Evidence suggests that short-term interest rate volatility peaks with the level of short rates, while equity volatility responds asymmetrically to positive and negative shocks. We present an LM based test that distinguishes between level effects and asymmetry in volatility which is robust to the...

There is an extensive theoretical and empirical literature discussing the link between short-term interest rate volatility and interest rate levels. We present an LM based test for the presence of a level effect which is robust to the presence of unidentified nuisance parameter under the null of...

Empirical evidence documents a level effect in the volatility of short term rates of interest. That is, volatility is positively correlated with the level of the short term interest rate. Using Monte-Carlo simulations this paper examines the performance of the commonly used Engle-Ng (1993) tests...

Maps of completely proper rationality are introduced so as to parametrize departure from CARA decisionmaking in terms of level effects, and deepen the link between risk aversion, prudence and higher order concepts in connection with the objective approach to riskiness set forth by Aumann and...

Using threshold cointegration and error-correction model, this paper has investigated the channels through which Africa (proxied by South Africa) can boost its economic growth via its trade with East Asia (represented by China). The results support threshold cointegration and non-linear...