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Community Choice Aggregation (CCA), also known as Community Choice Energy, municipal aggregation, governmental aggregation, electricity aggregation, and community aggregation, is an alternative to the investor-owned utility energy supply system in which local entities in the United States aggregate the buying power of individual customers within a defined jurisdiction in order to secure ...
Aggregate supply curve showing the three ranges: Keynesian, Intermediate, and Classical. In the Classical range, the economy is producing at full employment. In economics, aggregate supply (AS) or domestic final supply (DFS) is the total supply of goods and services that firms in a national economy plan on
Oldcastle Materials Inc. is a supplier of asphalt, concrete, and other building materials, and also offers construction and paving services. The Atlanta-based company is a subsidiary of CRH plc, a publicly traded international group of diversified building materials businesses, [2] [3] and has approximately 18,000 employees at 1,200 locations, as of March 2018.
In 1953, GBQ Partners, a professional services firm was founded, [1] and is the largest Columbus-owned accounting firm. During the recession beginning in late 2007, Columbus's economy was not impacted as much as the rest of the country, due to decades of diversification work by long-time corporate residents, business leaders, and political leaders.
A Paleo-Indian fluted point, a very rare stone tool, was among them.[1] At the time of its discovery it was the oldest such site east of the Mississippi.[2] The site has been at the center of a battle between local archaeologists and the Pleasant Valley-based Dutchess Quarry and Supply Company, which actively produces dolomite gravel on the site."
Most aggregate is used in construction, including 97 percent of sand and gravel and 76 percent of crushed rock. Per capita usage in the United States in 1996 was 8.7 metric tons per year. [7] Use, and therefore production of aggregate, is determined by the construction industry.
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Slag, a byproduct of iron and steel-making composed primarily of highly impure glass, would normally be a waste product. However, it is in demand as an aggregate in concrete, asphalt paving, and construction fill. In 2014, the industry produced and marketed about 16.0 million mt of slag, worth an estimated $270 million. [16]