The Nonstationarity of Money and Prices in Interdependent Economies

In most nations, paths of monetary aggregates and prices consistently depart from stationary trends. This paper shows that this is a fundamental implication when monetary authorities of interdependent countries seek to smooth their home output and prices in the presence of incomplete world output-market integration and structural asymmetries. Using a two-country model with interdependent output supply schedules, we show that this conclusion holds whether the exchange rate floats or is fixed. It also holds if monetary policies are coordinated. Therefore, optimal monetary policy choices by central banks yield stationary paths for money and prices only under very specific conditions.     

Relative efficiencies of some simple Bayes estimators of coefficients in dynamic models — I

In this paper we consider some approximations to Bayes estimators of coefficients in simple autoregressive models and give an example of a Monte Carlo experiment where these approximate Bayes estimators yield a substantial improvement over the usual sampling theory or quasi-Bayesian estimators. The practical situation is represented by the case where the coefficient vector is known to lie in or on a hypersphere of radius r with center at 0. We show that arbitrariness in the choice of the value of r is often not catastrophic if r is sufficiently large, but finite.     

The impact of government intervention on the stabilization of domestic financial markets and on U.S. banks’ asset composition

The 2007–2009 financial crisis that evolved from various factors including the housing boom, aggressive lending activity, financial innovation, and increased access to money and capital markets prompted unprecedented U.S. government intervention in the financial sector. We examine changes in banks’ balance sheet composition associated with U.S. government intervention during the crisis. We find that the initial round of quantitative easing positively impacts bank liquidity across all bank samples. Our results show a positive impact of repurchase agreement market rates on bank liquidity for small and medium banks. We conclude that banks have become more liquid in the post-crisis period, especially the larger banks (large and money center banks). We show that real estate loan portfolio exposures have reverted to pre-crisis levels for money center banks and remained flat for all other bank samples.     

Urban economic base as a catalyst for movements in real estate prices

We examine the relation between housing prices in an MSA and its urban economic base. We create and employ new forward-looking employment growth indices that measure the urban economic strength of an MSA and find that it accounts for a significant and sizeable portion of the house price movements in that MSA. We argue that the forward looking measure is an indicator of future agglomeration growth for the MSAs. We further partition the urban economic growth into growth by various industries and track the attribution of their growth to housing prices over time. We find that for some MSAs, home prices are driven by the same set of industries over time, whereas for others, home prices are driven by a totally new set of industries in the later quarters, due to the birth of new industries. We also analyze the impact of the diversification of an urban economic base on home price volatility and observe that diversification decreases home price volatility. The result has larger implications for urban policymakers in selecting the appropriate type of industries relative to their existing mix of industries.     

Impacts of monetary and macroeconomic factors on food prices in eastern and southern Africa

Eastern and southern Africa has been experiencing relatively large increases in real food prices since the early 1980s. Real food prices in some African countries grew as much as 11% per year during the 1980-1996 period. The huge volatility in food prices coincided with the implementation of structural adjustment programmes in several African countries. This study examines the impacts of monetary and macroeconomic factors on real food prices in eastern and southern Africa. Using the technique of cointegration and error correction modelling to test the long-run relationship between real food prices and the factors that influence their behaviour in selected African countries. Demand elasticities for food are estimated for selected countries. The empirical results show that changes in domestic food production, coupled with income, trade, exchange rate and monetary policies have significant impacts on real food prices, with wide implications for food availability and food security in the region.     

THE TIME‐SERIES PROPERTIES OF UK INFLATION: EVIDENCE FROM AGGREGATE AND DISAGGREGATE DATA

This paper contrasts the time‐series properties of aggregate and disaggregate UK inflation. While aggregate inflation is found to be non‐stationary, unit root rejection frequencies are increasing when we use more disaggregate data. Structural break analysis suggests that structural shifts in monetary policy could alter inflation persistence. Additionally, panel evidence indicates that the unit root hypothesis can be rejected for sectoral inflation rates. Finally, we compare the persistence properties of UK inflation, finding statistically significant differences between aggregate and disaggregate series. Our analysis suggests that aggregation matters, which has important implications for econometric analysis and the conduct of monetary policy.