
3.026624
20
0.026609
2.802515
77.82048
15.28847
4.088536
Variance Decomposition of IRATE:
Period
S.E.
LYID
LCPI
IRATE
LM2
1
0.742393
2.421306
13.14593
84.43276
0.000000
4
2.242353
1.088570
15.53915
79.25972
4.112567
8
2.802621
6.166341
13.54294
69.33630
10.95442
12
3.062965
8.027560
20.95647
61.21287
9.803100
16
3.155612
7.651026
21.29767
60.57544
10.47587
20
3.172979
7.577318
21.23383
60.09015
11.09871
Variance Decomposition of LM2:
Period
S.E.
LYID
LCPI
IRATE
LM2
1
0.011735
1.254724
0.812791
3.435916
94.49657
4
0.017550
3.017081
7.434814
6.822729
82.72538
8
0.021253
16.88569
5.866642
9.276768
67.97090
12
0.027534
14.98376
3.757095
22.41668
58.84246
16
0.032917
11.14385
6.189752
24.06320
58.60320
20
0.036872
9.230249
11.07727
21.88107
57.81141
Cholesky Ordering: LYID LCPI IRATE LM2
Table 4: Variance Decomposition for Exchange Rate Channel
Variance Decomposition of LYID:
Period
S.E.
LYID
LCPI
REER
LM2
1
0.004709
100.0000
0.000000
0.000000
0.000000
4
0.008562
98.23860
0.056156
0.866982
0.838262
8
0.011189
94.74542
0.422333
2.526722
2.305524
12
0.012870
91.94818
1.103045
3.411607
3.537164
16
0.014027
89.80125
1.967524
3.570526
4.660701
20
0.014864
87.92264
2.911606
3.387993
5.777762
Variance Decomposition of LCPI:
Period
S.E.
LYID
LCPI
REER
LM2
1
0.010285
0.557177
99.44282
0.000000
0.000000
4
0.020144
8.990118
76.26389
12.93631
1.809690
8
0.029831
16.48043
50.14773
28.47047
4.901367
12
0.036648
18.71514
38.63923
35.46921
7.176410
16
0.041032
18.82635
33.55629
38.69430
8.923048
20
0.043798
18.18413
31.18909
40.27588
10.35090
Variance Decomposition of REER:
Period
S.E.
LYID
LCPI
REER
LM2
1
3.275771
2.209299
10.61276
87.17794
0.000000
4
4.895918
1.994728
14.69857
83.00738
0.299318
8
5.194567
2.270984
18.28841
78.87413
0.566481
12
5.319362
4.652783
19.12158
75.65865
0.566985
16
5.466189
7.569145
18.62038
73.25665
0.553816
20
5.590825
9.804089
17.95910
71.66450
0.572310
Variance Decomposition of LM2:
Period
S.E.
LYID
LCPI
REER
LM2
1
0.012198
3.722169
2.155218
27.96794
66.15468
4
0.020846
2.107303
6.054481
24.37720
67.46101
8
0.026846
6.711449
10.98284
19.88979
62.41592
12
0.031481
11.43727
14.41123
17.00185
57.14965
16
0.035392
14.61020
16.69299
15.32069
53.37612
20
0.038783
16.58386
18.26399
14.34596
50.80620
Cholesky Ordering: LYID LCPI REER LM2
Table 5: Variance Decomposition for Asset Price Channel
Variance Decomposition of LYID:
Period
S.E.
LYID
LCPI
LIDX
LM2
1
0.004383
100.0000
0.000000
0.000000
0.000000
4
0.007032
92.46741
2.687585
3.192348
1.652656
8
0.009071
82.33949
2.073578
8.688392
6.898540
12
0.010968
72.32839
3.123238
13.92429
10.62408
16
0.012646
64.99650
5.040392
17.11878
12.84433
20
0.014132
59.48772
7.115119
19.16000
14.23716
Variance Decomposition of LCPI:
Period
S.E.
LYID
LCPI
LIDX
LM2
1
0.011933
0.243392
99.75661
0.000000
0.000000
4
0.021436
0.617897
89.49672
1.063527
8.821859
8
0.026075
0.532270
81.81934
7.796618
9.851772
12
0.028211
0.498317
80.21287
9.216902
10.07191
16
0.029307
0.484943
79.53119
9.811529
10.17234
20
0.029889
0.480958
79.17770
10.11605
10.22529
Variance Decomposition of LIDX:
Period
S.E.
LYID
LCPI
LIDX
LM2
1
0.102219
11.07300
0.969112
87.95788
0.000000
4
0.158817
10.75208
1.756993
86.14071
1.350218
8
0.163584
10.14723
6.854441
81.29229
1.706037
12
0.166177
9.887476
8.573339
79.48189
2.057295
16
0.167650
9.750625
9.547491
78.44705
2.254836
20
0.168525
9.676770
10.10122
77.84711
2.374901
Variance Decomposition of LM2:
Period
S.E.
LYID
LCPI
LIDX
LM2
1
0.016061
1.185146
3.778642
3.193534
91.84268
4
0.022952
8.787830
3.788296
11.86394
75.55994
8
0.030507
23.24790
2.674553
23.34257
50.73498
12
0.035148
28.72334
4.276190
23.89642
43.10405
16
0.039376
30.85945
6.187618
24.58667
38.36626
20
0.043133
31.54053
8.098200
25.07802
35.28326
Cholesky Ordering: LYID LCPI LIDX LM2
Table 6: Variance Decomposition for Credit Channel
Variance Decomposition of LYID:
Period
S.E.
LYID
LCPI
LCREDIT
LM2
1
0.003032
100.0000
0.000000
0.000000
0.000000
4
0.005603
96.24726
0.073696
2.812844
0.866204
8
0.007446
93.77926
0.715893
3.237590
2.267258
12
0.008746
91.24958
1.879666
3.302944
3.567813
16
0.009796
88.73741
3.304074
3.292009
4.666509
20
0.010695
86.38227
4.787512
3.257821
5.572398
Variance Decomposition of LCPI:
Period
S.E.
LYID
LCPI
LCREDIT
LM2
1
0.010999
1.171561
98.82844
0.000000
0.000000
4
0.019236
2.935354
96.38552
0.027938
0.651186
8
0.023517
4.361958
93.91480
0.027221
1.696025
12
0.025444
4.995750
92.55445
0.037354
2.412442
16
0.026387
5.208688
91.90441
0.042826
2.844073
20
0.026867
5.239316
91.61553
0.044302
3.100857
Variance Decomposition of LCREDIT:
Period
S.E.
LYID
LCPI
LCREDIT
LM2
1
1.527640
0.008412
0.662962
99.32863
0.000000
4
1.591089
4.339904
0.696857
93.02595
1.937289
8
1.610827
6.134028
0.691420
90.92188
2.252676
12
1.617361
6.828907
0.687989
90.23384
2.249259
16
1.621150
7.231068
0.691117
89.83332
2.244498
20
1.624125
7.523314
0.703917
89.51827
2.254501
Variance Decomposition of LM2:
Period
S.E.
LYID
LCPI
LCREDIT
LM2
1
0.009537
5.528801
1.359330
5.628398
87.48347
4
0.015071
3.261917
6.164366
3.024729
87.54899
8
0.018557
10.20525
13.17978
2.115265
74.49970
12
0.021465
18.65382
17.57393
1.957739
61.81451
16
0.024014
25.19223
19.98210
1.983319
52.84235
20
0.026244
29.96330
21.32789
2.039472
46.66934
Cholesky Ordering: LYID LCPI LCREDIT LM2
Appendix B: Figures
Figure 1: Transmission Mechanism of Monetary Policy
Figure 2: Stationarity of the VAR Model
Note: No root lies outside the unit circle. Therefore, VAR satisfies the stability condition.
Figure 3: Impulse Response Functions for Interest Rate Channel
Figure 4: Impulse Response Functions for Exchange Rate Channel
Figure 5: Impulse Response Functions for Asset Price Channel
Figure 6: Impulse Response Functions for Credit Channel
21