We provide theoretical underpinnings to the traditional IS curve by using the concept of basic and non-basic goods and services in the consumption basket. An extended version of this IS curve incorporates the effects of functional income distribution by appealing to rule-of-thumb behavior. An empirical analysis for both emerging and advanced economies shows that this IS curve does not suffer from the "IS puzzle," a weakness that affects its new Keynesian counterpart, when a measure of the nominal interest rate is used. The interest rate negatively and significantly affects output. Secondly, the second-order term typically specified in the output dynamics does not arise from structural consumption behavior. Thirdly, although we find significant rule-of-thumb behavior in that the labor share is statistically significant, optimal behavior dominates economies. Lastly, basics make up an overwhelming component of the consumption basket, which explains the sluggish response of output to shocks. The implication is that there is a need to extend the basic two-equation model into a 3-equation system by adding the dynamics of the labor share.
We study the pass-through of policy rate hikes and cuts to household and corporate lending and deposit interest rates in South Africa over the period January 2009 to December 2020. We show that rate hikes are typically passed through to mortgage interest rates completely while rate cuts are not. This asymmetry is more prevalent for household than corporate mortgages. Pass-through to household and corporate call deposit interest rates is typically complete, but cheque account interest rates are highly sticky and experience weak pass-through. Our results indicate that banks’ pass-through decisions often impose greater costs on households than firms, and may blunt the stimulatory effect of rate cuts by weakening their impact on debt servicing costs and the remuneration of deposit balances.
Search intensity, as well as the aggregate economic condition, is a crucial factor that determines unemployed workers’ success in job searches. Their search intensity is predicted to be procyclical in standard search and matching models. However, many empirical studies show that search intensity is countercyclical. This study examines the job search behavior of unemployed workers over business cycles using a search and matching model that incorporates wage rigidity and a generalized matching function. Unlike previous studies, the proposed model can generate both procyclical and countercyclical search intensities by introducing wage rigidity. This study calibrates the model to the U.S. economy and provides various impulse response analyses. The numerical exercises show that the model successfully and simultaneously reproduces countercyclical search efforts and sizable labor market fluctuations.