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发表于 2019-10-31 12:06:37
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Consider the following binary variable version of the fixed effects model. Each regressor DjDj 3 {) q/ z. M. W- `. w% w2 [$ s
is a binary variable that equals 1 when i = j and 0 otherwise. Note that the binary variable Upper D 1 Subscript iD1i
. r4 l; S6 u& Z1 D- l0 t$ b" t. ?8 xfor the first group is arbitrarily omitted. 3 ]: }9 L) |( X; _3 q, O8 d( \( z
$ v4 g0 b4 n( c" B' L @
Upper Y Subscript it equals beta 0 plus beta 1 Upper X Subscript it plus gamma 2 Upper D 2 Subscript i Baseline plus gamma 3 Upper D 3 Subscript i Baseline plus ... plus gamma Subscript n Dn Subscript i plus u Subscript itYit=β0+β1Xit+γ2D2i+γ3D3i+...+γnDni+uit 8 P; B( z" y; Q3 r: o
7 v% y w% S- d8 w$ y- n1 BUse the regression in the equation above and the tool palette to the right to answer the following questions. # u5 ^5 V6 m \' L( J* w
What is the slope and intercept for entity 22 & M6 k! W; _+ B
in time period 33?
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; b1 z( Z t2 W# U x* u- C
The slope of entity 22 2 o, j; t2 O1 t6 }
in time period 33 8 c }0 l- y. d# e) Y% _7 z
is 33.
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The intercept of entity 22 E1 t* k) j+ M4 l6 v% L8 P
in time period 33 ! Q2 x/ E O- R- i+ l
is nothing.
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- y" q, Y1 m: N/ e& a(Properly format your expressions using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the _ character.), G1 W5 a$ A" e. H) V& Q
: Q4 b- z- w7 W( W
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