Font-family: Song Ti, SimSun'& gt( 1) adapts to the overall unit change of sampling survey; Overcome sample aging; Adapt to the changes in economic structure.
(2) Matters needing attention
Font-family: Song Ti, SimSun'& gt 1. Scientifically determine the number of rotated sub-samples.
Font-family: Song Ti, SimSun'& gt2. Reasonably arrange the rotation period of samples.
Font-family: Song Ti, SimSun'& gt3. Specific methods of sample rotation
Font-family: Song Ti, SimSun'& gt4. Time of sample rotation
Font-family: Song Ti, SimSun'& gt5. Inspection of sampling rotation scheme