20 SOCIAL SCIENTIST 2. Of this, the change in employment attributable to a change in labour intensity is: (4j2 -- 4jl) XAiji (2) 3. and the change due to a change in area under crop j in state i is: (Aij2 X L^) - (Aiji X Lijp — [ (Lip —4jl) X A^l = HI (Aij2 — Aiji) (3) B. 4. For 'all crops' in state i, the change in employment attributable to a change in labour intensity is: n £ (4j2 — 4jl) X Aiji (4) j=l ' - ' 5. The change in labour absorption in all crops due to area changes is: n £ (A^ X 4j2) - (Aiji X LIJI) — [ (Lij2 - 4jl) X A^l n = £ 4i2 (Aij2 — Ain) (5) j=l J r- But this effect of undifferentiated area change is the combined outcome of: (a) changes is cropping patterns, and (b) changes in gross cropped area under the n crops. 6. Of this effect of 'undifferentiated area change' on employment, the change in labour use attributable to a change in GCA is: n n n n £ A^ X 4j2 - [ £ (L^ X A^)/ 5>ij2] X £ A^ (6) j==l j=l j=l j=l 7. Of the undifferentiated area change effect, the remainder, which is the change in employment attributable to changes in cropping patterns is: (5) — (6) (7) C. 8. At the all-India level, for all crops in all 13 states, the change in employment attributable to changes in labour intensity, is: 13 n N £ £ (4j2-4jl) X Aiji (8) i=l j=l 9. Similarly, the all India, change in labour use due to changes in GCA is: 13 n 13 n n n £ '£Aij2X4j2 £ [((£4j2X£Aij2)/£Aij2) i==l j=l / r i=l j=l / j=l ^ j=l x£Aiji] (9)