The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.NEW YORK (TheStreet) -- On Friday, forecasters expect the Labor Department to report the economy added 201,000 jobs in March, down from 227,000 in February, but in line with the moderate pace of economic recovery. The economy expanded at a 3% annual pace in the fourth quarter and 1.7% for all of 2011. Recent consumer spending and other data indicate growth slowed a bit in the first quarter, to 2% or 2.5%. If productivity gains are only modest, this pace will support job gains in the range of 200,000 a month through the spring. Two hundred thousand a month is hardly enough to replace all those jobs lost during the Great Recession and provide opportunities for new graduates looking for work. Unemployment is expected to remain at about 8.3% and could begin creeping up again this summer. 7 Companies That Keep on Growing Over the past three years, the percentage of adults participating in the labor force -- those employed, self employed, or unemployed but looking for work -- declined significantly. If the adult participation rate was the same today as when Barak Obama became president, unemployment would be 10.8%. Adding adults on the sidelines, who say they would re-enter the labor market if conditions improved, and part-time workers, who would prefer full-time positions, the unemployment rate becomes 14.8%. Factoring in college graduates in low-skill positions, like counterwork at Starbucks, and unemployment is much higher still. >Examining the Employment-to-Population Ratio Longer term, the economy must grow 3% annually to keep unemployment steady, because advances in technology permit labor productivity to increase 2% each year and population growth pushes up the labor force about 1%. If conditions are mediocre and businesses cautious, productivity growth can slip -- equipment and computers are kept beyond their economically useful lives. Then unemployment can be kept steady with 2.5% growth, or even 2%, but that poses risks.