# Peak

• The transition from the end of an economic expansion to the start of a contraction.

Embedded terms in definition
Contraction

Referenced Terms
Business cycle: A predictable long-term pattern of alternating periods of economic growth and decline. The cycle passes through four stages: expansion, Peak, contraction, and trough.Repetitive cycles of economic expansion and recession.

Head & shoulders: In technical analysis, a chart formation in which a stock price reaches a Peak and declines, rises above its former peak and again declines and rises again but not to the second peak and then again declines. The first and third peaks are shoulders, while the second peak is the formation's head. Technical analysts generally consider a head and shoulders formation to be a very bearish indication.

Normal distribution: Is one of the most popular and well documented probability distributions. It is frequently depicted as the bell-shaped curve. This process underlies much of financial theory and practice. It is often relied upon for modeling efforts because two variables define its location and shape. These two variables are the mean and the standard deviation. It should be noted that normal distributions with larger standard deviations (or variances) are wider or flatter. This is because the greater volatility is dispersed over a wider range. Conversely, smaller standard deviations generate tighter formations which have a pronounced Peak appearance. When the mean value of a normal distribution is bounded by one standard deviation (plus or minus) then it is expected that

#### 68.3 percent of the values will occur in that region.

When the mean value of a normal distribution is bounded by two standard deviations (plus or minus) then it is expected that

#### 95.5 percent of the values will occur in that wider region.

When the mean value of a normal distribution is bounded by three standard deviations (plus of minus) then it is expected that 99.7 percent of the values will occur in that still wider region. When the distribution's mean is bounded by a plus and a minus standard deviation, the design is considered as Two-Tailed because both sides of the distribution are being evaluated. These parameterized regions are crucial to the understanding of Value at Risk (VAR) programs and many option pricing models. Also, many linear analysis techniques depend on the assumption and stability of a normal and independent probability functions. Many option pricing models use the annualized standard deviation as the volatility proxy.

Seasoned datings: Extended credit for customers who order goods in periods other than Peak seasons.

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