This paper presents the partial analytical solution to a model of periodic consumption that incorporates imperfect capital markets and uncertainty. Our model assumes that consumption decisions occur more frequently than income receipt. We show that the week specific consumption functions can be ordered. At low levels of wealth these functions exhibit a “ushaped” pattern between income receipts....

The economics of happiness is applied to further the understanding of important consumption decisions in which limited willpower is often argued to lead to suboptimal choices. Based on individuals’ judgments of the quality of their lives, it is, in principle, possible to derive whether some observed behavior is suboptimal and is therefore reducing a person’s welfare. We discuss the key characte...

In the cross-section of households, the portfolio share rises in wealth and has a non-decreasing age profile. The standard life-cycle model with homothetic utility and non-tradable labor income has the counterfactual implication that the portfolio share falls in both wealth and age. We develop a life-cycle model in which households have nonhomothetic utility over two types of consumption goods,...

Using non-parametric weak separability tests that are extended to allow for measurement errors in the data, a broad group of UK monetary assets is found to be weakly separable from consumer goods and leisure over the larger part of the nineties. Financial innovations have made assets with substantial interest rate risk (e.g. unit trusts) more liquid and recent developments in monetary aggregati...

The Measurement of Child Costs: Evidence from Ireland We apply an extension of the Rothbarth approach to estimate the share of household resources accruing to children (i.e., the cost of children) in Ireland. The method also allows us to identify the economies of scale in the household and indifference scales in Lewbel (2003)’s sense. A practical aspect of the present approach is that it does n...

Integrated assessment models lack a microeconomic foundation in modelling environmental damages to the economy. To overcome this, damage coefficients are incorporated in standard microeconomic models. Firms and consumers take both damages and prices as given. Demand, supply, profit and expenditure functions under damage coefficients are derived that allow easy implementation in applied economic...

The share of household resources devoted to children is hard to identify, because consumption is measured at the household level, and goods can be shared. Using semiparametric restrictions on individual preferences within a collective model, we identify how total household resources are divided up among household members, by observing how each family member’s expenditures on a single private go...

Abstract The aim was to explore potential differences on ghrelin plasm concentrations between efficient and inefficient lambs within a transient surge of secretion just before scheduled meal feeding. Six high- (256±19 g) six low-RFI (-242±19 Hampshire entire male (Age=168±2 d BW=63±5 kg) were taken out 25 individuals in 56-d GrowSafe SystemsÒ feeding trial. After 10-d adaptation once-daily ad-l...