Variable

Mean

SD

Minimum

Maximum

X₁: Gross Domestic Product (GDP)

United States

401,244.3

522,698.2

33,256.3

2,997,733

Northeast

462,490.6

533,471.5

33,256.3

1,668,866

Midwest

352,814.2

256,279.3

52,014.9

865,310.4

South

409,741.2

436,277.3

73,481.3

1,802,511

West

406,628.2

794,057

39,118.5

2,997,733

X₂: Personal Income

United States

17,813,035

235,888.14

17,535,505

18,077,710

Northeast

1,786,038

1,918,453.98

135,715

5,367,728

Midwest

1,149,510

886,331.85

168,591

2,896,757

South

1,531,151

1,573,303.59

203,133

5,781,081

West

1,507,416

2,882,075.26

175,273

10,056,517

X₃: Personal Consumption Expenditures

United States

284,015

336,503.7

24,707

1,858,421

Northeast

317,052

335,081.55

31,283.8

1,029,888

Midwest

220,625

124,216

36,863.1

477,536

South

283,318

294,742.34

42,655

1,120,665

West

252,882

488,612

24,707

1,858,420.9

X₄: Participants in the SNAP Program

United States

865,475.90

952,649.60

33,853

4,340,042