Subduing High Inflation in Romania. How to Better Monetary and Exchange Rate Mechanisms?



William Davidson Institute Working Paper 402

Appendix A. Main econometric tests
1. Granger causality tests:

Sample: 1997:01 2001:03

Lags: 4__________________

Null Hypothesis:_______________________

Obs

F-Statistic

Probability

DVN does not Granger Cause INF

51

31.7794

3.3E-12

INF does not Granger Cause DVN

_ 1.74375

_ 0.15843

Sample: 1997:01 2001:03

Lags: 4______________________________________________________________________

Null Hypothesis:_______________________

Obs

F-Statistic

Probability

DRM does not Granger Cause INF

51

5.45475

0.00125

INF does not Granger Cause DRM

0.24376

0.91183

____________

____________

2. The VAR ESTIMATE

Included observations: 51

Standard errors & t-statistics in parentheses

DRM

INF

DVN

DRM(-1)

-0.269374

0.113136

0.540687

(0.17023)

(0.08314)

(0.20360)

(-1.58239)

(1.36074)

(2.65569)

DRM(-2)

-0.125972

0.089478

0.263304

(0.18591)

(0.09080)

(0.22235)

(-0.67758)

(0.98542)

(1.18418)

DRM(-3)

0.094973

0.190977

0.429138

(0.17674)

(0.08632)

(0.21138)

(0.53737)

(2.21242)

(2.03021)

DRM(-4)

-0.170300

0.121228

-0.243264

(0.19578)

(0.09562)

(0.23414)

(-0.86988)

(1.26783)

(-1.03895)

INF(-1)

0.531374

0.113846

1.153003

(0.29812)

(0.14561)

(0.35655)

(1.78240)

(0.78187)

(3.23376)

INF(-2)

0.210050

0.439586

-0.394660

(0.29914)

(0.14610)

(0.35777)

(0.70218)

(3.00876)

(-1.10312)

INF(-3)

-0.040200

0.080365

-0.547886

(0.31606)

(0.15436)

(0.37800)

(-0.12719)

(0.52061)

(-1.44943)

INF(-4)

0.083056

-0.166512

-0.174799

(0.16214)

(0.07919)

(0.19392)

(0.51225)

(-2.10269)

(-0.90141)

DVN(-1)

0.187730

0.370855

0.642119

(0.14123)

(0.06898)

(0.16891)

(1.32921)

(5.37628)

(3.80146)

27



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