Answers
  1. Load the BKF94.daf file and initialise its sampling design in sheet file1. Similarly, load the file BKF98.daf in the sheet file2 and initialise its sampling design. Consider that the two distributions are independent.

 
Initialising  the sampling weight: EDIT|Set Sample Design

 

  • After choosing the appropriate variable(s), click on  the button OK.

Use the DAD Application: DECOMPOSITION|FGT: GROWTH & DISTRIBUTION

  • After choosing the appropriate files, click on the button OK.
 

  1. Perform a sectoral decomposition for the observed  variation in the incidence and depth  of poverty when:

    • Households are grouped according to the variable ZONE (rural vs urban)

    • NVIE is the variable of interest for distribution 1 and NVIEI for distribution 2

    • t1 is the period of reference.

    • The poverty line is 41099 F CFA

Performing the sectoral decomposition

  • After choosing the appropriate variables and parameters, click on the  Compute button.

RESULTS

Sectoral Decomposition (Poverty Decomposition)

Session Date

Mon Jan 03 14:03:00 EST 2005

 

Execution Time

0.093 sec

 

FileName

BKF94.daf

BKF98.daf

OBS

8625

8478

Sampling Weight

WEIGHT

WEIGHT

Variable of interest

NVIE

NVIEI

Size variable

SIZE

SIZE

Group variable

ZONE

ZONE

Index of Groups

1-2

 

Option

Standard Deviation=No

Normalised

NO

Poverty line

41099

alpha

0

 

Distribution (1)

Distribution (2)

Estimate

0.44456461

0.20688566

 

Difference : P(2)-P(1)

Estimate

-0.23767895

Group #

Estimate (1)

Proportion (1)

Estimate (2)

Proportion(2)

Difference

1

0.51049732

0.83792892

0.23841603

0.83322322

-0.27208129

2

0.10368378

0.16207108

0.04935875

0.16677678

-0.05432503

Group #

(A) Intra-Sectoral

(B) Inter-Sectoral

(C) Interaction

Impact:A+B+C

1

-0.22798478

-0.00240224

0.00128033

-0.22910670

2

-0.00880452

0.00048790

-0.00025564

-0.00857225

 
 

  1. Use the Shapley approach to perform the decomposition again.

 

RESULTS

Sectoral Decomposition (Poverty Decomposition)

Session Date Mon Jan 03 14:13:40 EST 2005  
Execution Time 0.047 sec  
FileName BKF94.daf BKF98.daf
OBS 8625 8478
Sampling Weight WEIGHT WEIGHT
Variable of interest NVIE NVIEI
Size variable SIZE SIZE
Group variable ZONE ZONE
Index of Groups 1-2  
Option Standard Deviation=No
Normalised NO
Poverty line 41099
alpha 0

 

Distribution (1)

Distribution (2)

Estimate

0.44456461

0.20688566

 

Difference : P(2)-P(1)

Estimate

-0.23767895

Group #

Estimate (1)

Proportion (1)

Estimate (2)

Proportion(2)

Difference

1

0.51049732
0.83792892
0.23841603
0.83322322
-0.27208129

2

0.10368378
0.16207108
0.04935875
0.16677678
-0.05432503

Group #

(A) Intra-Sectoral

(B) Inter-Sectoral

(C) Interaction

Impact:A+B+C

1

-0.22734462
-0.00176208
0.00000000
-0.22910670

2

-0.00893233
0.00036009
0.00000000
-0.00857225