Difference between shocks, innovations and disturbances In macroeconomics and macroeconomic models, shocks, innovations, and disturbances are very prominent and often mentioned in the literature.

In general, is there a difference between macroeconomic shocks, disturbances, and innovations, or can these terms be used interchangeably?
In Greene "Econometric Analysis" the disturbance of linear regression,
$$\epsilon_t = y_t - \mathbf{x_t}\boldsymbol{\beta}$$

is estimated with the residual,
$$e_t = y_t - \mathbf{x_t b}$$

In the text, disturbances $\epsilon_t$ are also called innovations. Qualitative events in an economy that impact a process or model's variables or error term are shocks.