RESTRICTED STRUCTURAL CHANGE AND THE UNIT ROOT HYPOTHESIS

In a classic paper, Nelson and Plosser could not reject the unit root hypothesis in favor of trend stationarity for 13 out of 14 long-term annual macro series. Subsequent studies, allowing for one or two structural changes, have found more rejections with a broken trend stationary alternative. Since these changes are defined to be permanent, the rejections do not provide evidence of trend stationarity. We propose new tests for a unit root in the presence of restricted structural change. Allowing for two offsetting structural changes, we reject the unit root null in favor of restricted trend stationarity for 6 out of 13 series. ( JEL C22, E32)     

Some Dominant Perspectives in the Literature Relating to Multi-Racial Social Work

Summary This article represents an attempt to provide an overall frameworkfor the understanding of the social work literature relatingto racial minorities. It traces the main currents of socialwork thought from the earliest contributions of the late 1960sto the more recent work of the early 1980s. Four main themesare identified in the literature, which are referred to as theanthropological approach, liberal pluralism, cultural pluralismand the structuralist position. The conclusion attempts to tentativelydraw out the relationships between the literature, social workpractice and ultimate race relations goals.     

WHITE REACTIONS TO BLACK CANDIDATES: WHEN DOES RACE MATTER?

This paper examines the role of race in elections where oneof the candidates is black. Using the 1982 California gubernatorialelection between Tom Bradley and George Deukmejian as a casestudy, the paper shows that whereas racial attitudes were asignificant influence on the voting decisions of whites, Bradley'sbackground did not stimulate an unusual level of racially motivatedbehavior. The paper argues that the impact of a candidate'srace on voting depends on a number of contextual factors, includinghis prior record and campaign style. The paper also proposesa technique for comparing the results of biracial electionswith contests where ah1 the candidates are white as a methodfor estimating the level of racial voting.     

THE "RUSH TO TRANSPLANT" AND ORGAN SHORTAGES

Normally, economists expect entry to improve industry performance. The effects of entry, however, can become perverse. Here, we examine the causes and effects of observed entry into the transplantation industry. Entry appears to be caused by economic rents created by the shortage of organs resulting from the current policy proscribing payment to organ donors. Under this policy, entry has little effect on the number of transplants performed. Consequently, entry spreads available organs among an increasing number of transplant centers, resulting in both increased costs and lower success rates. Thus, current policy simultaneously encourages entry and perverts its normally salutary effects.     

THE INCOME EFFECTS OF THE SOURCES OF MONETARY CHANGE: AN HISTORICAL APPROACH*

This paper attempts to answer the question – does the way in which the quantity of money is introduced into the economic system matter or only the amount introduced? The question of the importance of the sources of monetary change has become a key issue between Monetarists and Neo-Keynesians. The approach of the paper is to compare different periods in U. S. monetary history over the time span 1834–1914, which exhibited different sources of monetary change, to see whether the source of monetary change significantly affected the relationship between money and income between these periods, as well as within them. In the majority of cases examined, the income effects of the sources of monetary change were found to be insignificant.     

The Micro-economics of Old People's Homes

Summary Eleven old people's homes in England were studied to investigatehow money was distributed within the home, what it had to coverand how it could be spent. The level of the Personal Allowanceand the problems of providing shopping facilities are discussed.The relationship between questions of money and independence,initiative and responsibility in old peoples' homes are consideredand suggestions are put forward to increase old peoples' choiceand control over their own lives.