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Table 2 Coefficients of variation (CV): between periods–within markets

From: Public buffer stocks as agricultural output price stabilization policy in Ghana

Period

Market

Techiman market

Tamale market

Ho market*

Crop

Maize

Rice

Maize

Rice

Maize

Rice

Policy-off period

Mean

0.290

0.355

0.258

0.339

0.434

0.542

SD

6.404

5.952

5.032

7.664

9.076

6.822

CV (%)

22.10

16.77

19.47

22.61

20.93

12.58

Policy-on period

Mean

0.373

1.078

1.231

3.118

0.698

1.725

SD

5.591

5.355

7.728

23.149

13.297

21.046

CV (%)

15.01

4.97

6.28

7.43

19.05

12.20

  1. The number of observations for the policy-off period is 59 and for the policy-on period 51
  2. *For the Ho market, the first and second periods are not distinguished by policy intervention