Does growth reflect good and bad dictators, or just good and bad statisticians?

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የመረጃ ቲቪ አባል በመሆን የሳተላይት ቲቪውን ቀጥታ ስርጭት፣ ወቅታዊ ዜናዎችን እና ትንተናዎችን፣ የመዝናኛ ፕሮግራሞችን፣ ስፖርት እና ሌሎችንም ዝግጅቶቻችንን በፍጥነት እና ጥራት ስልክዎ፣ ኮምፒዩተርዎ ወይም ቲቪዎ ላይ ማየት ይችላሉ። እዚህ ሊንክ ላይ በመጫን አባል ይሁኑ።

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Bad statisticians make a lot of measurement mistakes. Average growth over 1960-2008 might have zero mistake ON AVERAGE, but there will randomly be some countries with a string of exaggerated growth rates. Other countries will randomly have a string of underestimated growth rates. So the variance of growth will be higher the worse the data quality – which is exactly what we see in the picture.

Of course, I am not saying China or Singapore or Taiwan have high growth (and Liberia has horrible growth) ONLY because of measurement error. Other indicators confirm the East Asian booms — but are we really sure growth was 6 percent per capita per year, instead of 4 percent pread moreer capita per year?

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