Question

Why might a range of dashboard economic indicators be difficult to include in one single measure such as GDP ?

Short answer

Non monetary exchange, Externalities, GDP composition - indicators of welfare are difficult to be included in single measure GDP

Step-by-step solution

GDP and welfare basics 

Gross Domestic Product is the aggregate value of final goods and services produced by an economy, during a specified period.

Welfare is the sense of socio economic wellbeing.

Explanation 

GDP doesn't include following indicators of welfare

• Non monetary exchange - of goods and services, like care work of house wives
• Externalities - show extra positive and negative side effects, like parks as positive externalities and pollution as negative externalities respectively
• GDP composition - of goods and services is important for welfare, like food is positive effect good but alcohol is negative impact good.