Sometimes I encounter the word **indeterminacy** when macro books are discussing sunspot shocks, expectational errors, etc. (but stability and eigenvalues are not mentioned). **Here, indeterminate equilibrium appears to be when you have sunspot shocks in the model.**

Other times, I encounter **indeterminacy** when macro books are discussing stability, eigenvalues, BK condition, etc (But no mention of sunspot shocks, expectational errors). **Here, indeterminate equilibrium appears to be when you have fewer unstable eigenvalues than jump variables in the model (i.e., the model is too stable leading to multiple equilibria)**

And sometimes indeterminacy is mentioned when some equation does not converge.

Are these all kinda connected in one definition of indeterminacy? Thus,

- sunspot shocks and expectational errors
- stability and multiple equilibria.
- Divergence.

Thanks!