Term 
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        Definition 
        
        | the total quantity of goods and services produced in an economy in a given period |  
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        Term 
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        Definition 
        
        | the total income received by all factors of production in a given period |  
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        Term 
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        Definition 
        
        | the relationship between consumption and income |  
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        Term 
        
        | marginal prpensity to consume (MPC) |  
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        Definition 
        
        | that fraction of a change in income that is consumed, or spent |  
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        Term 
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        Definition 
        
        | the part of aggregate income that is not consumed |  
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        Term 
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        Definition 
        
        | something that its always true |  
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        Term 
        
        | marginal propensity to save (MPS) |  
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        Definition 
        
        | the fraction of a change in income that is saved |  
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        Term 
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        Definition 
        
        | those additions to capital stock and inventory that are planned by firms. |  
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        Term 
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        Definition 
        
        | the actual amount of investment that takes place; it includes items such as unplanned changes in inventories |  
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        Term 
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        Definition 
        
        | occrus when there is no tendency for change. in the macroeconomic goods market, equilibirum occurs when planned aggregate expenditure is equal to aggregate output. |  
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        Term 
        
        | planned aggregate expenditure |  
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        Definition 
        
        | the total amount the economy p lans to spend in a given period |  
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        Term 
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        Definition 
        
        | the ratio of the change in the equilibrium level of output to a change in some exogenous variable |  
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        Term 
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        Definition 
        
        | a variable that is assumed not to depend on the state of the economy - that is, it does not change when the economy changes |  
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