the effect of supply uncertainty in price setting newsvendor models abstract we consider a price setting newsvendor model in which a firm needs to make joint inventory and pricing decisions before the selling season the supply process is uncertain such that the received quantity is the product of the order quantity and a random yield rate two cost structures are investigated the in house production case in which the firm pays for the input quantity and the procurement case in which the firm pays for the quantity received only our objective is to investigate the effect of yield randomness on optimal decisions and expected profit by using the theory of stochastic comparisons we find that under both cost structures a less variable yield rate leads to a lower optimal price and a higher expected profit moreover we show that in the in house production case a stochastically larger yield rate also results in a lower optimal price and a higher profit but this is not true in the procurement case examples show that the effect of supply uncertainty on optimal order quantity is not universal

a qualitative study of managerial challenges facing small business geographic expansion abstract geographic expansion is a common growth strategy used by small entrepreneurial firms yet despite the importance of geographic expansion as a growth strategy it is a neglected area of small business research to date research in the area of small business growth has focused on broad issues such as the common obstacles to firm growth and the relationship between firm growth and firm profitability whereas this literature is suggestive it does not provide specific prescriptive advice to small business managers pursuing geographic expansion as a growth strategy as a first step in generating prescriptive advice in this area this study examined the managerial challenges that faced one small firm during the early stages of its efforts to expand geographically the subject organization referred to as the local advertising company lac operated in a single location from 1968 to 1990 as a means to initiate firm growth the owners of the company opened eight new locations in 1991 and eight more in 1992 however problems ensued this study used a qualitative research methodology to conduct an assessment of the managerial challenges facing the lac during its geographic expansion effort seventeen key employees of lac were interviewed for the study the qualitative case study methodology used provided an opportunity to gather in depth information from informants regarding their individual assessment of the managerial challenges encountered by lac during its geographic expansion collectively the respondents identified a number of specific management issues that became problematic during lac s geographic expansion effort through a content analysis technique these issues were organized into 15 thematic categories including training recruitment and selection the relationship between the field staff and the original owners and 12 others each of these categories represents the separate managerial challenges faced by the company during its geographic expansion the study provides a descriptive analysis of each of the 15 categories of managerial challenges that emerged the research results suggest that the successful management of a geographic expansion growth strategy requires managers to deal with a unique set of issues for example the training of new employees may become problematic when the most experienced personnel in the firm reside in the home office and the new trainees are located in widely dispersed geographic locations in addition the results of the study provide an extension to both practical and theoretical knowledge in three distinct areas planning for growth managing growth and the reasons for growth first the results of the study support the importance of planning for growth but suggest that planning must be complemented by learning and a willingness to evolve one s plan as growth progresses in terms of the management of growth the case shows that running a small business and growing a small business do not include the same skill set the owners of lac had been quite successful managing their single location for 22 years however this ability to run a business did not complement the need to anticipate start up problems in new remote sites which is inherent in a strategy of geographic expansion in addition the case demonstrated that the management of growth requires a cognizance on the part of the original owners of a firm to delegate control finally with regard to the reasons for growth researchers generally characterize firm growth as being motivated by either economic e g economies of scale or emotional reasons e g employing family members the owners of lac initiated firm growth for the purpose of wealth creation to fund their retirements this illustrates that firm growth can be motivated by a combination of both economic e g wealth creation and personal e g retirement security reasons

vertical control of price and inventory this paper offers a simple approach to the theory of decentralizing inventory and pricing decisions along a supply chain we consider an upstream manufacturer selling to two outlets which compete as differentiated duopolists and face uncertain demand demand spillovers between the outlets arise in the event of stockouts the price mechanism in which each outlet pays a two part price and chooses price and inventory virtually never coordinates incentives efficiently contracts that can elicit first best decisions include resale price floors or buy back policies retailer held options to sell inventory back to the manufacturers

dynamic replenishment from two sources with different yields costs and leadtimes abstract we study a single item periodic review inventory system with two sources of supply in house production and outsourcing the two sources differ in yields costs and leadtimes demands in consecutive periods are independent random variables and stockout is fully backlogged our problem is to characterize the optimal dynamic policy that simultaneously determines the in house production quantity and the outsourcing quantity for each period to minimize the total discounted cost we show that the optimal policy for in house production can be characterized by a threshold and the production quantity is decreasing in the starting inventory the optimal outsourcing policy however is more complex and a threshold type policy is only optimal under a more restrictive assumption about the yields comparative statics about the effects of yield uncertainty outsourcing on the optimal policy and cost performance are discussed

pricing and the news vendor problem a review with extensions in the newsvendor problem a decision maker facing random demand for a perishable product decides how much of it to stock for a single selling period this simple problem with its intuitively appealing solution is a crucial building block of stochastic inventory theory which comprises a vast literature focusing on operational efficiency typically in this literature market parameters such as demand and selling price are exogenous however incorporating these factors into the mode l can provide an excellent vehicle for examining how operational problems interact with marketing issues to influence decision making at the firm level in this paper we examine an extension of the newsvendor problem in which stocking quantity and selling price are set simultaneously we provide a comprehensive review that synthesizes existing results for the single period problem and develop additional results to enrich the existing knowledge base we also review and develop insight into a dynamic inventory extension of this problem and motivate the applicability of such models

stochastic comparisons in production yield management manufacturing firms routinely commit resources to increase yield rates through product and process improvement initiatives champions of such yield improvement projects may assume that stochastically larger yield rates are beneficial in this note we show that this need not hold even when the contingent production lot sizes are chosen optimally we employ stochastic comparison techniques to show that a yield rate that is smaller in the convex order ensures higher expected profit and we provide a distribution free bound on the size of increase in expected profit we also identify properties of yield rate distributions that do make stochastically larger yield rates beneficial

understanding the family gap in pay for women with children as the gender gap in pay between women and men has been narrowing the family gap in pay between mothers and nonmothers has been widening one reason may be the institutional structure in the united states which has emphasized equal pay and opportunity policies but not family policies in contrast to other countries that have implemented both the authors now have evidence on the links between one such family policy and women s pay recent research suggests that maternity leave coverage by raising women s retention after childbirth also raises women s levels of work experience job tenure and pay

joint inventory replenishment and pricing control for systems with uncertain yield and demand we study the joint inventory replenishment and pricing problem for production systems with random demand and yield more specifically we analyze the following single item periodic review model demands in consecutive periods are independent random variables and their distributions are price sensitive the production yield is uncertain so that the quantity received from a replenishment is a random variable whose distribution depends on the production quantity stockouts are fully backlogged our problem is to characterize the optimal dynamic policy that simultaneously determines the production quantity and the price for each period to maximize the total discounted profit we show that the optimal replenishment policy is of a threshold type i e it is optimal to produce if and only if the starting inventory in a period is below a threshold value and that both the optimal production quantity and the optimal price in each period are decreasing in the starting inventory we further study the operational e

a periodic review production planning model with uncertain capacity and uncertain demand optimality of extended myopic policies increasing product complexity manufacturing environment complexity and an increased emphasis on product quality are all factors leading to uncertainties in production processes these uncertainties are in the form of unplanned machine maintenance varying production yields and rework among others in planning for production an adequate model must incorporate these uncertainties into the representation of the production process this paper treats the aggregate planning problem for a single product with random demand and random capacity in the single period problem random capacity does not affect the optimal policy but results in a unimodal nonconvex cost function in the multiple period and infinite horizon settings order up to policies that are dependent on the distribution of capacity are shown to be optimal in spite of a nonconvex cost in the infinite horizon setting an intuitive description of the situation leads to the notion of a class of extended myopic policies requiring the consideration o

the structure of periodic review policies in the presence of random yield this work provides a comprehensive analysis of a general periodic review production inventory model with random variable yield existence of an order point whose value does not depend on yield being random is proved in the single period case without specifying the yield model and using a very general cost structure when yield is a random multiple of lot size the nonorder up to optimal policy is characterized for a finite horizon model the finite horizon value functions are shown to converge to the solution of an infinite horizon functional equation and the infinite horizon order point is shown to be no smaller than when yield is certain

a single period stocking and pricing problem involving stochastic emergency supply abstract we develop a model for determining jointly optimal price and production policy of products with short life cycles subject to partially uncertain supply capacity within the price setting newsvendor framework we consider that demand in excess of the stocking quantity can be met by an emergency order due to the randomness of emergency supply capacity it may not always be possible to satisfy the demand completely assuming that all customers are charged the same price we explore the optimal sourcing and pricing decisions in the commonly used additive and multiplicative demand scenarios the first order conditions imply that the optimal price in the problem with random emergency supply is less than the optimal price associated with the deterministic demand problem when demand uncertainty is additive and it is greater than the optimal price associated with the deterministic demand problem when demand uncertainty is multiplicative we also find that the same type of comparative static applies in the multiplicative uncertainty case when there exists a dual source emergency system consisting of a perfectly reliable supplier and a second supplier with a stochastic capacity

factors affecting levels and growth rates in the wage rates of women evidence from nursing using data from two surveys of nurses 1981 and 1989 the study examines the factors affecting the levels and growth rates in the wage rates paid to women especially married women who were licensed as registered nurses our results indicate that the influence of such household characteristics as marital status age and number of children and spouse s characteristic tended to diminish over the 1980s the evidence further suggests that the penalties for frequent switches in employment state were larger at the end of the decade than at the beginning further wages paid to nurses with baccalaureates were statistically the same as those paid to nurses with lesser formal education the return to the baccalaureate appears to be in the form of the higher wages and salaries earned by those who obtain post baccalaureate degrees

housework wages and the division of housework time for employed spouses while the popular press may have declared housework passe with the advent of the two income household see housework is obsolescent by barbara ehrenreich 1993 for one such example the facts indicate that housework continues to consume a substantial amount of time particularly for women while estimates vary widely depending on the sample examined and the methods used to generate the information representative values of housework time range around 6 14 hours per week for men and 20 30 hours for women since wages are likely to be influenced both directly and indirectly by the time and effort devoted to other activities and since gender differences in household responsibilities are significant and often assumed to be a driving force behind gender earnings differentials decisions regarding the overall amount of time spent on housework and the division of that time within the household are important ones the goal of this paper is to shed some light on these allocation decisions we begin by discussing the various methods by which time and effort spent on housework may affect wages and summarize the available empirical evidence overall the empirical evidence indicates that time spent on housework has a negative effect on wages an effect which is most pronounced for women we next examine the amount of time spent on housework and the division of that time between working spouses to do so we draw upon the human capital literature and the bargaining literature to construct simple regression equations for time spent on housework by each spouse as well as the share of housework time contributed by the husband the results indicate that husbands do less housework than their wives as their relative earnings and hours spent in the labor market increase

would a risk averse newsvendor order less at a higher selling price we model a risk averse newsvendor s decision making behavior with some commonly used classes of utility functions within the expected utility theory eut framework under fairly general conditions of eut we show that a risk averse newsvendor will order less than an arbitrarily small quantity as selling price gets larger if price is higher than a threshold value i e the optimal order quantity decreases as the selling price increases

optimal inventory policy with supply uncertainty and demand cancellation we consider a periodic review model where the firm manages its inventory under supply uncertainty and demand cancellation we show that because of supply uncertainty the optimal inventory policy has the structure of re order point type that is we order if the initial inventory falls below this re order point otherwise we do not order this is in contrast to the work of yuan and cheung 2003 who prove the optimality of an order up to policy in the absence of supply uncertainty we also investigate the impact of supply uncertainty and demand cancellation on the performance of the supply chain using our model we are able to quantify the importance of reducing the variance of either the distribution of yield or the distribution of demand cancellation the single multiple periods and the infinite horizon models are studied

unimodality of price setting newsvendor s objective function with multiplicative demand and its applications abstract we present a general solution framework for the price setting newsvendor problem with a multiplicative stochastic demand under mild assumptions such as increasing price elasticity on the mean demand function and increasing generalized failure rate on the distribution of the random factor we first prove that both the profit function with respect to price and its derived function with respect to order quantity are quasi concave three applications are then studied under our solution framework 1 we consider a wholesale price only contract by which a manufacturer sets a wholesale price and a newsvendor determines an order quantity and the retail price and show that the manufacturer s profit function is unimodal with respect to retailing price or stocking factor under certain conditions 2 we consider a newsvendor problem in which the demand depends on both the retail price and the level of sales effort and the cost exerting the sales effort is proportional to the order quantity we prove that there exists a unique pair of price and sales effort levels that maximize the total profit this result is established under a set of mild assumptions on the demand and cost functions 3 we identify a property in the single period profit function that satisfies condition 1 of huh and janakiraman 2008 which in turn guarantees the optimality of s s policy for an infinite stationary dynamic inventory price control system with lost sales and fixed order costs finally the unimodality of the newsvendor problem with a general stochastic and price sensitive demand is studied

vertical integration and corporate strategy proposing a new look at vertical integration and the dimensions that comprise it this study develops a framework for predicting when firms use make or buy decisions the strategic business units sbus studied made fewer products and services in house and firms were engaged in fewer stages of processing when demand was highly uncertain than they did when demand was more certain internal transfers from upstream or to downstream business units were more numerous when synergies with adjacent sbus were substantial than when they were not some competitive imitation of vertical integration strategies occurred and firms with high market shares sought higher ownership stakes in stages of processing adjacent to those markets vertical integration involves a variety of decisions concerning whether corporations through their business units should provide certain goods or services in house or purchase them from outsiders instead corporations considering vertical integration one of the first diversification strategies firms consider as they progress from being single business companies must make decisions regarding the autonomy of these business units most research concerning vertical integration has assumed that savings in the costs of transactions that integration accomplishes supersede autonomy needs of strategic business units sbus according to such an assumption integrated firms will transfer all of their relevant goods and services to adjacent in house business units however this paper argues for a dynamic concept of vertical integration in which the key to effective management is understanding when corporate needs for intrafirm cooperation might take precedence over the concerns of autonomous business units and when the opposite might be true the theory developed in this study incorporates the forces of competitive settings and corporate as well as business level strategy needs in a suggested framework for appropriate use of vertical integration developing this strategy framework introduces several new dimensions that characterize all vertical integration strategies my intent is to bridge the gap between economic treatments of vertical integration and activities observed in the histories of several industries the next section briefly sketches the dimensions of this gap

creating low skilled jobs by subsidizing market contracted household work the paper analyses the determinants of household work contracted in the german shadow economy the german socio economic household panel which enumerates casual domestic employment is used to estimate the demand for such household work the regressors include regional wage rates household income and several control variables for household composition it is found that the demand for household work in the shadow economy is very income elastic this suggests that targeted wage subsidies linked to household work agencies would be very effective in raising the legal demand for domestic help a wage subsidy of 50 of wage costs could thus establish up to 500 000 new jobs for previously unemployed or non working low skilled workers the net fiscal costs of such a scheme are about 6 200 euro per full time job in addition society benefits from more law enforcement and from a raised female labour supply especially by highly qualified mothers

a stage contingent model of design and growth for technology based new ventures abstract stage of growth developmental models have traditionally been used to enhance our understanding of the organizational creation and growth process until recently most of this literature has been primarily conceptual and descriptive this paper presents a stage of growth model theorized to hold for technology based new ventures the model consists of four stages conception and development commercialization growth and stability and views each stage of growth as a reflection of the dominant problems faced over the course of growth by the venture the model predicts that the organization of a venture will be a function ofthe dominant problems that define a stage of growth more specifically it is argued that a technology based venture s rate of growth depends in part on the consistency or fit between its stage of growth and certain structural features of its organization including decision making centralization and formalization and functional specialization in the areas of marketing and sales manufacturing and engineering technology data were collected from 105 technology based ventures in the electronics computer and peripherals industries to test the model the results were generally consistent with the theory and showed that centralization of decision making decreased as the firms moved to higher stages while formalization of decision making increased in higher stages specialization of roles in the functional areas of manufacturing and marketing also increased by stage however specialization in the engineering and technology functions remained high across all stages the contingency hypothesis was also supported indicating that technology based ventures growth is partially attributable to the fit between a venture s stage of growth and aspects of its structure these findings indicate that different patterns of decision making and functional specialization are required at each stage if growth is to be achieved as such this research validates a long standing but untested belief in the venture management field that performance of new ventures depends upon

integrating dynamic pricing and replenishment decisions under supply capacity uncertainty this paper examines an integrated decision making process regarding pricing for uncertain demand and sourcing from uncertain supply which are often studied separately in the literature our analysis of the integrated system suggests that the base stock list price policy fails to achieve optimality even under deterministic demand instead the optimal policy is characterized by two critical values a reorder point and a target safety stock under this policy a positive order is issued if and only if the inventory level is below the reorder point when this happens the optimal order and price are coordinated to achieve a constant target safety stock which aims at hedging the demand uncertainty we further investigate the profit improvement obtained from deploying dynamic pricing as opposed to static pricing our results indicate that either supply limit or supply uncertainty may induce a significant benefit from dynamic pricing and the compound effect of supply limit and uncertainty can be much more pronounced than the individual effects whether or not the supply capacity is limited has a major implication on the value of dynamic pricing under unlimited supply dynamic pricing is more valuable when procurement cost is high or when demand is more sensitive to price with limited supply however the capacity restriction tends to be relaxed reducing the value of dynamic pricing

the risk averse newsvendor problem with random capacity abstract we study the effect of capacity uncertainty on the inventory decisions of a risk averse newsvendor we consider two well known risk criteria namely value at risk var included as a constraint and conditional value at risk cvar for the risk neutral newsvendor we find that the optimal order quantity is not affected by the capacity uncertainty however this result does not hold for the risk averse newsvendor problem specifically we find that capacity uncertainty decreases the order quantity under the cvar criterion under the var constraint capacity uncertainty leads to an order decrease for low confidence levels but to an order increase for high confidence levels this implies that the risk criterion should be carefully selected as it has an important effect on inventory decisions this is shown for the newsvendor problem but is also likely to hold for other inventory control problems that future research can address

the role of preferences and opportunity costs in determining the time allocated to housework the time devoted to housework in couple households is substantial research on intrahousehold time allocations has generally assumed that housework is a necessary evil and that the partner with the lower opportunity cost of time in the market will devote more time to home production in reality households individuals are likely motivated to maximize happiness and preferences regarding even mundane household chores differ considerably we use information on preferences opportunity costs and time use from the 2000 2001 united kingdom time use survey to examine the time partners spend doing laundry ironing cleaning and food shopping while compared with other household chores such as gardening and do it yourself repairs the selected activities are generally less enjoyable preferences do vary across the population and are correlated with reported time use joint multivariate analysis of his and her time on weekend and weekday days as well as maid service reveals that her opportunity cost of time matters substantially more than his but that his preferences play a greater role than hers

small business growth through geographic expansion abstract although the small business sector as a whole is achieving phenomenal growth an important concern in the field has been identifying the problems challenges and success characteristics associated with the prudent growth of individual firms a strategy utilized by many small firms to achieve their growth objectives is one of geographic expansion this approach involves expanding a firm s business from its original location to one or more additional geographic sites and is particularly well suited for firms that cannot expand in their present location but believe that their products or services may be appealing to consumers in other markets surprisingly despite the prevalence of geographic expansion as a means of small firm growth this is a neglected area of small business research although researchers have examined the common challenges associated with small firm growth a small business that expands from one location to several locations is subject to a number of potentially unique challenges for example during the course of opening a new geographic site a small business manager will be confronted with the task of managing an existing business and a start up at the same time the challenge created by this undertaking along with the other challenges associated with geographic expansion have not been specifically identified an improved understanding of these challenges may help small firm managers maximize their changes of leading successful expansion efforts as a result of the lack of research in this area this study used a comparative case study methodology to develop a theoretical model of the antecedents of effective small business geographic expansion the model was developed in two steps first a preliminary model of the antecedents of effective small business geographic expansion was developed from the existing small business growth literature second using analytic induction the preliminary model was compared with the experiences of five small businesses that have engaged in a growth strategy of geographic expansion for the purpose of developing a more thorough and more valid theoretical model a unique attribute of the sample is that not all of the businesses have been successful in their expansion efforts two of the five small businesses included in the study have had failed expansions providing us the rare opportunity to contrast failed expansion efforts against successful ones the model that emerged from this approach supports the notion that geographic expansion involves a unique set of managerial challenges the consistent evidence across the five case studies indicated that effective small business geographic expansion involves the following six major areas of concern planning for growth managing growth reasons for growth expansion site characteristics a set of moderator variables and expansion performance among the implications of the study is that the unique nature of the geographic expansion process adds a layer of complexity to firm growth that exacerbates the need for planning along with the normal challenges involved with adding structure to accommodate growth a firm that engages in geographic expansion must do this in an unfamiliar location where the market potential and legitimacy of the firm s business concept is untested the consistent evidence that emerged from the cases is that planning helps attenuate these challenges in addition the recruitment and selection of qualified personnel to staff expansion sites is a critical activity along with networking in the expansion site locations to establish organizational legitimacy three variables were found to moderate the relationship between managing growth and expansion performance learning and flexibility were found to have a positive influence on the managing growth expansion performance relationship whereas environmental turbulence was found to have the opposite impact finally a complex set of relationships emerged from the study pertaining to expansion site characteristics for instance the evidence generated across the cases suggested that planning helps a firm develop a set of heuristics for expansion site selection which helps a firm avoid placing a site in an undesirable location

diversification under supply uncertainty supply chain management is becoming an increasingly important issue especially when in most industries the cost of materials purchased comprises 40 60 of the total sales revenue despite the benefits cited for single sourcing in the popular literature there is enough evidence of industries having two three sources for most parts in this paper we address the operational issue of quantity allocation between two uncertain suppliers and its effects on the inventory policies of the buyer based on the type of delivery contract a buyer has with the suppliers we suggest three models for the supply process model i is a one delivery contract with all of the order quantity delivered either in the current period with probability or in the next period with probability 1 model ii is also a one delivery contract with a random fraction of the order quantity delivered in the current period the portion of the order quantity not delivered is cancelled model iii is similar to model ii with the remaining quantity delivered in the next period we derive the optimal ordering policies that minimize the total ordering holding and penalty costs with backlogging we show that the optimal ordering policy in period n for each of these models is as follows for x a n order nothing for vi n x a n use only one supplier and for x vi n order from both suppliers for the limiting case in the single period version of model i we derive conditions under which one would continue ordering from one or the other or both suppliers for model ii we give sufficient conditions for not using the second more expensive supplier when the demand and yield distributions have some special form for the single period version of models ii and iii with equal marginal ordering costs we show that the optimal order quantities follow a ratio rule when demand is exponential and yields are either normal or gamma distributed

a quantitative content analysis of the characteristics of rapid growth firms and their founders a group of firms that is attracting attention are rapid growth firms these firms are of particular interest because rapid growth is an indication of market acceptance and firm success by studying rapidgrowth firms researchers can help all firms better understand the attributes associated with firm growth despite these positive outcomes however rapid firm growth is difficult to achieve and maintain this study adds to the literature through a quantitative content analysis of the narrative descriptions of 50 rapid growth firms and a comparison group of 50 slow growth companies the purpose of the study was to draw from the narratives a list of empirically grounded growth related attributes that are associated with rapid growth firms the findings of the study resulted in the advancement of a conceptual model of the attributes of rapid growth firms in four areas founder characteristics firm attributes business practices and human resource management hrm practices

double marginalization and coordination in the supply chain with uncertain supply abstract this paper explores a generalized supply chain model subject to supply uncertainty after the supplier chooses the production input level decentralized systems under wholesale price contracts are investigated with double marginalization effects shown to lead to supply insufficiencies in the cases of both deterministic and random demands we then design coordination contracts for each case and find that an accept all type of contract is required to coordinate the supply chain with random demand which is a much more complicated situation than that with deterministic demand examples are provided to illustrate the application of our findings to specific industrial domains moreover our coordination mechanisms are shown to be applicable to the multi supplier situation which fills the research gap on assembly system coordination with random yield and random demand under a voluntary compliance regime

new empirical generalizations on the determinants of price elasticity abstract the importance of pricing decisions for firms has fueled an extensive stream of research on price elasticities in an influential meta analytical study tellis 1988 summarized price elasticity research findings until 1986 however empirical generalizations on price elasticity require modifications because of 1 changes in market characteristics i e characteristics of brands product categories and economic conditions and 2 changes in the research methodology used to assess price elasticities therefore the authors present a meta analysis of price elasticity with new empirical generalizations on its determinants across a set of 1851 price elasticities based on 81 studies the average price elasticity is 2 62 a salient finding is that over the past four decades sales elasticities have significantly increased in magnitude whereas share and choice elasticities have remained fairly constant the authors find that accommodating price endogeneity has a strong magnitude increasing impa

content and performance of growth seeking strategies a comparison of small firms in high and low technology industries abstract the question of how to grow and gain market share is repeatedly asked by small firm managers yet little help exists in the academic literature in terms of identification of specific business practices and competitive tactics associated with the pursuit of market share growth rather most discussion of appropriate strategies for small firm growth centers around the prescription of broad strategy types e g the often recommended niche strat egy furthermore the environment s potential effects on the viability of growth strategies seldom receive adequate treatment in the small firm strategy literature despite the long acknowledged influence of environmental conditions on strategy content this paper describes a study of the business strategies used by small growth seeking firms in high and low technology industries the construct of strategy was examined from both a micro level focusing on individual strategy dimensions and a macro level focusing on the firms overall strategic postures and patterns of strategy related variables data were collected from the senior executives of 57 small manufacturing firms whose mission strategies were to aggressively increase sales and market share the data indicate that growth seeking firms in high technology industries relative to those in low technology industries 1 rely more heavily on advertising 2 place more emphasis on product related issues e g new product development superior product warranties as a basis for building market share 3 rely more heavily on formal planning activities 4 place more emphasis on customer service support 5 rely more heavily on external financing 6 rely more heavily on premium pricing strategies and 7 have more entrepreneurial strategic postures the data also indicate that an entrepreneurial strategic posture is more positively associated with firm performance among growth seeking firms in low tech industries than among those in high tech industries although there are exceptions to this finding cluster analysis was used to identify the content and performance of various strategies operationally defined as patterns of strategic variables associated with growth seeking firms in high and low technology industries four strategies were identified through this technique two of which are most common among firms in low tech industries one of which is most common among firms in high tech industries and one of which is equally prevalent in both industry types these results corroborate several of the aforementioned findings regarding the effects of industry technological sophistication on dimensions of firm strategy for example they demonstrate the general aversion among growth seeking firms in low tech industries to premium pricing furthermore they suggest that overall growth seeking firms in low tech industries may be somewhat more disposed to pursuing cost leadership strategies and less disposed to pursuing differentiation strategies than growth seeking firms in high tech industries there were no overall performance differences across the four strategy types identified through the cluster analysis however the data suggest that an entrepreneurial strategic posture is most strongly associated with high performance among firms that have a cohesive and focused strategic mix or pattern of strategic decisions this finding holds for growth seeking firms in both industry types

recovering hicksian consumer surplus within a collective model hausman s method for the household the purpose of this paper is to describe the implications of the collective model of household behavior for the methods used to estimate the economic value of non marketed environmental resources after demonstrating how the separability restrictions inherent in the collective model allow individual preference and household income allocation choices to be distinguished the paper demonstrates how the framework can be used to recover hicksian consumer surplus an algebraic example is used to illustrate how the framework can be used in valuing environmental resources

mean downside risk and mean variance newsvendor models implications for sustainable fashion retailing abstract newsvendor models have been well established for studying supply chain management problems with fashionable products in this paper we explore the mean downside risk mdr and mean variance mv newsvendor models under both the exogenous and endogenous retail price decision cases we first construct analytical models with the mdr and mv objectives we then show that the analytical solution schemes for both the mdr and mv problems are the same with the measures for sustainability such as the expected quantity of goods leftover the expected sales to expected goods leftover ratio the rate of return on investment and the probability of achieving a pre determined profit target we proceed to compare the levels of sustainability by the fashion retailers which employ the mean risk and the risk neutral models insights are generated

maids appliances and couples housework the demand for inputs to domestic production maids household appliances and housework time are key inputs to domestic production this study uses data from the uk and france to estimate the effects of resource prices on the demand for these inputs we conclude that higher opportunity costs of time increase the likelihood of having maid services and appliances women s time costs are also positively related to his housework time and negatively related to hers finally maid service appears to be a closer substitute for housework time on weekend days than weekdays suggesting smaller labour supply effects than anticipated by earlier literature abstract from author

an elasticity approach to the newsvendor with price sensitive demand we introduce a measure of elasticity of stochastic demand called the elasticity of the lost sales rate which offers a unifying perspective on the well known newsvendor with pricing problem this new concept provides a framework to characterize structural results for coordinated and uncoordinated pricing and inventory strategies concavity and submodularity of the profit function as well as sensitivity properties of the optimal inventory and price policies are characterized by monotonicity conditions or bounds on the elasticity of the lost sales rate these elasticity conditions are satisfied by most relevant demand models in the marketing and operations literature our results unify and complement previous work on price setting newsvendor models and provide a new tool for researchers modeling stochastic price sensitive demand in other contexts

combined pricing and inventory control under uncertainty this paper addresses the simultaneous determination of pricing and inventory replenishment strategies in the face of demand uncertainty more specifically we analyze the following single item periodic review model demands in consecutive periods are independent but their distributions depend on the item s price in accordance with general stochastic demand functions the price charged in any given period can be specified dynamically as a function of the state of the system a replenishment order may be placed at the beginning of some or all of the periods stockouts are fully backlogged we address both finite and infinite horizon models with the objective of maximizing total expected discounted profit or its time average value assuming that prices can either be adjusted arbitrarily upward or downward or that they can only be decreased we characterize the structure of an optimal combined pricing and inventory strategy for all of the above types of models we also develop an efficient value iteration method to compute these optimal strategies finally we report on an extensive numerical study that characterizes various qualitative properties of the optimal strategies and corresponding optimal profit values

does housework lower wages evidence for britain this paper uses the british household panel survey to present the first estimates of the housework wage relationship in britain controlling for permanent unobserved heterogeneity we find that housework has a negative impact on the wages of men and women both married and single who work full time among women working part time only single women suffer a housework penalty the housework penalty is uniform across occupations within full time jobs but some part time jobs appear to be more compatible with housework than others we find tentative evidence that the housework penalty is larger when there are children present

economics and identity this paper considers how identity a person s sense of self affects economic outcomes we incorporate the psychology and sociology of identity into an economic model of behavior in the utility function we propose identity is associated with different social categories and how people in these categories should behave we then construct a simple game theoretic model showing how identity can affect individual interactions the paper adapts these models to gender discrimination in the workplace the economics of poverty and social exclusion and the household division of labor in each case the inclusion of identity substantively changes conclusions of previous economic analysis

a benchmark solution for the risk averse newsvendor problem in this paper we derive the first order conditions for optimality for the problem of a risk averse expected utility maximizer newsvendor we use these conditions to solve a special case where the utility function is any increasing differentiable function and the random demand is uniformly distributed this special case has a simple closed form solution and therefore it provides an insightful and practical interpretation to the optimal point we show some properties of the solution and also demonstrate how it can be used for assessing the newsvendor utility function parameters

labour supply and commuting abstract we examine the effect of commuting distance on workers labour supply patterns distinguishing between weekly labour supply number of workdays per week and daily labour supply we account for endogeneity of distance by using employer induced changes in distance in germany distance has a slight positive effect on daily and weekly labour supply but no effect on the number of workdays the effect of distance on labour supply patterns is stronger for female workers but it is still small

inventory control with an exponential utility criterion a base stock policy is shown to be optimal when a dynamic version of the news vendor model is optimized with respect to an exponential utility criterion

joint replenishment and pricing decisions in inventory systems with stochastically dependent supply capacity abstract in this paper we study a joint optimization problem of replenishment and pricing for a periodic review inventory system with random supply capacity when making replenishment and pricing decisions at the beginning of each period the firm only knows the supplier s available capacity in the current period but does not know what will be the available capacity in future periods the salient feature of our model is that the random supply capacities for different periods are dependent several stochastic dependency structures are considered for the supply capacity sequence including the one lag and the multi lag dependency we show that the optimal inventory control policy is of the modified base stock type and the base stock level is decreasing in the available capacity of the current period and that the optimal pricing policy is a list price coined with markdown and markup this paper generalizes the work of federgruen and zipkin federgruen a zipkin p 1986a an inventory model with limited production capacity and uncertain demands i the average cost criterion mathematics of operations research 11 193 207 federgruen a zipkin p 1986b an inventory model with limited production capacity and uncertain demands ii the discounted cost criterion mathematics of operations research 11 208 215 in which the supply capacity and selling price are assumed to be fixed constants and the work of federgruen and heching federgruen a heching a 1999 combining pricing and inventory control under uncertainty operations research 47 454 475 on joint optimization of replenishment and pricing with unlimited supply capacity

technical note optimal product pricing and component production quantities for an assembly system under supply uncertainty we consider an assemble to order system where one of the components faces uncertainty in the supply process in which the actual available quantity is equal to some random fraction of the production quantity demand is assumed to be price dependent we analyze how the supply uncertainty of one component affects the product pricing and production quantities of all the components under the assembly structure we show that it is profitable for the firm to assemble the product only if the product price exceeds a certain threshold this price threshold increases as the unit cost of each component or the degree of variability of the supply reliability distribution increases but it is independent of the underlying demand function and demand distribution also the optimal product price decreases as supply uncertainty decreases we further show that under deterministic demand the components can be managed independently such that the production quantity or unit cost of the component with supply uncertainty does not affect the optimal production quantity of the other components as long as it is profitable to assemble the product however when demand is stochastic the optimal production quantity of each component depends on the supply reliability distribution as well as the unit costs of the other components for a fixed product price the optimal production quantities of the components are smaller when the unit product price is low and they are higher when the unit product price is high as compared to the case with no supply uncertainty

supply and demand uncertainty reduction efforts and cost comparison abstract in industries like health care consumer goods and agriculture shortages are widely observed and the consequences can be costly one of the main drivers of such shortages is the uncertain nature of supply and demand to reduce uncertainties sufficient information about supply and demand can be obtained by gathering relevant data e g auditing suppliers and conducting market research in this paper we conduct an analysis to examine the impacts of supply uncertainty demand uncertainty and uncertainty reduction efforts on production quantity and total cost we show that in the absence of uncertainty reduction efforts when the financial consequences of shortages are large or when the unit benefit is large supply uncertainty is more costly than demand uncertainty in addition exerting supply uncertainty reduction effort always causes the firm to produce fewer units than exerting demand uncertainty reduction effort although supply uncertainty reduction effort delivers a larger degree of improvement to total cost and hence is more efficient reduced supply uncertainty still leads to a higher system cost than does reduced demand uncertainty

trends in the well being of american women 1970 1995 this paper examines the trends in the well being of american women over the last 25 years a time of significant changes in the relative economic status of women and in the labor market as a whole a broad range of indicators are considered to capture changes in women s well being in the family as well as in the labor market for virtually all age and education groups substantial evidence is obtained of rising gender equality in labor market outcomes notably labor force participation wages and occupational distributions broad evidence is also found of greater gender parity within married couple families as the housework time of husbands increased relative to wives and the relative wages of wives rose compared to their husbands however parallel to the recent evidence of the declining labor market position of lower skilled men there has been a similar deterioration in the economic status of less educated women especially high school dropouts their labor force participation rates and wages have risen at a much slower pace than those of more highly educated women while their incidence of single headship has increased much more rapidly these findings for less educated women serve to underscore the widening gap between more and less skilled americans of both sexes as well as to emphasize its broad dimensions

newsvendor model with random supply and financial hedging utility based approach abstract this paper takes a utility based approach to the single period and single item newsvendor model unlike most models in the literature the newsvendor is not necessarily risk neutral and chooses the order quantity that maximizes the expected utility of the cash flow at the end of the period we suppose that there is uncertainty in demand as well as supply furthermore random demand and supply may be correlated with the financial markets the newsvendor exploits this correlation and manages his risks by investing in a portfolio of financial instruments the decision problem therefore includes not only the determination of the optimal ordering policy but also the selection of the optimal portfolio at the same time we first use a minimum variance approach to select the portfolio the analysis results in some interesting and explicit characterizations on the structure of the optimal policy we also present numerical examples to illustrate the effects of the parameters on the optimal order quantity and the importance of financial hedging on risk reduction

a risk averse newsvendor model under marketing dependency and price dependency abstract in this paper we analyze a single period inventory model where a risk averse newsvendor makes a joint decision on ordering pricing and marketing under the cvar risk measure criterion the newsvendor can exert marketing effort to enhance market demand we assume that the newsvendor s marketing effort affects the scale of the demand distribution and hence to model the marketing dependent demand as a multiplicative form we characterize sufficient conditions that guarantee existence and uniqueness of the optimal solutions under some mild assumptions on demand distribution expected demand function and marketing effort cost which are widely used in the related literature we show that the optimal order quantity increases in the newsvendor s marketing effort but the optimal price remains unchanged whether the demand is marketing dependent or not additionally we explore impact of exogenous parameters such as unit order cost salvage value and the newsvendor s risk aversion coefficient on the optimal decision variables and find that the optimal marketing effort always keeps the same changing direction with the optimal marketing independent order quantity as the exogenous parameters change this suggests that impact of the parameters on the optimal order quantity gets strengthened in the case of marketing dependent demand

detailed estimation of worklife expectancy for the measurement of human capital accounting for marriage and children abstract measuring an individual s human capital at a point in time as the present actuarial value of expected net lifetime earnings has a lengthy history calculating such measures requires accurate estimates of worklife expectancy here worklife estimates for men and women in the usa categorized by educational attainment race marital status parental status and current labour force status are presented race has a much larger impact on the worklife expectancy of men than women education is associated with larger worklife differentials for women the association between marriage and worklife expectancy is significant but of opposite sign for men and women married women men have a lower higher worklife expectancy than single women men parenthood is associated with a reduction in the worklife expectancy of women the association is smaller and varies from positive for some education marital status groups to negative for others for men

stumblers and stars in the management of rapid growth this article examines the problems of managing a rapid growth firm we contend that instead of being a time for entrepreneurial celebration and relief a period of over 50 growth is a time for wariness and some very difficult decisions such firms face a fragile transition they are beyond being intimate cohesive entrepreneurial ventures but they have not yet become secure stable entities not only are they in flux but these firms are often disoriented by the pace at which change is occurring firms such as atari cray research cullinet osborne computers people express and rolm recently have faced or now face these challenges with very different degrees of success this article presents observations drawn from several sources a study of thirty rapid growth firms which we have underway literature and press accounts of rapid growth and our consulting and discussions with executives in such firms while far from definitive the article reports several themes that are very pronounced in the situations we have studied these themes are of two types 1 recurring challenges and traps faced by rapid growth companies and 2 characteristics af firms which seem to avoid or surmount these traps these are the four fundamental challenges that we see confronting rapid growth firms 1 1 instant size these firms double and triple in size very quickly this in turn creates problems of disaffection inadequate skills and inadequate systems 2 2 a sense of infallibility by virtue of their success to date rapid growth firms often view their strategies and behaviors as infallible the unfortunate irony is that they become convinced of their wisdom while the environment is turbulent and large competitors are entering 3 3 internal turmoil as a social organism a firm growing at 50 per year is under great strain there is a stream of new faces people who do not know each other and who do not know the company decision making suffers turf battles abound and people burn out 4 4 extraordinary resource needs rapid growth firms are typically cash starved instead of abundance they often face a bare bones existence each of these challenges calls for its own solutions but we have observed some overarching themes in firms that have successfully traversed a period of rapid growth the chief executive is able to envision and anticipate the firm as a larger entity the team needed for tomorrow is hired and developed today the original core vision of the firm is constantly and zealously reinforced new big company processes are introduced gradually as supplements to rather than replacements for existing approaches hierarchy is minimized employees hold a financial stake in the firm beyond developing these themes for success the article concludes with a brief discussion of the effectiveness of owner founders in rapid growth situations

optimal policies for inventory systems with finite capacity and partially observed markov modulated demand and supply processes we analyze a single item periodic review inventory system with random yield and finite capacity operating in a random environment the primary objective is to extend the model of gallego and hu 2004 to the more general case when the environment is only partially observable although our analysis is specific to inventory systems it can also be applied to production systems by replacing the fixed capacity supplier with a fixed capacity producer using sufficient statistics we consider single period multiple period and infinite period problems to show that a state dependent modified inflated base stock policy is optimal moreover we show that the multiple period cost converges to the infinite period cost as the length of the planning horizon increases

multi product newsvendor problem with value at risk considerations abstract we consider the single period stochastic inventory newsvendor problem with downside risk constraints the aim in the classical newsvendor problem is maximizing the expected profit this formulation does not take into account the risk of earning less than a desired target profit or losing more than an acceptable level due to the randomness of demand we utilize value at risk var as the risk measure in a newsvendor framework and investigate the multi product newsvendor problem under a var constraint to this end we first derive the exact distribution function for the two product newsvendor problem and develop an approximation method for the profit distribution of the n product case n 2 a mathematical programming approach is used to determine the solution of the newsvendor problem with a var constraint this approach allows us to handle a wide range of cases including the correlated demand case that yields new results and insights the accuracy of the approximation method and the effects of the system parameters on the solution are investigated numerically

operational flexibility and financial hedging complements or substitutes we consider a firm that invests in capacity under demand uncertainty and thus faces two related but distinct types of risk mismatch between capacity and demand and profit variability whereas mismatch risk can be mitigated with greater operational flexibility profit variability can be reduced through financial hedging we show that the relationship between these two risk mitigating strategies depends on the type of flexibility product flexibility and financial hedging tend to be complements substitutes i e product flexibility tends to increase decrease the value of financial hedging and vice versa financial hedging tends to increase decrease the value of product flexibility when product demands are positively negatively correlated in contrast to product flexibility postponement flexibility is a substitute to financial hedging as intuitively expected although our analytical results assume perfect flexibility and perfect hedging and rely on a linear approximation of the value of hedging we validate their robustness in an extensive numerical study

commuting and labour supply revisited according to theory road pricing may reduce welfare when labour supply is negatively distorted by an income tax this effect particularly occurs when commuting costs reduce labour supply we examine the hypothesis that commuting costs reduce labour supply in the short run in particular we estimate the effect of commuting time on labour supply in the uk we account for endogeneity of commuting time by employing exogenous changes in commuting time resulting from firm relocations and changes in infrastructure our results cast doubt on the idea that increases in commuting cost reduce labour supply at least in the short run more precisely we find that females labour supply reacts positively to or is unaffected by increases in commuting time whereas males labour supply is unaffected