home is where the hurt is an econometric analysis of injuries caused by spousal assault using data on injuries presenting at the emergency departments of participating hospitals in the australian state of queensland we examine the nature of injuries resulting from spousal assault and compare them to injuries from non spousal assault and accidental injuries we ask who are the persons most vulnerable to spousal assault are spousal assault injuries more or less severe than injuries from non spousal assault and accidental injuries do the recorded figures for assault injuries on women understate the true number of assault injuries and if so by how much

female labour supply and marital status decisions a life cycle model this paper studies the interdependence between and the determinants of life cycle marital status and labour force participation decisions of women a dynamic utility maximization model is presented and estimated using longitudinal data on women from the panel study of income dynamics the mle method employed involves solving a dynamic programming problem further a minimum distance estimator is proposed which allows for the incorporation of wage data in a computationally simple way the estimates are used to predict changes in the life cycle patterns of employment marriage and divorce due to differences in education race the female s earnings and her potential husband s earnings the estimation results indicate that the utility gains to marriage are decreasing in the female s wage rate and increasing in her potential husband s earnings while the opposite is found for gains to working ignoring the endogeneity of marital status decisions is shown to lead to an underestimation of own and husband s wage effects on female labour supply

model and heuristic algorithm of the joint replenishment problem with complete backordering and correlated demand abstract in practice demands for items are often correlated with each other because of cross selling effects traditional inventory models hold the assumption that demands are independent which may lead to the risk of misestimating the inventory cost of associated items this paper addresses a multi item inventory system where demands for some minor items are correlated with that for a major item because of the cross selling demand for minor items may either be raised by the sales of the major item or be pulled down by the unsatisfied demands for the major item thus a joint inventory policy considering correlations across items should be pursued considering general integer policy we propose a joint replenishment problem jrp model with complete backordering and correlated demand through the use of derivatives the model is transformed to minimize a cost function with respect to multiples of the major item s order cycle given that the optimal solution should offer a trade off between the ordering cost and the inventory holding cost of each item we develop a heuristic algorithm by adjusting the replenishment frequencies of minor items to solve the model the heuristic is tested by simulated numerical examples and shows satisfactory results

note periodic review s s policies for joint replenishment inventory systems this note deals with the joint replenishment problem with stochastic demands a new class of policies called ps s policy is proposed for this problem the proposed policy uses independent periodic review s s policies for each item results on test problems show that the proposed policy is superior to other classes of policies for the problem

leaving home as a self selection device we develop a model of intergeneratioal coresidence and transfers within the family in a setting of asymmetric information following an exchange motive altruistic parents receive services from their children who may make them financial gifts in return however parents do not know the privacyc ost to children of home sharing hence they make additional transfers in order to discipline their children and give them incentives to reveal their true privacy cost we show that only children who stay at the parental home receive an informational rent and that this rent is greaterf or recipients with a low privacy cost

economic development and the family structure from the pater familias to the nuclear family we provide a theory that is able to account for the observed comovement between the shift in intergenerational living arrangements from coresidence to non coresidence and economic development our theory is consistent with the diminution in the status of the elderly documented by some sociologists the results from our analysis show that when technical progress is fast enough the economy experiences a shift from stagnation to growth there is a transition from coresidence to non coresidence and the social status of the elderly tends to deteriorate

on the value of exposure and secrecy of defense system first mover advantage vs robustness abstract it is commonly accepted in the literature that when facing with a strategic terrorist the government can be better off by manipulating the terrorist s target selection with exposing her defense levels and thus moving first however the impact of terrorist s private information may significantly affect such government s first mover advantage which has not been extensively studied in the literature to explore the impact of asymmetry in terrorist s attributes between government and terrorist on defense equilibrium we propose a model in which the government chooses between disclosure sequential game and secrecy simultaneous game of her defense system our analysis shows that the government s first mover advantage in a sequential game is considerable only when both government and terrorist share relatively similar valuation of targets in contrast we interestingly find that the government no longer benefits from the first mover advantage by exposing her defense levels when the degree of divergence between government and terrorist valuation of targets is high this is due to the robustness of defense system under secrecy in the sense that all targets should be defended in equilibrium irrespective of how the terrorist valuation of targets is different to government we identify two phenomena that lead to this result first when the terrorist holds a significantly higher valuation of targets than the government s belief the government may waste her budget in a sequential game by over investing on the high valued targets second when the terrorist holds a significantly lower valuation of targets the government may incur a higher expected damage in a sequential game because of not defending the low valued targets finally we believe that this paper provides some novel insights to homeland security resource allocation problems

optimal lot size for a production inventory system with partial backlogging and mixture of dispatching policies abstract in this paper we study a production inventory model for a single product where shortages are partially backlogged both the backorder cost and the lost sale cost depend on a fixed cost and a cost proportional to the shortage time we assume a mixture between the dispatching policies known as lifo last in first out and fifo first in first out in the discipline of service to fill the backlogged demand by using a sequential optimization procedure we determine in a closed form the optimal production policies and the optimal profit for all the possible cases obtained from the developed model we show how this new model generalizes several inventory models proposed in the literature finally numerical results are presented to analyze the sensitivity of the optimal policies with respect to changes in some parameters of the system

analytical and managerial implications of integrating product substitutability in the joint pricing and procurement problem abstract this paper studies the analytical and managerial implications of product substitutability on the joint pricing and procurement decisions we consider a single period model with two products an existing product and an improved new product that can substitute the demand for the existing product in case of a shortage demand for each product follows a general distribution with an expected value that is a linear function of the price of the new product while the price of the existing product is determined by the market it is necessary to determine the new product s price and the procurement quantities of both products so as to maximize the profits we analytically show that the expected profit function is unimodal and in the existence of substitution the expected total profit is higher the optimal price and the safety stock of the new product are higher and the optimal safety stock of the existing product is less using these properties an efficient algorithm is developed we also provide a numerical analysis to demonstrate that considering substitution in advance could increase the profitability by 58 and the new product price by 5 while decreasing the total procurement quantity by 15

coordinated replenishments in inventory systems with correlated demands abstract demand correlation among different inventory items is common in real life multi item inventory systems however this phenomenon has not received sufficient attention in the existing inventory literature in this paper we construct a markovian model for a two item inventory system with correlated demands and coordinated replenishments we obtain an expression for the long run total cost per unit of time under the can order replenishment policy for the scenario with independent replenishments the explicit formula for the long run total cost per time unit can be derived which leads to analytical solutions for the optimal policies we then present numerical examples of the optimal can order policies and discuss some managerial insights regarding demand correlation and replenishment coordination our numerical results also suggest a possible heuristic method for obtaining can order replenishment policies for multi item systems

democratizing access to higher education in russia the consequences of the unified state exam reform this is the first paper that evaluates the effects of a reform requiring russian universities to make admission decisions based on the results of a national high school exam we show the reform led to a threefold increase in geographic mobility rates among high school graduates from small cities and towns to start college this is robust to different techniques samples and specifications the reform was also accompanied by increases in students expectations to attend university parental transfers and educational expenditures there is no evidence the reform affected parental labor supply divorce and employment outcomes of graduates who did not move

intergenerational household formation female labor supply and informal caregiving a bargaining approach children s provision of in kind services to their elderly parents informal caregiving represents an important form of economic transfers to the elderly in this paper we develop and estimate a joint model of informal caregiving and labor force participation decisions of adult daughters who have a frail elderly parent in a broader framework of intergenerational household formation parent and daughter agree to a nash bargaining rule as the solution to the household formation and intrahousehold decision making process however rather than severed relationships the threat point is given by a noncooperative equilibrium defined in terms of voluntary contributions toward a public good the parental well being maximum likelihood parameter estimates derived from the simultaneous multiequation endogenous switching model are generally consistent with expectations our results indicate that competing demands on daughters time reduce both coresidence and informal caregiving we also find that intergenerational coresidence is an important mode of assistance to elderly persons a simulation based on the estimated parameters suggests that public programs designed to meet the long term care needs of elderly persons by subsidizing formal home care services may have substantial effects on intergenerational living and care arrangement decisions

domestic violence and divorce law when divorce threats become credible the cost of divorce influences the bargaining position of spouses and thus their behavior within the marriage this study takes advantage of a major and unexpected reduction in divorce costs in spain to estimate the causal effects on domestic violence results suggest a 30 decline in spousal conflict as a consequence of the reform spousal violence is found to have decreased among couples who remained married after the modification in the law which suggests an important role for changes in bargaining within the marriage when divorce becomes a more credible cheaper option

recovering individual preferences for non market goods a collective travel cost model traditional recreation demand models do not make a distinction between a household and an individual as the reference decision making unit thus assuming that a family maximizes a single utility function even if the family consists of different individuals such models ignore the possibility of family members divergent preferences for non market goods this study proposes a novel approach the collective travel cost model ctcm to eliciting individual preferences for a non market good such as a recreation site by using revealed preference data this approach accounts for the intra household resource allocation and the role of each household member s preferences we show that the collective travel cost model can be applied to estimating a recreation demand model that yields individual welfare estimates appropriate for policy analysis of non market goods such as the willingness to pay to access a recreation site we find that how resources are distributed within the household reflects significant differences in welfare measures

deterministic eoq with partial backordering and correlated demand caused by cross selling abstract there has been much work regarding the deterministic eoq with partial backordering the majority of these studies assume no correlation in sales so independent demands across items is applied in the models however it is generally recognized that cross selling effects between items often appear in real contexts thus incorporating such effects in the inventory model in the form of correlated demands makes it of more practical relevance in this paper the authors address a two item inventory system where the demand of a minor item is correlated to that of a major item because of cross selling we firstly present a two item eoq model with identical order cycles where the unmet demand of the major item can be partially backordered with lost sales whereas the demand of the minor item must be met without stockouts this model is further extended to fit a more practical case where the order cycle of the major item is an integer multiple of that of the minor item the optimal solutions of the two models as well as the inventory decision procedures are also developed comparative analysis on these two eoq models has been drawn in the computational study which presents some insights into the parameter effect on the optimal inventory policy

moving back home insurance against labor market risk this paper demonstrates that the option to move in and out of the parental home is a valuable insurance channel against labor market risk which facilitates the pursuit of jobs with the potential for high earnings growth using monthly panel data i document an empirical relationship among coresidence individual labor market events and subsequent earnings growth i estimate the parameters of a dynamic game between youths and parents to show that the option to live at home can account for features of aggregate data for low skilled young workers small consumption responses to shocks high labor elasticities and low savings rates

monetary transfers from children and the labour supply of elderly parents evidence from vietnam in the absence of a broad based pension scheme the elderly in developing countries may rely on monetary transfers made by their children and on their own labour supply this article examines whether monetary transfers from children help to reduce elderly parents need to work taking the possible endogeneity of children s transfers in the parents labour supply into account and using maximum likelihood methods and vietnamese data we find that monetary transfers help the elderly cope with risks associated with old age or illness at the same time however monetary transfers are not sufficient to fully substitute for parents labour supply

extended families and child well being studies of household behavior have established the distribution of resources among household members predicts spending and savings patterns however there is a paucity of evidence on the relationship between the well being of individual family members and the distribution of resources within an extended family including non co resident family members given the central role the family plays in many models of economic behavior this is an important gap in the literature using rich longitudinal survey data from the indonesia family life survey ifls evidence is presented on the relationship between three measures of health and education related human capital of children and the distribution of resources among extended family members ifls is ideally suited for this research since the survey collects detailed information about income and wealth from both coresident and non co resident family members the empirical model is founded on a natural extension of the collective model of household decision making chiappori 1988 1992 to the extended family the model is particularly appealing in this context because it places few restrictions on preferences of individual family members and does not specify a specific bargaining mechanism that underlies negotiations the collective model yields empirical tests of whether the behavior of family members is pareto efficient a special case of the model allows all family members to be completely altruistic which is observationally equivalent to a unitary model of family behavior that special case is rejected by the data however the restrictions of the efficient model are not rejected indicating that non co resident family members are able to co ordinate allocation decisions with respect to child human capital investments in such a way as to make no family member better off without another member being worse off

the deterministic eoq with partial backordering a new approach previous authors have shown that if demand that cannot be filled from stock is partially backordered then using the full backordering model or assuming that all stockouts will result in lost sales can lead to substantial increases in cost relative to using a model that specifically recognizes the percentage of the stockouts that will be backordered the models that these authors developed resulted in procedures or equations that are relatively difficult to use in this paper we take a different approach to modeling the deterministic eoq with partial backordering that results in equations that are more like the comparable equations for the basic eoq and its full backordering extension

modeling secrecy and deception in a multiple period attacker defender signaling game abstract in this paper we apply game theory to model strategies of secrecy and deception in a multiple period attacker defender resource allocation and signaling game with incomplete information at each period we allow one of the three possible types of defender signals truthful disclosure secrecy and deception we also allow two types of information updating the attacker updates his knowledge about the defender type after observing the defender s signals and also after observing the result of a contest if one occurs in any given time period our multiple period model provides insights into the balance between capital and expense for defensive investments and the effects of defender private information such as defense effectiveness target valuations and costs and also shows that defenders can achieve more cost effective security through secrecy and deception possibly lasting more than one period in a multiple period game this paper helps to fill a significant gap in the literature in particular to our knowledge no past work has studied defender secrecy and deception in a multiple period game moreover we believe that the solution approach developed and applied in this paper would prove useful in other types of multiple period games

a game theoretic model for resource allocation among countermeasures with multiple attributes abstract we study a strategic two player sequential game between an attacker and defender the defender must allocate resources amongst possible countermeasures and across possible targets the attacker then chooses a type of threat and a target to attack this paper proposes a model for determining optimal resource allocation by combining game theory with a simple multi attribute utility model given a set of possible attributes representing goals or preferences we allow each player to choose a weight for each attribute where the subset of attributes with nonzero weights represents that player s preferences every countermeasure is given a score for its effectiveness at both mitigating the effects of an attack in terms of each attribute and reducing the probability of the success of an attack furthermore the consequences of each possible attack are scored in terms of each attribute the multi attribute utility aspect of this model uses these scores along with the players weights to form the basis of the utility or disutility for each player we find that i the zero sum game where the attacker s and defender s weights are identical results in the worst losses for the defender ii in general cases the defender s equilibrium strategy has the result of making the attacker indifferent between multiple attacks and iii the use of target independent countermeasures i e countermeasures which operate at national levels as opposed to operating at differing levels for each target can increase the cost effectiveness of countermeasures

the determinants of female headship in jamaica results from a structural model much of the existing research on female headship in developing countries presumes that female headed households fhhs are the result of a breakdown in family relations such as abandonment out of wedlock pregnancy divorce or widowhood in other words the existence of fhhs is seen to be a constraint imposed on women by social or cultural forces however in jamaica fhhs represent 42 of all households this extremely high incidence one of the highest in the world indicates that the conventional assumptions about fhhs might not apply in jamaica indeed the sociological and anthropological literature suggests that jamaican women actively choose to live and raise children on their own and that fhhs are a response to local social and economic conditions this article departs from the previous research on headship by treating the formation of fhhs as endogenous and investigating the extent to which the rate of fhhs can be explained by economic forces recent game theory approaches to analyzing household behavior provide a convenient starting point for the household formation model developed here bargaining models assume that an individual s willingness to form a household with a partner depends on the outside opportunities available to that individual in essence an individual makes a comparison between the utility attainable inside and outside a union and chooses the living arrangement that gives the highest welfare following the bargaining framework the approach in this article is to explicitly allow alternative prospects threat points to influence a woman s choice of residence the method is to estimate each woman s welfare in the counterfactual status and compare it with her observed level of well being a test of the economic content of the household formation decision is to see whether the predicted welfare level in the counterfactual status influences a woman s headship choice most of the empirical work using the bargaining framework tests

price policy poverty and power within rural west african households abstract this paper explores the impact of agricultural price policy on poverty in west africa a region in which prices are an important tool for raising rural household incomes a game theoretic collective model of household income generation and resource allocation is developed that incorporates three features typical of west african rural households preference heterogeneity among women and men individual resource control and power mediated bargaining over resource control in the face of changes in households economic environments to explore price effects the model is used to simulate the income impacts of large increases in cotton prices accompanying fast paced agricultural liberalisation in burkina faso in the 1980s the paper shows that where resources are controlled individually by household members rather than pooled pareto efficiency in income generation does not hold the impact of agricultural price policy on poverty is mediated by bargaining over resource control within households bo

labour supply welfare rankings and the measurement of inequality abstract this paper presents an analysis of inequality using utility based measures of welfare derived from different approaches to modelling household labour supplies the almost ideal demand system specification of preferences is selected for the estimation of a neoclassical household model and of individual decision models which incorporate different assumptions concerning the intra household distribution of income using the rosen 1976 tax perception methodology the study also explores the implications of a model which does not constrain time at home to leisure welfare rankings and inequality measures defined on equivalent income are compared for each type of model the analysis uses australian unit record data on 3 352 households drawn from the australian bureau of statistics 1981 82 income and housing sample survey file the results indicate the sensitivity of welfare orderings and inequality measures to the choice of decision model and to the specification of lump sum transfers between family members a comparative study of equivalent incomes and selected money income variables also illustrates the limitations of observed household and individual incomes as welfare indicators for the analysis of inequality and for policy design

the multi item newsvendor model with cross selling and the solution when demand is jointly normally distributed abstract products are often demanded in tandem because of the cross selling effect the demand for an item can increase if sales of its cross selling associated items are achieved or decrease when the associated items are out of stock resulting in lost sales therefore a joint inventory policy should be pursued in a cross selling system this paper introduces customer driven cross selling into centralized and competitive newsvendor nv models by representing an item s effective demand as a function of other items order quantities we derive first order optimality conditions for the centralized model in addition to pure strategy nash equilibrium conditions and uniqueness conditions of the equilibria for the competitive model we further develop gradient based gb and iteration based ib algorithms to solve the centralized and competitive models respectively a computational study verifies the effectiveness of the proposed algorithms the computational results show that a larger cross selling effect leads to a larger order quantity in a centralized nv model but a smaller order quantity in a competitive nv model and a larger positive correlation between items demands leads to higher profits with smaller order quantities in both models moreover nvs will order more items if the demand variance is greater however resulting in lower profits in a competitive situation one will prefer smaller order quantities than in a centralized decision situation

periodic versus can order policies for coordinated multi item inventory systems the coordinated multi item inventory problem refers to the problem of managing inventories where there is a joint fixed cost for replenishing plus an item by item fixed cost for each item included in the replenishment order given that the optimal solution is likely to be too complex attention has focused on fixed heuristics and in particular can order or s c s policies this paper makes two contributions first a new lower bound on the cost of the optimal policy is proposed in order that the performance of heuristics may be measured second motivated by the lower bound a simple periodic policy is proposed and shown to be an improvement over can order policies for many data sets

intergenerational support and the life cycle incomes of young men and their parents human capital investments coresidence and intergenerational financial transfers this article examines the resource allocations of parents in the form of both shared residence with and financial transfers to their young adult sons based on an overlapping generations model incorporating a game between parents and adult children estimates of the determinants of such transfers are obtained from the kinship linked cohorts of the national longitudinal surveys the estimates suggest that both types of parental assistance are as important as governmental transfers in supporting young men and are responsive to the current and anticipated earnings of their offspring suggesting that young men cannot adequately smooth their consumption without parental help

how many parts to make at once reprinted from factory the magazine of management volume 10 number 2 february 1913 pp 135 136 152 interest on capital tied up in wages material and overhead sets a maximum limit to the quantity of parts which can be profitably manufactured at one time set up costs on the job fix the minimum experience has shown one manager a way to determine the economical size of lots

why do most italian youths live with their parents intergenerational transfers and household structure more than 80 of italian men aged 18 30 live with their parents we argue that one contributing factor to this remarkably high rate of cohabitation is parents tastes for co residence in order to investigate the role of parental preferences we estimate the effect of exogenous changes in parental income on rates of cohabitation in italy using shiw micro data from 1989 to 2000 the key econometric issue is the potential endogeneity of parental income in order to identify a source of exogenous variation in parental income we use changes in fathers retirement age induced by the 1992 reform of the italian social security system as an instrumental variable for parental income by raising retirement age this reform forced some fathers to remain in the labour market longer than they would have otherwise therefore raising their disposable income we use a two sample instrumental variable tsiv strategy our tsiv estimates indicate that a rise in parents income significantly raises the children s propensity to live at home a 10 increase in annual parental income results in approximately a 10 rise in the proportion of boys living with their parents although we cannot definitely rule out alternative interpretations these results are consistent with our hypothesis that cohabitation is a normal good for italian parents

the choice of insurance in the labor market employment protection and unemployment benefits are considered the most prominent insurance devices for workers to protect themselves against the risk of unemployment it occurs that societies either choose a high level of employment protection relative to unemployment benefits or vice versa this paper explains where countries locate on this trade off it is argued that higher coverage of voters out of the labor force with intra household transfers yields a politico economic equilibrium with relatively high employment protection and relatively low unemployment benefits cross country data and survey data on voters preferences are presented that corroborate the outcomes of the model

prices parents and young people s household formation an economic theory of young people s decision to live apart from parents is presented and used to structure econometric analyses of the processes of leaving the parental home and returning to it which employ data from the british household panel survey for the first half of the 1990s the econometric estimates support the predictions of the theory in particular tighter housing markets as indicated by higher regional relative house prices significantly retard home leaving especially the formation of partnerships and encourage returns to the parental home young people with larger current income are more likely to leave but less likely to return to the parental home

preference heterogeneity power and intrahousehold decision making in rural malaysia abstract this paper examines conjugal household responsibilities roles preference heterogeneity and intrahousehold power relations in rural malay families its three major contributions are to provide an effective initial indicator of separate spheres within the family develop and implement a method for measuring the extent of conjugal preference heterogeneity and illustrate the value of combining this direct measure of preference heterogeneity with a measure of power in estimating household expenditure patterns for three major items food schooling and housing improvement these three measurement innovations applied to the rural malaysia context demonstrate the potential for more direct efforts to model and measure intrahousehold decisions

marital division of labor with risk of divorce the role of voice enforcement of contracts it is assumed that emotional ties can be relied on to enforce implicit marital contracts by voice therefore in the present model divorce has economic consequences not only because the economies of scale from living together are destroyed but also because the scope for such voice enforcement is weakened moreover perhaps surprisingly i find that it is ambiguous how an increase in the probability of divorce influences predivorce allocation of time even when preferences are assumed to be homothetic

gender of children bargaining power and intrahousehold resource allocation in china abstract based on the prevalent son preference in china this paper proposes a new measure of relative bargaining power within the household using data from china health and nutrition survey we show that a woman with a first born son has a 3 9 percentage points greater role in household decision making than a woman with a first born daughter having a first born son improves the mother s nutrition intakes and reduces her likelihood of being underweight while thinking of these impacts as being channeled through intrahousehold bargaining power we cannot fully rule out other possible direct effects of a first born son on the outcomes

an extension of partial backordering eoq with correlated demand caused by cross selling considering multiple minor items abstract zhang et al 2011 proposed the partial backordering eoq with correlated demand caused by cross selling where a portion of the sales of a minor item is associated with those of a major item in this paper we extend their model to make it more applicable to dealing with the inventory replenishment problem for multiple associated items we formulate the model as a mixed integer nonlinear programming minlp problem and develop a global optimum search procedure with the fill rate given we further employ a one dimensional search on the fill rate to obtain the minimum total inventory cost within a predetermined precision which enjoys polynomial computational complexity

motives for private income transfers private income transfers are becoming increasingly recognized as a key aspect of the u s economy the majority of private income transfers occur inter vivos i e between living persons but very little is known about this type of transfer behavior this paper tests alternative hypotheses concerning motivation for inter vivos transfers two motives are considered altruism and exchange evidence presented here casts doubt on the altruistic model of transfer behavior observed patterns for inter vivos transfers are more consistent with exchange related motives this finding has important implications for the effects of public transfer programs on the distribution of economic well being

an equilibrium model of the supply chain network under multi attribute behaviors analysis abstract this paper studies a supply chain network scn equilibrium model considering decision makers multi attribute behaviors from the perspective of behavioral finance in this paper an equilibrium model of an uncertain snc is constructed in which retailers choose their decisions according to their risk averse behavior loss averse behavior and regret averse behavior by using different weights to represent retailers attitudes to these three behaviors the retailers multi attribute utility functions are developed the equilibrium conditions of the manufacturers the retailers together with the network are established by the finite dimensional variational inequality formulation three numerical examples are solved in the first numerical example we illustrate the effect of each of these three behaviors on the equilibrium decisions the profits and the utilities of the decision makers in the other two numerical examples we explore the effects of changes in attitudes to these three behaviors on the equilibrium decisions profits and utilities of the decision makers the numerical results show that the equilibrium decisions are affected by each of these three behaviors very much moreover they are sensitive to the changes in attitudes to these behaviors

intra family distribution of paid work time this article analyses the intra family distribution of paid work time in five european countries france germany italy spain and the uk to that end we formulate a collective model which allows us to characterize the efficient labour supply decisions of each spouse this two equation model is then simultaneously estimated by using national panel data drawn from the european community household panel echp 1994 2001 empirical results clearly show that in all sample countries the labour supply of wives is affected by own wages household and own nonlabour incomes and the number of children whereas evidence for husbands differs across countries

the joint determination of household membership and market work the case of young men except in special cases market work and household membership are jointly chosen a nash bargaining model of family behavior is used to specify stochastic structural relationships two indirect utility functions and a market and a reservation wage function that jointly determine work consumption and household membership the maximum likelihood estimates of the implied trinomial probit model differ sharply from those obtained when either market work or household membership is taken as exogenous this application to white male youths from the national longitudinal surveys shows the insurance function of families parents insure their sons against poor market opportunities

the economic determinants of young people s household formation the paper derives predictions about the impact of the price of housing young adults income and parental income on the probability that a young adult in the united kingdom lives apart from his her parents it shows that the predicted effect of the price of housing is intimately related to the price elasticity of housing demand it uses longitudinal data on a cohort of britons born in 1958 surveyed in the national child development study to estimate dynamic models of first departure from the parental home and particularly to estimate the impact of housing price on the timing and destination of first departure excerpt

the empirical content of nash bargained household behavior in households whose allocation decisions can be represented as nash bargained household decisions extrahousehold environmental parameters eeps serve as pure shifters of the threat points the comparative statics of changes in demands due to changes in these eeps are given these are incorporated into a comprehensive statement of the empirical content of nash bargained household behavior including a nash generalization of barten s 1966 fundamental matrix equation of the theory of consumer demand estimation and data requirements are discussed along with nested testing of the following structure the neoclassical model is nested in the nash bargained model which in turn is nested in an unrestricted model of household demands emphasized throughout is the enriched menu of explanatory variables for demand analysis provided by the nash model as well as the model s ability to jointly analyze i household formation and ii intrahousehold allocation decisions

parent child bargaining parental transfers and the post secondary education decision schooling decisions are often modelled within a unitary preference framework in this article an alternative to the unitary preference model is proposed in which parents and child have conflicting preferences over parental transfers and the level of post secondary schooling and participate in cooperative bargaining as a means of resolving this conflict comparisons of the implications of the bargaining and unitary preference models motivate tests of parental altruism and income pooling to test these hypotheses reduced form transfer and schooling equations are estimated using data from the high school and beyond surveys the evidence suggests that the unitary preference model be rejected

search method use by unemployed youth this article presents a search model which shows that search method choices should be related to their costs and expected productivities as well as to nonwage income and wage offer distributions the empirical evidence then shows that the most frequently used search methods i e friends and relatives and direct applications without referral are also the most productive in generating offers and acceptances the number of methods used is affected by factors that presumably reflect opportunities as well as income sources and needs specific methods are chosen in a manner that generates positive average effects on outcomes for those using them

canadian contributions to family economics canadian scholars have made substantial contributions to the relatively new field of family economics these include new models of how men and women match in marriage markets and of how decisions are made in multi person households several were early contributors to the literature on married women s labour supply and labour supply in a family context and helped to develop empirical methods in this area a particular focus has been on the impacts of policy relevant parameters such childcare costs on family labour supply and child well being new work on child development the impact of early life conditions and the processes of intergenerational transmission also highlight the importance of family context in determining economic well being

a survey of deterministic models for the eoq and epq with partial backordering models for the basic deterministic eoq or epq problem with partial backordering or backlogging make all the assumptions of the classic eoq or epq model with full backordering except that only a fraction of the demand during the stockout period is backordered in this survey we review deterministic models that have been developed over the past 40 years that address the basic models and extensions that add other considerations such as pricing perishable or deteriorating inventory time varying or stock dependent demand quantity discounts or multiple warehouses

an economic order quantity model with partial backordering and a special sale price abstract a constant unit purchase cost is one of the main assumptions in the classic economic order quantity model in practice suppliers sometimes offer special sale prices to stimulate sales or decrease inventories of certain items in this paper we develop an eoq model with a special sale price and partial backordering we prove the convexity of the cost reduction function if a special order is placed at the special sale price a solution method is proposed and numerical examples are presented

women s participation in local organizations conditions and constraints abstract civic organizations have a capacity to contribute to economic growth and an equitable distribution of welfare by reducing information asymmetries and transaction costs while donors increasingly recognize that group based projects are a means to advocate organizational capacities of target groups it is not clear whether group based organizations always increase efficiency and equity this article analyses the determinants of participation in local development groups ldgs using data from two projects funded by undp in kashmir and gtz in chad a major result of the empirical analysis is the identification of a middle class effect of participation the exclusion of the majority of the poor can be explained by high opportunity costs to join the group especially for income earning women in addition it can be shown that an existing social network is a pre condition for participation finally the assumption has been confirmed that bargaining power of the members is important for their decision to participate in groups

do two earner households base their choice of residential location on both incomes this article focuses on the role of individual incomes in the residential location decisions of two earner households conventional studies often treat households as a black box and describe them by a single utility function the article raises the question is the household utility paradigm an adequate framework for understanding the location decisions of two earner households it tests an implication of the household utility paradigm the income pooling hypothesis for location decisions the results provide evidence for rejecting the hypothesis among childless families but fail to provide evidence for rejecting it when children are present the results raise the need to address intrahousehold dynamics in modelling location decisions