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You estimate 4 different specifications of an econometric model by adding a variable each time and get the following results Which model appears to be correctly specified?
Consumerism
The protection or promotion of the interests of consumers, often emphasizing the importance of producing and consuming goods that fulfill genuine needs.
Grassroots Movement
A movement driven by the politics of a community or society's lowest level, often advocating for social or political change from the ground up.
Conspicuous Consumption
The purchase and use of expensive goods and services to display wealth and social status rather than for practical and necessary reasons.
Sustainable Growth
The rate of growth that an organization can maintain without running into problems, by balancing income with spending in long-term plans.
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