Examlex
What is found in a mature ecosystem?
a.low efficiency of nutrient recycling
b.high efficiency of energy use
c.mainly annual plants
d.low species diversity
Monetary Tool
Instruments used by central banks to control the supply of money in the economy, impacting interest rates and overall economic activity.
Open-Market Operations
These are actions, like buying or selling government bonds, undertaken by central banks to control the money supply and interest rates.
Price-Earnings Ratios
A valuation ratio of a company's current share price compared to its per-share earnings, used to evaluate if a stock is over or undervalued.
S&P 500 Index
An American stock market index based on the market capitalizations of 500 large companies listed on stock exchanges in the United States.
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