Testing the intertemporal labor supply model: are jobs important?

The neoclassical life-cycle labor supply model assumes that hours of work are determined by labor supply choices alone and does not include a role for employers or job distinctions. An alternative model in which employers have an interest in employee hours and changing jobs is costly may reconcile weak and conflicting evidence regarding the neoclassical model. An important implication of such an alternative is that individuals may face hours constraints on a job and thus can choose hours freely only between jobs. This paper tests several implications of the neoclassical model against this alternative model of hours determination. Using a unique panel of individuals and jobs constructed using data on women from the 1988–1992 Panel Study of Income Dynamics, I compare hours variances and labor supply elasticities measured within and between jobs. Results provide some evidence against the neoclassical model and suggest that ignoring the role of employers in determining hours of work can lead to downward bias in estimates of labor supply elasticities.     

The Role,Use and Activation of Strong and Weak Network Ties: A Qualitative Analysis*

abstract A characteristic of studies seeking to explain the structure and operation of networks is the use of Granovetter's strong and weak tie hypothesis. Whilst this hypothesis has become an established paradigm, questions and disagreements arise over its applicability at demonstrating the real use and value of each tie. This study extends the work of Granovetter. Using a qualitative ethnographic approach to explore in‐depth the networking activities of fourteen respondents, it aims to enhance understanding about the role of ties, how they are used and activated for business activity. Findings demonstrate that it is strong ties that are instrumental for business activity and used extensively to provide knowledge and information but also to maintain, extend and enhance business and personal reputations. Unless activities require their reactivation and manifestation, strong ties remain latent and dormant within the network. Strong ties also provide the mechanism to invoke ‘weak’ ties, represented by nodes operating in a wider social context.     

Punishment in a Regulatory Setting: Experimental Evidence from the VCM

To analyze the effectiveness of punishment in inducing regulatory compliance, we modify a standard public goods experiment to include a financial penalty for free riding. The design allows us to vary both punishment probability and severity. We introduce the punishment mechanism in both a one-time and a repeated treatment and find that compliance (contributing to the public good) is increasing in expected punishment cost in both treatments. We also find that punishment severity has a larger effect on behavior than punishment probability. In the repeated treatment, we find that past punishment has a negative rather than positive effect on compliance.     

Basic needs fulfillment and economic growth: A simultaneous model

The relationship between basic needs fulfillment and productivity change is examined using a growth model which is explicitly simultaneous in national output and generalized measures of health, nutrition, and education. Consistent and relatively efficient parameter estimates are obtained through the application of three-stage least squares, using data from a large sample of poor countries in Africa, Asia, and Southern America. The results give support to the hypothesis that changes in basic welfare are strong contributors to labor productivity change, and conversely. In addition, they suggest substantial differences in the pattern of simultaneous interaction at different income and welfare levels.     

Reviews

DEPRIVATION IN THE OUTER CITY.

Barke, M. and Turnbull, G. 1992: Meadowell: The Biography of an “Estate with Problems”. Aldershot: Avebury, £32.00 cloth.

CHANGING BOUNDARIES OF RACE.

Jones, Trevor. 1993: Britain's Ethnic Minorities. PSI,

£15.

ENTERPRISE IN ARCADIA?

Curran, J. and Storey, D. (eds), 1993: Small Firms in Urban and Rural Locations, London and New York: Routledge, £40, hardback.

MAKING CONNECTIONS.

Turok, I. 1993: Loose connections? Foreign investment and local linkages in “Silicon Glen” Strathclyde Papers on Planning, 23. Centre for Planning, University of Strathclyde, 50 Richmond Street, Glasgow, G1 1XN. £4.00, paper.

COWLEY: THE END OF THE LINE?

Hayter, T. and Harvey, D. (eds) 1993: The Factory and the City: the Story of the Cowley Automobile Works in Oxford. London: Mansell, £40, hardback.

UPDATING SECTOR APPROACHES.

Geddes, M. and Benington, J. (eds) 1992: Restructuring the Local Economy. Harlow: Longman, £22.00, paper.

BORN AGAIN LOCAL GOVERNMENT?

Hodge, M. and Thompson, W. 1994: Beyond the Town Hall: Reinventing Local Government. Fabian Pamphlet, £3.90.     

China＇s Trade Acceleration and the Deepening of an East Asian Regional Production Network

China＇s recent surge in trade has been associated with its deepening but contrasting trade relations with its two groups of key trading partners. On the one hand, China＇ s trade surpluses with the USA and the EU have risen rapidly, reaching US$144bn and US$91bn in 2006, respectively. On the other hand, China is importing heavily from its Asian neighbors. This diverging pattern of trade relations between China and its main trading partners reflects the continuous expansion and intensification of a complex cross-border production network in Asia, particularly for consumer electronics. In the process of deepening manufacturing sharing, China serves as an essential export platform for firms headquartered in the more advanced economies. These firms export intermediate goods from the relatively more advanced Asian economies to their affiliates in China where these inputs are assembled and then shipped to key export markets, including primarily the USA and the EU. One apparent outcome of the growing processing and assembly trade is the increased interdependency among Asian economies, which are now more dependent on each other than ever. It has also led to substantial structural changes and technological upgrading in China＇ s traded goods.     

Sources of stagnation in sub-Saharan Africa

This paper investigates the sources of economic stagnation in sub-Saharan Africa during the 1970s. Several policy variables are considered, as well as a set of ‘environmental’ variables which include climate, violence, export prices and other exogenous factors. The paper uses statistical analysis in an attempt to identify the relative importance of the policy variables and the ‘environmental’ variables, taken as groups. It also seeks to identify particular policy variables which seem to have been most significant in determining growth outcomes.The technique employed for investigation is reduced-form econometric estimation. In a preliminary analysis, the impact of the international trade environment on average economic performance in Africa during the period since independence is investigated. The results suggest an extremely close relationship between movements in export prices and average performance throughout the 20-year period.A second econometric exercise investigates the joint impacts of environmental and policy variables on growth in a cross-section of African states since 1970. The spirit of the approach is exploratory, and a relatively large number of variables are constructed and tested through multivariate analysis. A primary finding is that the environmental variables seem to have had more impact on growth as a group than the policy variables. This finding must be qualified, however, by the continuing lack of some important policy variables. Agricultural price data have not yet become available in sufficient quantity for cross-section analysis, nor have several important human resource variables and indices of the use of resources in the public domain.Among the policy variables which have been used for the analysis, those identified with retrenchment during periods of declining commodity prices seem most significant. Primary among these are the real effective exchange rate and some measures of effectiveness in foreign exchange reallocation during periods when imports must contract severely.In the final section of the paper, the cross-section results are used for a counterfactual analysis of the growth experiences of individual African states. Measures of growth opportunity cost are constructed which suggest the degree to which errors in management and uncontrollable circumstances have held states below their potential growth paths. The results suggest that some ‘success stories’ may owe much to good luck, while some ‘failures’ may well be due less to bad management than to adverse circumstances.