interfering with secondary markets we present a model to address in a unified manner four ways in which a monopolist can interfere with secondary markets in the model consumers have heterogeneous valuations for quality so that used good markets play an allocative role our results are the following 1 in contrast to swan s famous independence result a monopolist does not provide socially optimal durability 2 allowing the monopolist to rent does not restore socially optimal durability and increases the monopolist s market power in the used market however forcing the monopolist to sell the goods may be a bad policy because it would lead to either lower output or lower durability 3 the manufacturer benefits from a well functioning used good market despite the fact that used goods provide competition for new goods 4 the monopolist prefers to restrict consumers abilities to maintain the good

durable goods and product obsolescence the issue of product obsolescence is addressed by examining the optimal sales strategy of a monopolist firm that may introduce an improved version of its current product consumers expectations of a forthcoming product lowers the price that they are willing to pay for the current product because of its loss in value due to obsolescence the new product is characterized by consumers increased willingness to pay and by its competitive interaction with the old product these characteristics affect the tradeoff that the firm makes between the cost of waiting for new product sales versus the cost of cannibalizing these sales we analyze the effect of these characteristics of the new product on the firm s optimal sales strategy we consider the various policy measures available to the firm including limiting initial sales in order to lower cannibalization of the new product buying back the earlier version of the product in order to generate greater demand for the new product and announcements of future product introductions we find that for modest levels of product improvement the firm s optimal policy is to phase out sales of the old product while for large improvements a buy back policy is more profitable lastly we find that the firm is better off if it informs consumers whether a new product is forthcoming

terrorism and the fate of dictators the authors study the influence of domestic political dissent and violence on incumbent dictators and their regimes they argue that elite with an interest in preserving the regime hold dictators accountable when there is a significant increase in terrorism to pinpoint the accountability of dictators to elite who are strongly invested in the current regime the authors make a novel theoretical distinction between reshuffling coups that change the leader but leave the regime intact and regime change coups that completely change the set of elites atop the regime using a new data set that distinguishes between these two coup types the authors provide robust evidence that terrorism is a consistent predictor of reshuffling coups whereas forms of dissent that require broader public participation and support such as protests and insurgencies are associated with regime change coup attempts this article is the first to show that incumbent dictators are held accountable for terrorist campaigns that occur on their watch

limit order submission strategies under asymmetric information abstract this paper provides evidence that informed traders dominate the response of limit order submissions to shocks in a pure limit order market in the market we study informed traders are highly sensitive to spreads volatility momentum and depth by contrast uninformed traders are relatively insensitive to all these market conditions the dominance of the informed over limit order submissions is magnified by contrasts between them and the uninformed in the use of aggressively priced limit orders

reverse channel design the case of competing retailers the economical and environmental benefits of product remanufacturing have been widely recognized in the literature and in practice in this paper we focus on the interaction between a manufacturers reverse channel choice to collect postconsumer goods and the strategic product pricing decisions in the forward channel when retailing is competitive to this end we model a direct product collection system in which the manufacturer collects used products directly from the consumers e g print and copy cartridges and an indirect product collection system in which the retailers act as product return points e g single use cameras cellular phones we first examine how the allocation of product collection to retailers impacts their strategic behavior in the product market and we discuss the economic trade offs the manufacturer faces while choosing an optimal reverse channel structure when a direct collection system is used channel profits are driven by the impact of scale of returns on collection effort whereas in the indirect reverse channel supply chain profits are driven by the competitive interaction between the retailers subsequently we show that the buy back payments transfered to the retailers for postconsumer goods provide a wholesale pricing flexibility that can be used to price discriminate between retailers of different profitability

a model of product line design and introduction sequence with reservation utility abstract cannibalization is a major concern for a firm when designing a product line in addition external options from outside the firm s product line may also play a significant role in this paper we investigate the impact of external options represented by reservation utility on product line design and introduction sequence we find that a heterogeneous reservation utility defines the relative attractiveness of segments and corresponding product line b reservation utility makes it more favorable to introduce products sequentially rather than simultaneously c aggregating segments is an effective way to mitigate cannibalization when it becomes too difficult to manage with different values of reservation utility across multiple segments and d introducing products in a non monotone order of quality can improve profit from simultaneous introduction when the value of reservation utility of a middle segment is particularly high

analysing remanufacturing decisions of supply chain members in uncertainty of consumer preferences abstractthis article formulates a gaming model of the closed loop supply chain with manufacturers as the leader sellers and consumers where consumers may or may not be willing to pay remunerative price for remanufactured products vis a vis new products in the model manufacturers produce new as well as remanufactured products whereas sellers distribute them in stable circumstances this article presents the functional formula of the optimal manufacturing pricing decisions the results show that when the cost of new products is significantly lower than that of remanufactured ones manufacturers choose to produce new products only when the difference between cost of new and remanufactured products is moderate manufacturers tend to produce both new and remanufactured products and in some regions production of new and remanufactured products is proportional to each other when the difference between cost of new and remanufactured products is enormous their production and sale tend to stop also th

the effect of scale on the response to reform by chinese state owned construction units abstract using firm level data on large and medium state owned construction units a production function approach evaluates the effect of scale on the response of chinese state enterprises to reform large state units have greater economies of scale but are less productive and less input price efficient as investment increases in nonproductive fixed assets large unit profits are declining fastest and a comparison of coastal interior and ministry level units contradicts the hypothesis that competition is the primary source of this decline instead falling profits are explained by the increased autonomy which allows these units to be more inefficient

strategic and operational decisions under sales competition and collection competition for end of use products in remanufacturing abstract providing incentives to customers for recycling their end of use products is a commonly adopted strategy by remanufacturers for achieving economic scale of remanufacturing however the entrance of remanufacturers threaten the sales of new products that are produced by original equipment manufacturers oems thus oems may also take back end of use products by providing incentives to restrict the capacities of remanufacturers consequently oems and remanufacturers compete not only on prices in sales market but also on incentives in recycle market therefore we formulate a closed loop supply chain model consisting of an oem and a remanufacturer to investigate their equilibrium prices and incentives moreover we consider that the remanufacturer can strategically focus the economies of scale on the sales market or on the recycle market we derive the equilibrium decisions and profits under each of the remanufacturer s strategies and identify the characteristics of these equilibrium results we further derive the conditions to determine the firms behaviors toward the competition we also find that the higher competitiveness in the sales market will encourage the remanufacturer to focus the economic scale on the recycle market instead of the sales market which is also beneficial to the oem

impact of uncertainty in the quality of returns on the profitability of a single period refurbishing operation this paper investigates how the profitability of reuse activities is affected by uncertainty regarding the quality of returned products specifically we examine a reverse supply chain consisting of two collection sites and a refurbishing site which faces stochastic demand for refurbished products in a single period setting the quality of returns refurbishing yield becomes known only after the transportation of the products to the refurbishing site we prove that the expected profit function has a unique optimal solution procurement and production quantities and we derive the conditions under which it is optimal to use only one of the collection sites the analysis is supported by numerical results which provide insights regarding the effect of the uncertain yields at the two collection sites and their correlation on optimal decisions and system profitability

takeovers and other influences on economic performance a plant level analysis the results of an empirical investigation into the effects of takeovers and other variables on corporate performance is reported our sample of 972 establishments is taken from the workplace industrial relations survey 1984in which the plant is the unit of investigation and the assessment of performance is made by mangers using logit analysis we find that the main determinansts of relative financial performance are avoidance of takeover and strength of market position the main determinants of growth of sales are profitability change of ownership smaller size and lack of market dominance in these results we find support at the plant level for views on the effects of mergers market dominance and the determinants of growth that have traditionally been demonstrated at the level of the firm

evidence on the volunteer labor supply of married women 1 introduction in this paper i investigate the volunteer labor supply of married women there are dozens of studies that examine the labor supply of married women and a smaller number that investigate the supply of volunteer labor in general as far as i know there are none that have focused on the supply of volunteer labor by married women i analyze time diary data for the 1970s to consider one main question and three subsidiary questions i what was the direct effect of economic variables after tax wage rate and other income on married women s volunteering both participation and hours ii does the number of children in the family influence the volunteering of married women to the extent that rising wages may induce smaller family size is this an indirect channel that reduces volunteering if one of the motivations for volunteering is to increase the quantity or quality of activities for one s own children the 1970s is an especially interesting time period to examine in the united states as that was the decade that saw the first large increases in married women s labor force participation rates iii are time and donations substitutes or complements for married women iv do the data support the brown and lankford 1992 modeling conjecture concerning a sequence of time allocation decisions as opposed to the gronau model of household time allocation where such decisions are made simultaneously gronau 1986 i find that i the volunteer labor supply for married women is positively sloped and inelastic with an estimated wage elasticity of 0 64 rises in the net wage have a small negative effect on married women s participation in volunteer activities a 25 rise in the net wage is associated with a 1 drop in the probability of volunteering there is a small negative other income from assets and husband s earnings elasticity of volunteer labor supply 0 09 so other sources of income mattered for married women s volunteering in the 1970s the effect of other income on married women s volunteer participation is positive ii having more children increases the probability of volunteering but reduces the number of hours volunteered iii donations of time and money appear to be substitutes overall the elasticity of married women s volunteer hours with respect to the tax price of giving is greater than two the participation effect is again negative this result is tentative because the data are not based on tax return information and i lack good information on cash donations iv there is mixed support for the brown and lankford conjecture the finding of a positive wage elasticity of volunteer labor supply is at odds with the opportunity cost of time interpretation of the wage especially as the finding for other income is also negative implying that volunteer hours are an inferior good substitution and income effects would therefore both be in a negative direction as the net wage rises the results with the sequential specification are sensible and easily interpreted but the key parameter estimate does not quite meet conventional standards of statistical significance increased hours of work decrease married women s participation and hours an added test of the sequential model is less favorable the wage findings suggest that rising wages for women caused a reduced incidence of volunteering among married women but if anything increased the hours of volunteering one possible vehicle for this would be the entry of women into professional careers where volunteering is a normal part of the career another possible explanation is that married women with a loose attachment to volunteering stopped volunteering and those married women with greater attachment to volunteering increased their hours commitments to offset the participation effect the link between children and volunteering is important as an indicator of how much selfinterest is involved in volunteering for example school volunteering may be a way of providing enhanced investment in one s own children where the benefit to others is a by product

pricing used products for remanufacturing remanufacturing is one of recovery options for used products as remanufacturing requires a continuous supply of used products the economic incentive is required to attract customers to return their used products called cores and the problem of pricing a core becomes an important issue such a pricing problem is analogous to pricing an option which can be used to sell the remanufactured cores called core products as sales price of core products follows a geometric brownian motion we propose a model here to evaluate the acquisition price of cores this model links core acquisition price with the sale price of core product but assumes other costs such as logistics and remanufacturing to be deterministic we have presented a numerical example to show its applicability since the model proposed here is generic it is believed that the proposed model can be used in setting the core prices in many situations

production decisions of new and remanufactured products implications for low carbon emission economy carbon emission is not as free as they used to be under the carbon emission tax policy manufacturers face a choice of whether to reduce their carbon emission through remanufacturing or low carbon technologies in this paper we characterize the optimal carbon emission tax policy through a two period production decision model in which new products and remanufactured products are clearly distinguishable the effects of a carbon emission tax on the optimal production decision of manufacturing and remanufacturing is investigated it is found that there are rational remanufacturing production strategies for different products based on different remanufacturing cost savings and carbon emission savings per remanufactured product under a carbon emission tax policy manufacturers can offset the cannibalisation and negative economic impact of the carbon emission tax policy by making low carbon emission technology investment furthermore the government can stimulate the manufacturer to invest in carbon emission reduction technologies and remanufacturing simultaneously by choosing a reasonable carbon emission tax

comparing public and private schools the puzzling role of selectivity bias recent articles using the same data and variants of the same estimation technique report conflicting estimates of the relative quality of education provided by public and catholic schools this article explains the reasons for the conflict in so doing the article clarifies the assumptions underlying the increasingly popular two step methods for controlling selectivity bias and highlights the hazards of using these methods when the assumptions are not satisfied the article also illustrates an alternative method for detecting the presence of selectivity bias

r d and subsidies at the firm level an application of parametric and semi parametric two step selection models this paper analyzes the effects of public r d subsidies on r d expenditure in the german manufacturing sector the focus is on the question whether public r d funding stimulates or crowds out private investment cross sectional data at the firm level is used by apllying parametric and semiparametric selection models it turns out that public funding increases firms r d expenditure altough the magnitude of the treatment effect depends on the assumpions imposed by the particular selection model

order submission strategy and the curious case of marketable limit orders we provide empirical evidence on order submission strategy of investors with similar commitments to trade by comparing the execution costs of market orders and marketable limit orders i e limit orders with the same trading priority as market orders the results indicate the unconditional trading costs of marketable limit orders are significantly greater than market orders we attribute the difference in costs to a selection bias and provide evidence suggesting the order submission strategy decision is based on prevailing market conditions and stock characteristics after correcting for the selection bias the results show the average trader chooses the order type with lower conditional trading costs

democracy as an equilibrium observation shows that while democracy is fragile in poor countries it is impregnable in developed ones to explain this pattern i develop a model in which political parties propose redistributions of incomes observe the result of an election and decide whether to comply with the outcome or to launch a struggle for dictatorship democracy prevails in developed societies because too much is at stake in turning against it more income can be redistributed in developed than in poor countries without threatening democracy limits on redistribution arise endogenously so that constitutions are not necessary for democracy to endure a democratic culture characterizes the equilibrium

the employer size wage gap evidence for britain university of edinburgh and university of sussexfinal version received 5 may 1992 this paper presents estimates for the employer plant size wage gap for britain using anordered probit model selectivity corrected wage equations are estimated for three plant sizecategories in a comparison between plants with more than 500 workers and those with lessthan 100 a wage gap estimate of over 17 per cent is detected the wage effects of unionizationin plants with more than 500 workers is reported as insignificant in contrast to evidenceprovided by idson and feaster 1990 for the united states no evidence of non randomsorting of workers across plant size is detected

do efficiency wages explain dismissals this study modifies rebitzer s 1987 model of efficiency wages to predict dismissal from employment using a sample selection method and data from australian workplaces the analysis supports the predictions that both very high and very low levels of required effort loose labour markets and high dismissals costs are associated with fewer dismissals among other results we find extensive internal labour markets and active unions reduce dismissals the evidence suggests that large employers rely more heavily on dismissals to motivate employees although such employers screen more effectively and so exhibit lower dismissal rates jel j24 j41 j42

a model to evaluate acquisition price and quantity of used products for remanufacturing abstract in this paper an analytical model is proposed to evaluate optimal acquisition price and quantity policy based on the quality of returned used products that are subsequently used for remanufacturing the model is developed from the perspective of a consolidation center which facilitates the collection of used products in various collection centers by offering an acquisition price based on the quality of used products receive all of the collected used products and consolidate them with replacement parts before sending the consignment to the remanufacturer it is assumed that the consolidation center receives an order from the remanufacturer for a set quantity and an associated price for used products in a quality level the consolidation center then evaluates optimal acquisition price and quantity policy for used products based on the available information on stochastic return quantity and quality and the cost of predefined set of replacement parts the policy so obtained is offered to the collection centers to initiate the collection of used products in their respective area of operation the impact of the model is studied through a numerical study the authors believe that the model developed here is the first such pricing model in a reverse logistics setting

the effect of remanufacturing on procurement decisions for resellers in secondary markets the role of remanufacturing as a competitive tool for firms has been reflected in a number of studies to show that remanufacturing can reduce the unit cost of production by reusing components however the fact that remanufacturing can be used as a strategic tool for serving secondary markets as well has not been acknowledged in the literature in this paper we study the use of remanufacturing as a tool to serve secondary markets specifically we model the case of a reseller who procures used products based on an older generation of technology from an advanced market and then uses one of two options a she can either resell a small fraction of these used products in a developing market where the technology is acceptable or b she can invest in the remanufacturing of these products and then sell them in the developing market at a higher price the main result of the paper is that using remanufacturing to serve secondary markets reduces the number of units procured from the advanced market for the reseller in addition we show based on certain cost structures that the reseller is always better off if she uses remanufacturing to a certain extent

intrafirm trade arm s length transfer pricing rule and coordination failure abstract this paper demonstrates that uniform imposition of the arm s length principle on transfer pricing leads to coordination failure among countries in terms of economic welfare if the countries trade products in the form of intrafirm transactions by multinational firms mnfs to highlight this implication we first show that imposition of the arm s length principle on an mnf induces it to transfer a product among subordinate divisions at marginal cost i e the competitive price which is consistent with the purpose of the principle nonetheless if regulators in each country impose the principle on mnfs all of the following economic welfare measures decrease compared with the situation where the principle is not imposed 1 consumer welfare in each of the trading countries 2 profit of each mnf and thus 3 total world economic welfare this result indicates that it is possible that enforcement of the principle has no positive effect at all in the world because economic welfare of all economic agents deteriorates when the principle is imposed a numerical analysis demonstrates that this possibility arises in a broad range of circumstances even including the situation where a giant economic world power and a small underdeveloped country mutually trade products in these circumstances an agreement among trading countries that no country imposes the arm s length principle may encourage pareto improvement of the world economy

in search of liquidity block trades in the upstairs and downstairs markets we analyze the ability of various market mechanisms to provide liquidity for large equity trades using data on 21 077 block transactions in dow jones stocks we find that the down stairs nyse floor market is a significant source of liquidity although negotiation in the informal upstairs market provides better execution than the downstairs market for large trades these differences are economically small we find however that upstairs markets are used by traders who can credibly signal that their trades are liquidity motivated thus upstairs markets allow trades that may not otherwise occur article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

regime and leader instability under two forms of military rule the finding that military regimes are more fragile than other authoritarian regimes represents one of the few stylized facts in comparative politics however the existing literature contains subst

supply chain design for unlocking the value of remanufacturing under uncertainty abstract owing to the technological innovations and the changing consumer perceptions remanufacturing has gained vast economic potential in the past decade nevertheless major oems in a variety of sectors remain reluctant about establishing their own remanufacturing capability and use recycling as a means to satisfy the extended producer responsibility their main concerns seem to be the potential for the cannibalization of their primary market by remanufactured products and the uncertainty in the return stream in terms of its volume and quality this paper aims at assisting oems in the development of their remanufacturing strategy with an outlook of pursuing the opportunities presented by the inherent uncertainties we present a two stage stochastic closed loop supply chain design model that incorporates the uncertainties in the market size the return volume as well as the quality of the returns the proposed framework also explicitly represents the difference in customer valuations of the new and the remanufactured products the arising stochastic mixed integer quadratic program is not amenable to solution via commercial software therefore we develop a solution procedure by integrating sample average approximation with the integer l shaped method in order to gather solid managerial insights we present a case study based on bsh a leading producer of home appliances headquartered in germany our analysis reveals that while the reverse network configuration is rather robust the extent of the firm s involvement in remanufacturing is quite sensitive to the costs associated with each product recovery option as well as the relative valuation of the remanufactured products by the customers in the context of the bsh case we find that among the sources of uncertainty the market size has the most profound effect on the overall profitability and it is desirable to build sufficient expansion flexibility in the forward network configuration

managing new and differentiated remanufactured products we study a firm that makes new products in the first period and uses returned cores to make remanufactured products along with new products in future periods the remanufactured product is differentiated from the new product so the firm needs to choose differentiated prices we analyze the monopoly environment in two period multi period three four and five and infinite planning horizons and characterize the optimal remanufacturing and pricing strategy for the firm in the process we identify remanufacturing savings thresholds that determine the production and pricing strategy for the firm among other results we find counter to intuition that in a finite horizon multi period setting the optimal policy is not necessarily monotone in remanufacturing savings

optimal strategies for trade old for remanufactured programs receptivity durability and subsidy due to its environmental financial and marketing benefits businesses and governments have increasingly embraced remanufacturing however the weak demand for remanufactured reman product severely hinders the implementation of remanufacturing lately trade old for remanufactured tor programs are growing in popularity as they can boost reman product demand in this paper we investigate the conditions when a firm should offer a tor program and how to best implement it our main findings are 1 firms should offer tor programs only when reman product receptivity and new product durability satisfy a certain condition 2 in addition to the reman product receptivity the new product durability also plays a significant role in motivating consumers to participate in tor programs and finally 3 high product remanufacturability and government subsidies are strong incentives for firms to offer their tor programs our analysis provides insights for firms and governments on how to use tor programs to benefit businesses consumers and the environment

durable goods leasing in the presence of exporting used products to an international secondary market abstract with the rapid growth of global trade used durable goods from wealthy countries increasingly find their way into the secondary market of less wealthy countries exporting used products to a physically separate market not only removes cannibalization for new products at home but also fetches additional revenue in this paper we investigate the implications of exporting used products to international secondary markets in the durable goods industry we find that such a practice may significantly stimulate new product lease on the home market an effect in which the market attractiveness and product quality are mutually reinforcing we discover that removing cannibalization pressure is more of a priority than generating additional revenue while exporting used products if the export is carried out by an agent who exports used products bought from oem original equipment manufacturer we observe the disadvantage of double marginalization in a channel structure which slows down export and causes quantity distortion and also reduces the effectiveness of government stimulus however if the agent and oem set export price based supply and demand equilibrium this reduces the quantity distortion one special characteristic of used products trade across borders is the involvement of governments on both sides of the border the government measures include penalties imposed on aging durable goods and trade barriers we find that legislation of penalizing used products on the domestic market can stimulate export but it does not have an intended effect of stimulating new products produced at home the channel structure worsens the problem

self enforcing democracy author s fearon james abstract if democracy is to have any of the good effects said to justify it it must be self enforcing those who control the government must want to hold regular competitive elections for the highest offices and all parties must be willing to comply with the results i consider a model in which citizens can always protest or rebel against the current ruler but can unseat the ruler only if enough people rebel when individuals privately observe a signal of the government s performance e g their own welfare they face a difficult problem of how to coordinate to pose a credible threat of rebellion necessary to keep the ruler from stealing further if the signals are noisy inefficient rebellions must occur in equilibrium to keep the ruler honest allowing for the possibility of elections makes for equilibria that eliminate both problems the convention of holding elections at particular times provides a public signal for coordinating rebellion in the event that elections are suspended of blatantly rigged the electoral results themselves aggregate private information about the ruler s performance providing the ruler an incentive to stick to the terms int he case of noisy signals of government performance the electoral results act as a cheap talk signal that allows the public to commit to rebel if a losing ruler does not step down avoiding the need for costly rebellions these arguments pose an explanation for self enforcing democracy whereas the several models in the literature do not because they do not explain why anyone would want to use elections to allocate power

does risk matter the case of wage labour allocation by owner cultivators this study analyses the impact of revenue risk on the hiring out behaviour of owner cultivators since hiring out is not certain labour market risk is also allowed for a large sample of owner cultivators residing in semi arid regions in india and hence subject to high production and labour market risks is used for this purpose it is found that possibly because production risks carry forward into the local labour market households are unable to use the labour market as a hedge against production risk we also find that labour force participation is positively affected by increases in the real wage rate a result that is contrary to the findings of earlier studies using data from less developed agriculture several other insights also result

a generalized ordering and recovery policy for reusable items this paper deals with a joint eoq and epq model in which a stationary demand is satisfied by recovered products as well as newly purchased products it is assumed that a fixed proportion of the used products are collected from customers and later recovered for reuse we generalize the p r policy in the literature by treating the sequence of orders for newly purchasing products and setups for recovery process within a cycle as a decision variable through example problems we illustrate the validity of the model and solution procedure developed

competitive advantage through take back of used products abstract motivated by a recent antitrust ruling against hill rom one of the two dominant american suppliers of hospital beds we develop a stylized model to investigate the consequences of used product take back on firms industry and customers our findings suggest that by taking back and reselling refurbished products a manufacturer can increase both profit margins and sales to the detriment of a non interfering competitor in our model customers are always better off under product take back but it depends on the degree of competition whether firms use the benefits of take back primarily to increase their margins or to pass them on to the customers by lowering their prices the first firm to offer take back in some cases can deter its competitors from following this profitable strategy especially if it has an existing advantage in terms of lower production cost or higher market share contrary to the claim of hill rom s competitor we find a legitimate business justification for hill rom s reduction of new product prices

child support welfare dependency and poverty female headed families have among the highest poverty rates of any major demographic group in the united states the purpose of this paperis to investigate empirically the effectiveness of current child support enforcement policies and to determine their role in reducing poverty and welfare dependency a special supplement to the april 1982 current population survey provides the data for the analysis the results indicate that child support enforce ment may represent an effective means for re ducing welfare program costs but isunlikely to have a dramatic effect on either welfare de pendency or poverty copyright 1986 by american economic association

exploring the relationship between the markets for new and used durable goods the case of automobiles given that durable products are long lived there exists the possibility of secondary markets for used products as well as the potential for product obsolescence this is an important issue in markets where technology changes rapidly because the introduction of new versions of a product can make earlier versions obsolete more generally prices of older versions in the secondary market adjust in response to changes incorporated in new versions of the product thus another method of evaluating consumers response to a new product is by looking at the variation in market prices of the old product this paper develops a general model to explore the relationship between primary markets for new cars and secondary markets for used cars the results suggest that the depreciation of used cars is influenced strongly by the types of changes in new model cars

designing a family of development intensive products faced with fragmented markets saturated and demanding customers and global competition firms increasingly must design and offer a line of innovative quality differentiated products to target customers with differing willingness to pay wtp in this context designing a special class of products that we term development intensive products dips for which the fixed costs of development far outweigh the unit variable costspresents some unique managerial challenges examples of such development intensive offerings abound in a number of industries including the pharmaceutical information and entertainment sectors of the economy our contributions in this paper are threefold a to show that managerial insights from the traditional approach to product line design developed for unit variable cost intensive products do not carry over to dips b to present new mechanisms and managerial guidelines for designing a family of products for which development costs cannot be ignored and c to illustrate the insights with an extended industry example we find that the design approach based on degrading or subtracting value from a high end product to obtain a subsumed low end edition shown in the literature to be an effective approach for designing unit cost intensive products can be inappropriate for dips this limitation of value subtraction has implications for the number of variants and the sequence in which they are developed as an alternative to a subsumed product design strategy we propose and examine the overlapped product design approach in which a low end product is not completely subsumed within its high end counterpart but differentiated on additional vertical quality dimensions our results both explain the recent challenges of firms with subsumed low end products and guide them in designing a product line to successfully address emerging low end market segments

managing new and remanufactured products we study a firm that makes new products in the first period and uses returned cores to offer remanufactured products along with new products in future periods we introduce the monopoly environment in two period and multiperiod scenarios to identify thresholds in remanufacturing operations next we focus our attention on the duopoly environment where an independent operator io may intercept cores of products made by the original equipment manufacturer oem to sell remanufactured products in future periods we characterize the production quantities associated with self selection and explore the effect of various parameters in the nash equilibrium among other results we find that if remanufacturing is very profitable the original equipment manufacturer may forgo some of the first period margin by lowering the price and selling additional units to increase the number of cores available for remanufacturing in future periods further as the threat of competition increases the oem is more likely to completely utilize all available cores offering the remanufactured products at a lower price

regime type the fate of leaders and war we propose and test a formal model of war and domestic politics building on recent evidence on the relationship between regime type the effect of war on the probability of losing office and the consequences of losing office the less the outcome of international interaction affects a leader s tenure and the less punitive are the consequences of losing office the more a leader is willing to make concessions to strike a peaceful bargain we demonstrate that our theory successfully predicts war involvement among nondemocratic regime types moreover our theory offers an intuitive explanation for the democratic peace compared to nondemocratic leaders the tenure of democratic leaders depends relatively little on the war outcome and democratic leaders fare relatively well after losing office thus democratic leaders should be more willing and able to avoid war especially with other democrats

housing purchases and transitory income a study with panel data in this paper we explore the role of transitory income in the housing purchase decision because of moral hazard considerations banks typically require downpayments to be financed internally hence transitory income is potentially important in overcoming the downpayment constraint using a novel approach to the measurement of permanent and transitory income we estimate a two stage model in which households decide whether to purchase housing in the first stage and the quantity to be purchased in the second the results indicate a significant role for transitory income in both decision stages

research note the role of production lead time and demand uncertainty in marketing durable goods firms often have to make their production decisions under conditions of demand uncertainty this is especially true for product categories such as automobiles and technology goods where the lead time needed for manufacturing forces firms to make production decisions well in advance of the selling season once the firm has produced the goods the available production volume affects the firm s subsequent marketing decisions in this paper we study the relationship between the firm s production and marketing decisions for a durable goods manufacturer we develop a dynamic model of a durable product market in which the demand functions are developed from a micromodeling of consumer utility functions and an equilibrium analysis of consumer strategies after taking into account the demand uncertainty as well as the potential for cannibalization of future sales the manufacturer makes its production and sales decisions we find that the firm s optimal inventory level is u shaped in the durability of the product and that the firm suffers a larger loss due to uncertainty when it is leases rather than sells its products furthermore unlike the case for nondurables for durable goods we find that the effect of uncertainty persists even after the uncertainty has been resolved