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(prō′dŭk-tĭv′ĭ-tē, prŏd′ək-)
1. The quality of being productive.
2. Ecology The rate at which photosynthesizing or chemosynthesizing producers form organic substances that can be used as food by consumers.


the amount of material in terms of BIOMASS or energy generated in a given time in an ECOSYSTEM over and above the STANDING CROP.


the amount or quality or value of the output of a food animal. Best measured in terms of the percentage productivity compared with a target based on productivity of peers. It is customary nowadays to state productivity in terms of return on capital invested, or per head of livestock or per hectare or per unit of workforce, and may be for a period, e.g. annual, lifetime, for a specific unit, e.g. farm, the dairy herd on a mixed farm.

productivity index
includes such items as wool yield per hectare, wins per race starts.
productivity marginal value
see marginal revenue.

Patient discussion about productivity

Q. Is it safe for teenagers to use weight loss products? This isn't an ethical question, but quite literally asking if it is safe for a teenager to use weight loss solutions like weight loss milkshakes and other things of that nature. Thanks in advance!

A. From health point of view- there shouldn’t be a problem if those products are safe. But from an educational view- the minute you start relaying on weight loss products to loose weight for you- you become lazy. Then you’ll loose weight and gain it back with some extra. You need to start acquiring good habits while you are young- balanced nutrition and sports.

Q. i am diabetic :( what is the right diet for me? should i avoid sugar based products? what is the amount of sugar in the blood that consider to be normal ?

A. You may find it all here:

Q. are colon cleansing products safe and are they beneficial?

A. Unless you are having a problem with regularity I wouldn't fool around with cleansing products. Eat more fruits and vegetables and drink LOTS of water. Before I would do any colon cleansing I would add a product like metamucil or bran.

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References in periodicals archive ?
It is now well recognized that economic development is synonymous with productivity growth.
This Economic Commentary examines how the process of manufacturing plants' entry, expansion, and exit affects the productivity growth of an economy.
To keep living standard (Y/P) constant, productivity (Y/L) must rise to offset the fall in labor participation.
A recent study by the International Center for Indoor Environment and Energy (ICIEE) in Denmark demonstrated that improved thermal comfort, reduction in indoor pollutants, and enhanced ventilation rates and effectiveness can increase productivity by 5-10%.
The combined positive effect on productivity of making these changes will be far greater than what one would expect from merely eliminating each of the individual problem castings.
There have been many examples of increased productivity.
Within finance and other business-support groups, productivity gains of 10 percent to 30 percent are typical.
Switching the work tool to best match the material being handled can help boost productivity.
Improvements in productivity and performance should be rewarded more rapidly even if that results in less downside protection.
Indeed, McKinsey Global Institute's studies of countries around the world show that gaps between productivity levels in their large, employment-intensive local service sectors, such as retail and construction, explain a substantial amount of the gaps between their respective GDP per head figures.
Productivity initiatives usually have two purposes: security of delivery and increased throughput.

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