{"product_id":"9789020707724","title":"Disturbances in the linear model, estimation and hypothesis testing: Estimation and Hypothesis Testing","description":"\u003ch1\u003eDisturbances in the linear model, estimation and hypothesis testing: Estimation and Hypothesis Testing\u003c\/h1\u003e \u003ch2\u003eDubbelman, C.\u003c\/h2\u003e \u003cp\u003e1. 1. The general linear model All econometric research is based on a set of numerical data relating to certain economic quantities, and makes infer­ ences from the data about the ways in which these quanti­ ties are related (Malinvaud 1970, p. 3). The linear relation is frequently encountered in applied econometrics. Let y and x denote two economic quantities, then the linear relation between y and x is formalized by: where {31 and {32 are constants. When {31 and {32 are known numbers, the value of y can be calculated for every given value of x. Here y is the dependent variable and x is the explanatory variable. In practical situations {31 and {32 are unknown. We assume that a set of n observations on y and x is available. When plotting the ob­ served pairs (x l' YI)' (x ' Y2)' . . . , (x , Y n) into a diagram with x 2 n measured along the horizontal axis and y along the vertical axis it rarely occurs that all points lie on a straight line. Generally, no b 1 and b exist such that Yi = b + b x for i = 1,2, . . . ,n. Unless 2 l 2 i the diagram clearly suggests another type of relation, for instance quadratic or exponential, it is customary to adopt linearity in order to keep the analysis as simple as possible.\u003c\/p\u003e \u003ch3\u003eDetails\u003c\/h3\u003e \u003cp\u003ePublished by: Springer\u003c\/p\u003e \u003cp\u003ePublication Date: 1978-07-31\u003c\/p\u003e \u003cp\u003eFormat: Paperback\u003c\/p\u003e \u003cp\u003eISBN-13: 9789020707724\u003c\/p\u003e \u003cp\u003eDOI: 10.1007\/978-1-4684-6956-1\u003c\/p\u003e \u003cp\u003eDimensions: 229cm x152cm\u003c\/p\u003e \u003cp\u003ePages: 108\u003c\/p\u003e ","brand":"Springer US","offers":[{"title":"Default Title","offer_id":47401088974988,"sku":"9789020707724","price":49.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9545\/1788\/files\/9789020707724.jpg?v=1775789686","url":"https:\/\/lateknightbooks.com\/products\/9789020707724","provider":"Late Knight Books and Services, LLC","version":"1.0","type":"link"}