Social Security, Optimality, and Equilibria in a Stochastic Overlapping Generations Economy

Social security institutions implement intergenerational transfers and distribute risks over time. To compare various social security designs, we study an overlapping generations model with demographic shocks. Production takes place through a neoclassical production function subject to productivity shocks. We give a near characterization of optimal allocations. We study rational expectations equilibria when contributions are mandatory, based on labor and capital income. We also describe the equilibria of an economy with a voluntary pay-as-you-go social security fund, and show that they have a long-run optimality property. An example with Cobb–Douglas production and utility functions illustrates the results.     

Addressing the Legitimacy Gap in the Israeli Corporatist Revival

Since the mid-1980s, Israel's labour law and industrial relations have transitioned from a Continental corporatist system to an Anglo-American pluralist system. The process has been characterized by greater fragmentation of the labour market and the system of interests' representation. However, in recent years, there have been several episodes of nationwide collective agreements and social pacts. These agreements resonate with a second generation of social corporatist bargaining that has been identified in some European countries. In this article, I question the legitimacy of the new agreements. The legitimacy gap evolves from the use of corporatist instruments against the backdrop of a pluralist system. I discuss the attempts to increase the legitimacy of the corporatist instruments, pointing to their limited success. Future attempts must consider solutions that track the hybrid nature of the industrial relations system and devise institutions that bring together the traditional corporatist social partners and the new pluralist agents. Of particular importance is the need to consider the role of the new associations in civil society that voice the interests of the growing segment of disadvantaged workers in the secondary labour market.     

Short reviews

Centre for Employment Research, 1990: Ethnic Minority Businesses and Employment in Greater Manchester. Manchester: Greater Manchester Economic Development Officers Ltd, no price stated.

The National Economic Development Council, 1990: Working for Pleasure -Tourism and Leisure Tomorrow. London: NEDO, £15.00 Report, £35.00 Conference Papers.

John Freeman, Frank Gaffikin and Mike Morrissey, 1989: The Irish Economies: A Common Future? Amalgamated Transport and General Workers Union, Belfast. No price given.

Morrissey, H. 1989: Women in Ireland: The Impact of 1992. The Amalgamated Transport and General Workers Union.

Gorman. G. 1989: School-Industry Links. London: Kogan Page.

Brewster, C. and Teague, P. 1989: European Community Social Policy-Its Impact on the UK. Institute of Personnel Management, £30.00 cloth.     

Potentiel de Productivité et Efficacité Technique du Secteur Agricole en Afrique

This study utilizes frontier metaproduction functions to analyze inter‐region agricultural productivity differences. Technical efficiency scores are examined through estimation of stochastic frontiers for 16 African countries divided into three different regions (West Africa, East and Southern Africa, and North Africa) from 1970 to 2001. The idea is to explore the differences in efficiency and technological gaps of agricultural sector. Apart of common traits that characterize African agricultural sector, countries exhibit national and regional specificities. These diversities are such that it is difficult to make valuable generalizations. It appears from the results that: in West Africa, the level of technology is relatively good, meaning that there is no problem of input constraints. By contrast, the efficiency with which inputs are used is very low. The situation is very different in the East and Southern Africa, with the level of technology relatively low and appreciable technical level. At least, the North Africa countries make a performing mixture between technology and efficiency. Cette étude utilise les Meta frontières de production pour analyser les différences inter‐régionales de la productivité agricole. Les niveaux d'efficacité technique sont examinées par l'estimation des frontières stochastiques de 16 pays africains regroupés en trois régions (l'Afrique de l'Ouest, l'Afrique de l'Est et Australe, et l'Afrique du Nord), sur une période allant de 1970 à 2001. L'idée étant d'explorer les différences d'efficacité et les écarts technologiques du secteur agricole. Au‐delà des simples traits communs qui caractérisent le secteur agricole africain, on trouve des expériences nationales et régionales dont il est difficile, du fait de leur grande diversité, de tirer des généralisations valables. Des résultats de l'étude, il ressort que: en Afrique de l'Ouest, le niveau technologique est relativement satisfaisant, traduisant le fait que la présence des inputs ne représente pas une contrainte. Par contre le niveau d'efficacité avec lequel ces intrants sont utilisés est assez faible. La situation est tout autre en Afrique de l'Est et Australe avec un niveau technologique relativement faible et un niveau d'efficacité appréciable. L'Afrique du nord enfin fait un savant dosage entre efficacité et technologie.     

Nonmonetary asset exchanges revisited: An updated pedagogical approach

This paper reviews current GAAP for nonmonetary asset exchanges, presents a pedagogical approach that instructors and textbook authors can use to clarify their coverage of this topic, and highlights intermediate accounting textbooks that provide complete, accurate coverage of this topic.     

When does the majority become a majority? Empirical analysis of the time at which main market adopters purchase the bulk of our sales

The idea of a dual-market structure in the early stages of a product's life cycle has become one of the most widely accepted ideas among new product marketing practitioners in the past decade. Concepts such as “Early Market/Main Market” and “Visionaries/Pragmatists” have entered the lexicon of high-tech executives to express the notion that the market for new products is composed of early and main markets with a discontinuity in the diffusion process in between them. Moreover, these concepts have been at least partially tested and verified in the marketing academic literature in the past few years.We extend this branch of research by investigating the timing issues in dual-market cases. We define Change-of-Dominance Time (CD-Time) as the number of years it takes main market adopters to outnumber early market adopters. We empirically investigate this timing issue on a comprehensive data set of new product sales in the consumer electronics industry. We find that regarding explanatory determinants of CD-Time, external influence, such as advertising, to the early market is the most important explanatory variable.We examine the relationship between CD-Time and other early product life cycle phenomena: Takeoff, Saddle, and Rogers' size of adopter categories. We found relatively high correlations between these phenomena and CD-Time.The answer to the question “When does the majority become a majority?” is indeed “at 16%”! In a dual-market setting, the average time at which the main market outnumbers the early market is when 16% of the market has already adopted the product. In terms of time, in 75% of the cases the majority becomes a majority in 5 to 10 years.     

The amenity value of woodland in Great Britain: A comparison of economic estimates

Forests produce benefits over and above the revenue yielded from timber and other wood based products. Most important among these may be the recreational benefits for visitors, which have been examined in several studies. Total benefits for residents are perhaps more accurately captured in property values since, ceteris paribus, the price of a house reflects willingness to pay to live near an environmental amenity such as a forest to gain access to it, and also the amenity (non-use) value of the forest in so far as it creates a pleasant landscape. However, the total non-priced value of forestry is not the sum of HPM and ITCM benefit estimates. Recreational benefits will typically be less, and will be subsumed in the HPM estimates, since the hedonic price is partly induced by the value of recreational access.