The outbreak of the financial crisis in 2008 witnessed a marked contraction in US consumption spending that had hitherto been boosted by historically high levels of household debt-financing. These events question the validity of conventional models of consumption based on the life-cycle...

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We develop a Keynesian model of aggregate consumption. Our theory emphasizes the importance of the relative income hypothesis and debt-finance for understanding household consumption behavior. It is shown that particular importance attaches to how net debtor households service their debts, and...

There are two optimality conditions in the M & P model of 1985. If the constant relative risk aversion is unity (log utility consumption), then correcting for risk-free rates that are “too low” will not prevent the equity optimality condition from seeming “too high” for observable...

Using Gretl, I apply ARMA, Vector ARMA, VAR, state-space model with a Kalman filter, transfer-function and intervention models, unit root tests, cointegration test, volatility models (ARCH, GARCH, ARCH-M, GARCH-M, Taylor-Schwert GARCH, GJR, TARCH, NARCH, APARCH, EGARCH) to analyze quarterly time...

The Keynesian intuition that increasing consumption can stimulate investment is verified empirically using US macroeconomic data. The investment multiplier is hypothesized to increase monotonically with the propensity to consume. However, the functional relationship is not that of the Keynesian...

In this paper I develop a New Keynesian dynamic stochastic general equilibrium model which features three different types of representative agents (THRANK): the poor hand-to- mouth, the wealthy hand-to-mouth and the non-hand-to mouth households. Compared to a full-scale HANK model, this model is...

In HANK, we show that fiscal policy is an appropriate macroeconomic stabilization tool at the ZLB. Fiscal policy achieves the same macroeconomic aggregates and the same welfare as hypothetically unconstrained monetary policy by replicating its transmission mechanism. Consumption taxes and labor...

Robust empirical evidence suggests that a steep slope of the nominal yield curve predicts an increase in the future real activity. We show that the negative of the slope closely traces the variation in the ex-ante real rate. We then argue that the predictive content of the slope for real...

The recent literature has shown that income inequality is one of the main causes of borrowing and debt accumulation by working households. This paper explores the possibility that household indebtedness is an important cause of rising income inequality. If workers experience rising debt burdens,...