The peridot company purchased machinery on january 2, 2016, for $800,000. a five-year life was estimated and no residual value was anticipated. peridot decided to use the straight-line depreciation method and recorded $160,000 in depreciation in 2016 and 2017. early in 2018, the company revised the total estimated life of the machinery to eight years. required: 1. what type of change is this? 3. determine depreciation for 2018.

The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.

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