The impact of limited liability on ownership and control: Irish banking, 1877–19141

Limited liability is regarded as the sine qua non of the modern company, enabling firms to raise capital from a broad spectrum of investors who have well‐diversified portfolios. This article uses the ownership records of an Irish bank, which converted to limited liability in 1883, to explore the impact of introducing limited liability upon ownership and control. We find that ownership becomes more dispersed amongst individuals from a broader social and geographical spectrum. However, there appears to be little impact on portfolio diversification. Furthermore, although limited liability appears to contribute to the rise of the professional director, the evidence suggests that managerial incentives may have been weakened.     

ASSESSING THE INTEGRATION OF ELECTRICITY MARKETS USING PRINCIPAL COMPONENT ANALYSIS: NETWORK AND MARKET STRUCTURE EFFECTS

Market power in electricity wholesale spot markets is more likely if there is market segmentation. We show that principal component analysis is a natural tool for the qualitative and quantitative assessment of the presence of local markets. We study whether the New Zealand market has been a national market or a set of local markets since its inception in 1996 and find that increased competition induced some segmentation that was eliminated by transmission enhancement and the introduction of generation downstream from the constrained circuits. Transmission investment policy that ensures one market will contribute to the efficiency of electricity, water, and related other markets. ( JEL D4, L1, L4)     

Modelling Aggregate Demand for Labour: A Critique of Lewis and MacDonald

In a recent contribution to this journal, Lewis and MacDonald (2002) argue that Australian literature on aggregate demand for labour is permeated with misunderstandings and, as a result, existing empirical work has been misinterpreted. The objective of the present note is to argue that the interpretation of existing empirical studies, to the extent that they are based on a CES production technology, is broadly correct. We demonstrate that Lewis and McDonald have no basis for estimating anything more than the partial elasticity of labour demand, holding output constant, because their single-equation estimation does not identify the elasticity of demand for output.     

The Impact of Traded Goods Prices on the New Zealand Economy*

Recent empirical work in Australia and New Zealand reveals a diversity of estimates of the dynamic response to changes in traded goods prices. Similarly, there is conflicting evidence as to whether relative purchasing power parity is a characteristic of models estimated from data. In this paper it is argued that a reduced form approach to empirical modelling is appropriate for New Zealand's particular circumstances. The resulting model is simulated in a novel way, with results that argue against the use of a simple traded/non-traded goods distinction in the analysis of foreign price impacts on New Zealand. Purchasing power parity is, however, consistent with the results.