inventory and credit decisions for time varying deteriorating items with up stream and down stream trade credit financing by discounted cash flow analysis abstract in today s competitive markets most firms in united kingdom and united states offer their products on trade credit to stimulate sales and reduce inventory trade credit is calculated based on time value of money on the purchase cost i e discounted cash flow analysis recently many researchers use discounted cash flow analysis only on the purchase cost but not on the revenue which is significantly larger than the purchase cost and the other costs for a sound and rigorous analysis we should use discounted cash flow analysis on revenue and costs in addition expiration date for a deteriorating item e g bread milk and meat is an important factor in consumer s purchase decision however little attention has been paid to the effect of expiration date hence in this paper we establish a supplier retailer customer supply chain model in which a the retailer receives an up stream trade credit from the supplier while grants a down stream trade credit to customers b the deterioration rate is non decreasing over time and near 100 percent particularly close to its expiration date and c discounted cash flow analysis is adopted for calculating all relevant factors revenue and costs the proposed model is an extension of more than 20 previous papers we then demonstrate that the retailer s optimal credit period and cycle time not only exist but also are unique thus the search of the optimal solution reduces to a local one finally we run several numerical examples to illustrate the problem and gain managerial insights

home country supportiveness unfavorableness and outward foreign direct investment from china what drives the outward foreign direct investments ofdis by emerging market firms emfs drawing on a strategy tripod framework this article proposes a theoretical model to predict ofdi by emfs from china specifically we use institution and industry based views to examine two facets of home country environment namely the supportiveness from home government and unfavorableness from home industry as important determinants of ofdi and compare the relative strength of these effects further we use the resource based view to argue that the effect of the home country environment is contingent on the international experience portfolios of emfs

down with mne centric theories market entry and expansion as the bundling of mne and local assets both anderson and gatignon and the uppsala internationalization model see the initial mode of foreign market entry and subsequent modes of operation as unilaterally determined by multinational enterprises mnes arbitraging control and risk and increasing their commitment as they gain experience in the target market oli and internalization models do recognize that foreign market entry requires the bundling of mne and complementary local assets which they call location or country specific advantages but implicitly assume that those assets are freely accessible to mnes in contrast to both of these mne centric views i explicitly consider the transactional characteristics of complementary local assets and model foreign market entry as the optimal assignment of equity between their owners and mnes by looking at the relative efficiency of the different markets in which mne and complementary local assets are traded and at how these two categories of assets match i am able to predict whether equity will be held by mnes or by local firms or shared between them and whether mnes will enter through greenfields brownfields or acquisitions the bundling model i propose has interesting implications for the evolution of the mne footprint in host countries and for the reasons behind the emergence of dragon mnes

governments as owners state owned multinational companies the globalization of state owned multinational companies somncs has become an important phenomenon in international business ib yet it has received scant attention in the literature we explain how the analysis of somncs can help advance the literature by extending our understanding of state owned firms soes and multinational companies mncs in at least two ways first we cross fertilize the ib and soes literatures in their analysis of foreign investment behavior and introduce two arguments the extraterritoriality argument which helps explain how the mnc dimension of somncs extends the soe literature and the non business internationalization argument which helps explain how the soe dimension of somncs extends the mnc literature second we analyze how the study of somncs can help develop new insights of theories of firm behavior in this respect we introduce five arguments the triple agency conflict argument in agency theory the owner risk argument in transaction costs economics the advantage and disadvantage of ownership argument in the resource based view rbv the power escape argument in resource dependence theory and the illegitimate ownership argument in neo institutional theory after our analysis we introduce the papers in the special issue that collectively reflect diverse and sophisticated research interest in the topic of somncs

do we really need more entry mode studies this commentary s title is not meant to be a rhetorical question in congratulating brouthers 2002 for the jibs decade award we have an opportunity to assess where we are within this field of inquiry and what is our trajectory i believe that we have accomplished a lot in this area of study nevertheless i am concerned about its current trajectory so much so that i think we should seriously question whether we need more entry mode studies especially if we are going to get more of the same

state capitalism and performance persistence of business group affiliated firms a comparative study of china and india business groups emerged in developing economies through direct or indirect support from the state in order to overcome a variety of institutional voids and or to further state objectives of economic growth however the efficacy of this organizational form and its associated governance structures have been debated given the dual possibility of business groups to allocate resources among its affiliates for cross subsidization or winner picking we argue that elements of the institutional environment comprising of the state s approach to organizations and the political context of these interactions vary across countries thereby influencing business groups resource allocation strategies and affecting the persistence of affiliated firms superior performance contrasting the types of state capitalism in china and india we develop and test our hypotheses we find that the effect of business group affiliation on firms superior performance persistence is stronger in a state led system of state capitalism e g china than in a co governed system e g india and that this divergence of the business group effect is weakened as affiliated firms internationalize our findings have implications for understanding business groups across institutional contexts and the influence of diversity in the types of state capitalism on organizational strategies

a production lot size inventory model for deteriorating items and arbitrary production and demand rates abstract in this paper we present a method for finding the optimal replenishment schedule for the production lot size model with deteriorating items where demand and production are allowed to vary with time in an arbitrary way and in which shortages are allowed the method is illustrated by a numerical example

overcoming distrust how state owned enterprises adapt their foreign entries to institutional pressures abroad state owned so enterprises are subject to more complex institutional pressures in host countries than private firms these institutional pressures arise from a weak legitimacy of state ownership in some countries which arises from a combination of ideological conflicts perceived threats to national security and claimed unfair competitive advantage due to support by the home country government these institutional pressures directed specifically at so firms induce them to adapt their foreign entry strategies to reduce potential conflicts and to enhance their legitimacy testing hypotheses derived from this theoretical argument for subsidiaries of listed chinese firms we find that so firms adapt mode and control decisions differently from private firms to the conditions in host countries and these differences are larger where pressures for legitimacy on so firms are stronger these findings not only extend institutional theory to better explain differential effects on different entrants to an organizational field but demonstrate how foreign investors of idiosyncratic origins may proactively build legitimacy in host societies

an eoq model with noninstantaneous receipt and exponentially deteriorating items under two level trade credit abstract this paper considers the impact of the trade credit policy on the classical economic production quantity epq model for an item subject to exponential decays essentially this study focuses on an exponentially deteriorating item under the conditions of the retailer receiving the supplier trade credit and providing the customer trade credit simultaneously so as to minimize the average total cost a theorem is developed to determine the optimal replenishment policies the main contribution to literature is the inclusion of the latter type of payment delay finally through numerical examples sensitive analysis shows the influence of key model parameters

state ownership effect on firms fdi ownership decisions under institutional pressure a study of chinese outward investing firms this study investigates the effect of state ownership on chinese firms foreign direct investment fdi ownership decisions it adopts a political perspective to extend the application of institutional theory in international business research specifically it examines firms heterogeneous responses to external institutional processes during foreign market entry while taking into consideration the political affiliation of firms with the external institutions we argue that state ownership creates the political affiliation of a firm with its home country government which increases the firm s resource dependence on home country institutions while at the same time influencing its image as perceived by host country institutional constituents such resource dependence and political perception increase firms tendency to conform to rather than resist isomorphic institutional pressures we tested our hypotheses using primary data for 132 fdi entries made by chinese firms during 2000 2006 and we found that the effects of home regulatory host regulatory and host normative pressures on a firm to choose a joint ownership structure were stronger when the share of equity held by state entities in the firm was high

extending the theory of the multinational enterprise internalization and strategic management perspectives this paper assesses the continued relevance of buckley and casson s 1976 book on the future of the multinational enterprise mne against a background of increasing criticism of transaction cost related scholarly work we demonstrate that the schism that can currently be observed in the field between international business and international management is misguided as the transaction cost internalization school may offer useful insights to both management scholars and managers for this to occur however it is necessary first to extend the empirical scope of transaction cost based reasoning to include the functioning of differentiated network mnes the paper suggests that buckley and casson s book still represents a beacon of clarity and a superb starting point for the study of the mne even if the complexity of this governance structure has grown far beyond what any international business scholar or even international management scholar could have predicted 25 years ago

wavelet based test of co movement and causality between oil and renewable energy stock prices abstract we studied co movement and causality between oil and renewable energy stock prices using continuous and discrete wavelets firstly to obtain information on dynamic correlations over time and for different time scales from wavelet coherence and secondly to obtain information on linear and non linear granger causality in the time frequency domain for general and sectoral renewable energy indices for the period 2006 2015 our findings indicate that dependence between oil and renewable energy returns in the short run was weak but gradually strengthened towards the long run mainly for the period 2008 2012 our causality tests provide evidence against linear causality at higher frequencies and in favour of unidirectional and bidirectional linear causality at lower frequencies in contrast we found consistent evidence of non linear causality running from renewable energy indices to oil prices at different time horizons and mixed evidence of causality running from oil to renewable energy prices these results have potential implications for investors in terms of hedging and for policymakers in terms of policy support decisions regarding the development of renewable energy

oil price shocks and stock markets in the u s and 13 european countries abstract oil price shocks have a statistically significant impact on real stock returns contemporaneously and or within the following month in the u s and 13 european countries over 1986 1 2005 12 norway as an oil exporter shows a statistically significantly positive response of real stock returns to an oil price increase the median result from variance decomposition analysis is that oil price shocks account for a statistically significant 6 of the volatility in real stock returns for many european countries but not for the u s increased volatility of oil prices significantly depresses real stock returns the contribution of oil price shocks to variability in real stock returns in the u s and most other countries is greater than that of interest rate an increase in real oil price is associated with a significant increase in the short term interest rate in the u s and eight out of 13 european countries within one or two months counter to findings for the u s and for norway there is little evidence of asymmetric effects on real stock returns of positive and negative oil price shocks for oil importing european countries

a century of evolution from harris s basic lot size model survey and research agenda abstract determining the economic lot size has always represented one of the most important issues in production planning this problem has long attracted the attention of researchers and several models have been developed to meet requirements at minimum cost in this paper we explore and discuss the evolution of these models during one hundred years of history starting from the basic model developed by harris in 1913 up to today following harris s work a number of researchers have devised extensions that incorporate additional considerations the evolution of eoq theory strongly reflects the development of industrial systems over the past century here we outline all the research areas faced in the past by conducting a holistic analysis of 219 selected journal papers and trying to give a comprehensive view of past work on the eoq problem finally a new research agenda is proposed and discussed

wavelet decomposition and regime shifts assessing the effects of crude oil shocks on stock market returns while there is a large body of empirical studies on the relationship between crude oil price changes and stock market returns they have failed to achieve a consensus on this subject in this paper we combine wavelet analysis and markov switching vector autoregressive ms var approach to explore the impact of the crude oil co shocks on the stock market returns for uk france and japan over the period from january 1989 to december 2007 our procedure involves the estimation of the extended ms var model in order to investigate the importance of the resultant wavelet filtering series after removing random components in determining the behavior of the stock market volatilities we show that co shocks do not affect the recession stock market phases except for japan however they significantly reduce moderate and or expansion stock market phases temporarily moreover this negative relationship appears to be more pronounced during the pre 1999 period the empirical findings will prove extremely useful to investors who need to understand the exact effect of international oil changes on certain stocks prices as well as for policy managers who need a more thorough evaluation about the efficiency of hedging policies affected by oil price changes

crude oil and stock markets stability instability and bubbles abstract we analyze the long run relationship between the world price of crude oil and international stock markets over 1971 1 2008 3 using a cointegrated vector error correction model with additional regressors allowing for endogenously identified breaks in the cointegrating and error correction matrices we find evidence for breaks after 1980 5 1988 1 and 1999 9 there is a clear long run relationship between these series for six oecd countries for 1971 1 1980 5 and 1988 2 1999 9 suggesting that stock market indices respond negatively to increases in the oil price in the long run during 1980 6 1988 1 we find relationships that are not statistically significantly different from either zero or from the relationships of the previous period the expected negative long run relationship appears to disintegrate after 1999 9 this finding supports a conjecture of change in the relationship between real oil price and real stock prices in the last decade compared to earlier years which may suggest the presence of several stock market bubbles and or oil price bubbles since the turn of the century

privatization and efficiency from principals and agents to political economy ad i pavia abstract we survey the theoretical literature on privatization and efficiency by tracing its evolution from the applications of agency theory to recent contributions in the field of political economy the former extend the theory of regulation with incomplete information to address privatization issues comparing state owned enterprises with private regulated firms the benefits of privatization may derive either from the constraints it places on malevolent agents or from the impossibility of commitment by a benevolent government because of incomplete contracts contributions dealing with political economy issues separate privatization from restructuring decisions they either explore bargaining between managers and politicians or analyse the impact of privatization shaped by political preferences on efficiency the theoretical results regarding the relation between privatization and efficiency do not lead to any definitive conclusion privatization may increase productive efficiency when restructuring takes place whereas its effects on allocative efficiency still remain uncertain

a returns policy for distribution channel coordination of perishable items abstract this paper deals with a retailer s operating policies for a perishable product when he agrees with his supplier not to return the unsold product to his supplier provided that the supplier gives some discount on the wholesale price mathematical formulations are developed based on a periodic review inventory model under lifo and fifo issuing policies the demand rate is assumed to be a function of the retail price and instantaneous inventory level decision variables are the amount of supplier s price discount that the retailer can accept in return for adopting the no returns condition the retail price and order size also numerical examples are solved with tabu search algorithm for sensitivity analysis

the effect of cultural distance on entry mode choice international diversification and mne performance a meta analysis although a growing literature indicates that cultural distance that is differences between national cultures is an important determinant of organizational actions and performance both empirical and theoretical concerns abound in this study the relationships of cultural distance with entry mode choice international diversification and mne performance are examined by meta analyzing data from 66 independent samples with cumulative sample sizes ranging from 2 255 to 24 152 regression results failed to provide statistical evidence of significant relationships between cultural distance and entry mode choice international diversification and mne performance the examination of moderator effects however yielded important results we found a strong negative association between cultural distance and entry mode choice for us based mnes the cultural distance international diversification relationship was negative for high technology industries while it was positive for other industries cultural distance also had a strong positive effect on mne performance for developed country investments a similar strong positive relationship was found between cultural distance and international diversification in studies with more recent samples results of this study indicate that substantial additional research is needed before the role of cultural distance is fully understood

resource security competition for global resources strategic intent and governments as owners we develop a resource security theory by examining the intent of acquisitions of scarce resources by multinational firms results suggest that owners of firms can shape the intent of resource acquisitions specifically state owned enterprises soes tend to acquire and pay more for resources for exploration rather than exploitation this is because soes owners governments are most concerned with securing their country s future we contribute to the literature by suggesting that ownership influences resource acquisitions that resource security is of importance to multinational enterprises and that soes invest abroad to safeguard both their own and their home countries future

the limits of explanation testing the internalization theory of the multinationial enterprise the paper explores the difficulties of testing the internalization approach in the modern theory of the multinational enterprise the structure of the theory is elaborated and the conclusion drawn that testing cannot occur at the most general theoretical level but that the theory requires careful restricting assumptions to be placed on it to allow rigorous testing several empirical circumstances would constitute refutation if they could be shown to hold however the use of unconventional cases or outliers does not constitute disproof more rigour is required in formulating and testing the theory but the current verdict on the theory must be not disproven

global value chain governance a relational perspective global value chain gvc governance is an established field within international business research yet the relational aspects of gvcs have to date garnered less scholarly attention than have efficiency considerations this conceptual study s objective is to explore the relational dynamics of gvc governance using an internalization theory perspective and by linking gvc research with insights from the business network literature gvcs are argued to be a distinct form of asymmetrical networks associated with economizing and capability creation features as well as costs the orchestrating firm can thus enhance efficiency outcomes of the gvc using social mechanisms similar to those adopted by core actors in a business network in the study six such mechanisms were identified 1 selectivity 2 inclusion of non business intermediaries 3 joint strategizing 4 relational capital 5 multilateral feedback and 6 rules for equitable value distribution while safeguarding the gvc s efficiency the above social mechanisms are associated with challenges and limitations and therefore do not guarantee international competitive success however deployed in an integrative fashion these social mechanisms facilitate coordination thus economizing on bounded rationality reduce the hazards of imperfect effort by partners thus economizing on bounded reliability and foster innovation and new capability development

entry mode deviation a behavioral approach to internalization theory we explore when and why decision makers choose international entry modes e g hierarchies or markets that deviate from internalization theory s predictions by applying a cognitive perspective on entry mode decision making we propose that the performance of prior international activities influences decision makers behavior in different ways than assumed in internalization theory more specifically due to a representativeness bias underperforming overperforming past ventures influence the decision to change continue using the previous entry mode choice which may result in an entry mode deviation in addition the propensity to deviate from theoretical predictions is stronger when the experience is recent and or salient due to an availability bias in conclusion we argue that internalization theory can benefit from incorporating more systematically important behavioral assumptions on how firms enter international markets in so doing we contribute to the recent conversation on how variations in human behavior influence internalization theory

the proper scope of government theory and an application to prisons when should a government provide a service in house and when should it contract out provision we develop a model in which the provider can invest in improving the quality of service or reducing cost if contracts are incomplete the private provider has a stronger incentive to engage in both quality improvement and cost reduction than a government employee has however the private contractor s incentive to engage in cost reduction is typically too strong because he ignores the adverse effect on noncontractible quality the model is applied to understanding the costs and benefits of prison privatization

does oil move equity prices a global view many studies indicate that oil price shocks have an adverse effect on real output and hence an adverse effect on corporate profits where oil is used as a key input the present study examines whether and to what extent the adverse effect of oil price shocks impacts stock market returns to this end we analyse 35 datastream global industry indices for the period from april 1983 to september 2005 our findings indicate that oil price rises have a negative impact on equity returns for all sectors except mining and oil and gas industries generally these results are consistent with economic theory and evidence provided by previous empirical studies little evidence of any asymmetry is detected in the oil price sensitivities in light of our findings we recommend that international portfolio investors consider hedging oil price risk

an eoq model with partial backordering and advance payments for an evaporating item abstract in the classic economic order quantity model the purchasing cost of an order is paid at the time of its receipt in some cases retailers ask purchasers to pay all or a fraction of the purchasing cost in advance and may allow them to divide the prepayment into several equal sized parts in this paper an economic order quantity model for an evaporating item with partial backordering and partial consecutive prepayments is developed with a real case study of a gasoline station real numerical examples illustrate the proposed model and the solution method

integrating deterioration and lifetime constraints in production and supply chain planning a survey abstract items with short lifetimes that are subject to deterioration are important in the business world research has a long tradition in integrating deterioration and value loss effects into mathematical models for inventory planning and control where such effects are understood as a general loss or shrinkage of inventory however there has been little work in the modeling of lifetime restrictions of items to prevent wastage and disposals especially in a dynamic planning context globalization and other trends extend the consideration of single companies to whole supply chains implying increased coordination and information needs this is important as planning decisions impact lead times and thus the quality of items in the whole supply chain products that exceed their useful lifetime can impose high costs due to inventory loss or the need to rework them this implies increased utilization of scarce resources e g machine time metals and or energy thereby increasing co 2 levels we survey the state of the art regarding depreciation effects and the modeling of lifetime constraints as well as a classification of models following business planning functions of the value chain a critical evaluation of approaches and their limitations is provided highlighting directions for future research

review of inventory systems with deterioration since 2001 abstract this paper presents an up to date review of the advances made in the field of inventory control of perishable items deteriorating inventory the last extensive review on this topic dates back to 2001 goyal s k and giri b c recent trends in modeling of deteriorating inventory european journal of operational research 134 1 16 since then over two hundred articles on this subject have been published in the major journals on inventory control indicating the need for a new review we use the classification of goyal and giri based on shelf life characteristics and demand characteristics contributions are highlighted by discussing main system characteristics including price discounts backordering or lost sales single or multiple items one or two warehouses single or multi echelon average cost or discounted cash flow and payment delay

optimal inventory policy with noninstantaneous receipt under trade credit abstract in the last two decades the models for inventory replenishment policies under trade credit have been widely studied by several researchers however the extant papers only consider the effects of permissible delay in payments in the inventory systems in some situations the supplier also may offer a cash discount to encourage retailer to pay for his purchases quickly on the other hand an inventory model with instantaneous receipt is not a common feature in actual practice for generality this study develops an inventory model with noninstantaneous receipt under trade credit in which the supplier provides not only a permissible delay but also a cash discount to the retailer we then characterize the optimal solution and provide an easy to use criterion to find the optimal order strategies finally several numerical examples are presented to illustrate the theoretical results

internalization advantage and subsidiary performance the role of business group affiliation and host country characteristics we extend internalization theory by examining the contingencies associated with market internalization and its impact on foreign subsidiary survival based on a sample of 6170 subsidiary year observations in 63 countries belonging to 292 mncs from korea during 1995 2013 we find that greater product and labor market internalization have weaker impacts on the survival of subsidiaries operating in countries with more developed institutional environments but stronger for subsidiaries of mncs affiliated with business groups the impact of business group affiliation is further dependent on host country institutional development and the diversification and size of the business group

inventory ordering policies of delayed deteriorating items under permissible delay in payments abstract the existing literature on inventory of deteriorating items considers deterioration to begin as soon as the items are stocked however there are several deteriorating items that do not start deteriorating immediately they are held in stock some farm produce like potatoes yams and even some fruits and vegetables have this property depletion of these items as soon as they are stocked will depend on demand and when deterioration begins it will depend on both demand and deterioration in this paper we develop a mathematical model on the inventory of deteriorating items that do not start deteriorating immediately they are stocked the model also takes into cognizance the fact that in business activities nowadays customers are given some allowed period within which to settle for the goods supplied to them they can use the accrued money from sales of the supplied goods to earn interest within the allowed period they are charged interest only when they fail to settle the amount they owe the supplier at the end of the allowed period

inventory models for deteriorating items with maximum lifetime under downstream partial trade credits to credit risk customers by discounted cash flow analysis abstract getting loans from banks are almost impossible after 2008 global financial crisis as a result about 80 of companies in united kingdom and united states offer their products on various short term free interest loans i e trade credit to customers numerous researchers and academicians apply discounted cash flow dcf analysis merely to compute the interest earned and charged during the credit period but not to the revenue and other costs which are considerably larger than the interest earned and charged for a rigorous analysis the dcf on all relevant costs is applied in addition many products deteriorate continuously and cannot be sold after their maximum lifetimes or expiration dates however very few researchers and investigators have implemented the product lifetime expectance into their models in this paper a supplier retailer customer chain system is developed in which the retailer gets an upstream full trade credit from the supplier whereas offers a downstream partial trade credit to credit risk customers the deterioration rate is non decreasing over time and near 100 particularly close to its expiration date and dcf analysis is applied to compute all relevant costs this paper demonstrates that the retailer s optimal replenishment cycle time not only exists but also is unique thus the search of the global optimal reduces to finding a local solution finally several numerical examples and sensitivity analysis are performed in order to illustrate the problem and obtain managerial insights

on the dynamic links between commodities and islamic equity abstract this paper investigates whether commodities offer potential diversification benefits for islamic equity index investors in light of possible financialization of commodity markets using mgarch dcc and wavelet coherence analyses our findings reveal that correlations between commodity markets and the dow jones islamic market world index are time varying and highly volatile throughout the january 1999 april 2015 period a substantial and persistent increase was observed in the return correlations between commodities and islamic equity at the onset of the 2008 financial crisis however trends in the recent two years suggest that this association is heading towards its pre crisis levels offering again diversification benefits for islamic equity holders these benefits vary across different commodities in various time scales overall gold natural gas soft commodities grains and livestock are better portfolio diversifiers than oil and other metals relative to medium to long term investors short term investors less than 32 days horizon gained better diversification benefits in most commodities during bullish bearish and market recovery periods these findings have implications for investors who are heterogeneous in risk tolerance and time preference as well as for policymakers who are concerned with market stability

exogenous oil supply shocks how big are they and how much do they matter for the u s economy abstract the paper proposes a new measure of exogenous oil supply shocks the timing the magnitude and the sign of this measure may differ greatly from current state of the art estimates it is shown that only a small fraction of the observed oil price increases during oil crisis periods can be attributed to exogenous oil production disruptions exogenous oil supply shocks cause a sharp drop of u s real gdp growth after five quarters rather than an immediate and sustained reduction in economic growth and a spike in cpi inflation after three quarters overall exogenous oil supply shocks made remarkably little difference for the evolution of the u s economy since the 1970s although they did matter for some historical episodes

towards a renaissance in international business research big questions grand challenges and the future of ib scholarship in this article we review critiques of international business ib research with a focus on whether ib scholarship tackles big questions we identify three major areas where ib scholars have addressed important global phenomena but find that they have had little influence outside of ib and only limited effects on business or government policy we propose a redirection of ib research towards grand challenges in global business and the use of interdisciplinary research methods multilevel approaches and phenomena driven perspectives to address those questions we argue that ib can play a more constructive and vital role by tackling expansive topics at the business societal interface

game theoretic pricing and ordering decisions with partial lost sales in two stage supply chains abstract few papers have studied the optimal pricing and ordering with partial lost sales from a two stage game theoretic perspective this paper considers a supply chain game with a buyer and a seller through pricing and ordering models with partial lost sales we evaluate the optimal solutions for the buyer and the seller and provide insights into both the deterministic and stochastic demand models we also propose search algorithms to obtain the global optimum when convexity and concavity conditions are not satisfied

oil price cycles and wavelets abstract the present paper addresses the question of the oil price macroeconomy relationship using world data and a time scale decomposition based on the theory of wavelets our approach is based on a global indicator the morgan stanley capital international msci index for the world and on the new framework offered by wavelets to analyse the oil price cycles and to investigate the oil price msci relationship this original approach enables us to identify that the cycles which contribute the most to oil price variations are 20 to 40 years cycles which correspond to the size of kuznets infrastructure cycles and probably represent energy investment cycles this wavelet decomposition also provides additional evidence to the reverse causality theory

firms fdi ownership the influence of government ownership and legislative connections the level of ownership in an overseas subsidiary has been an important issue in international business existing literature based on transaction cost theory predicts that firms prefer higher ownership for subsidiaries located in favorable foreign institutional environments we propose two moderating factors to this prediction governments as owners of firms and firms legislative connections we hypothesized that the level of subsidiary ownership was less affected by the heterogeneity of foreign institutional environments for firms with a higher level of government ownership and for firms with legislative connections these two interaction effects were tested using a sample of overseas subsidiaries documented in the 2010 annual reports of listed chinese firms the empirical findings provide robust support for the hypothesized effects this study offers fresh insight on the role of government and political factors in firms internationalization activities

the optimal ordering policy in a dcf analysis for deteriorating items when trade credit depends on the order quantity abstract in this paper an inventory system for deteriorating items under the conditions of using the discounted cash flows dcf approach to the permissible to delay payment will be considered as a matter of fact the supplier usually is willing to provide the retailer a permissible delay of payments if the retailer orders a large quantity as a result we consider that the delay in payments depends on the quantity ordered that is when the order quantity is less than that at which the delay in payments is permitted the payment for the item must be made immediately otherwise the fixed trade credit period is permitted this paper incorporates all concepts of a dcf approach and the trade credit linked to ordering quantity and develops a new inventory model for deteriorating items to generalize jaggi and aggarwal int j prod econ 34 1994 151

optimal production lot with imperfect production process under permissible delay in payments and complete backlogging abstract the traditional economic production quantity epq model assumes that the production products are all perfect it is not always true in the real production system due to imperfect production process or other factors imperfect quality items may be produced furthermore it is well known that the total production inventory costs can be reduced by reworking the imperfect quality items produced with a relatively smaller additional reworking and holding costs in addition the permissible delay in payments offered by the supplier is widely adopted in the practical business market in this study we explore the effects of the reworking imperfect quality items and trade credit on the epq model with imperfect production processes and complete backlogging a mathematical model which includes the reworking and shortage costs interest earned and interest charged is presented besides an arithmetic geometric mean inequality approach is employed and an algorithm is developed to find the optimal production policy furthermore some numerical examples and sensitivity analysis are provided to demonstrate the proposed model

state ownership and transparency in foreign direct investment we contribute to ib literature on state owned multinationals by examining an understudied element of mne strategy transparency drawing insight from accounting finance and political science we develop theory and hypotheses regarding ownership effects on fdi disclosure we argue that transparency of outward fdi depends on both state ownership and home and host country institutions we also posit that host governments harness their soes to exploit information disclosed by foreign mnes discouraging inward fdi transparency we test our hypotheses using a unique transaction level database from the global petroleum industry analyzing a sample of 965 investment disclosures across 81 developing and developed countries we find state ownership reduces mne transparency soes are less sensitive to host country political risk than private firms soes from better governed countries are more transparent and regardless of ownership foreign mnes are more opaque when investing in the presence of a host country soe

utilizing the broader agency perspective for studying headquarters subsidiary relations in multinational companies the nature of global business today increases the complexity of multinational companies and highlights the challenges of managing headquarters subsidiary hq sub relationships we identify key unresolved issues in hq sub relations including closing the gap between headquarters expectations and subsidiary performance managing the nested hierarchical relationships across multiple organizational layers and aligning these relationships across diverse subunits embedded in different social contexts we propose that agency theory particularly its more recent progressions can advance our understanding of these issues and we offer a perspective to guide such research we discuss several research implications of the static bilateral static multilateral dynamic and social and contextual streams of agency theory

a review of trade credit literature opportunities for research in operations abstract trade credit arises when a buyer delays payment for purchased goods or services its nature has predominantly been an area of inquiry for researchers from the disciplines of finance marketing and economics but it has received relatively little attention in other domains in our article we provide an integrative review of the existing literature and discuss conflicting study outcomes we organize the relevant literature into seven areas of inquiry and analyze four in detail trade credit motives order quantity decisions credit term decisions and settlement period decisions additionally we derive a detailed agenda for future research in these areas

optimal strategy for an integrated system with variable production rate when the freight rate and trade credit are both linked to the order quantity abstract this paper presents an integrated inventory model with variable production rate and price sensitive demand rate the buyer s purchases trade credit linked to the order quantity offered by the supplier in addition the buyer pays the freight charge according to a weight schedule this paper attempts to offer a best policy that aims at maximizing the joint total profit while the trade credit and freight rate are simultaneously linked to the order quantity the same policy also incorporates considerations on the optimal retail price order quantity and delivery decision we provide possible solutions for the buyer and the supplier to collaboratively agree on inventory control warehouse management transportation logistics delivery and billing our study demonstrates that significant profit increase for the entire supply chain can be achieved by linking both trade credit policy and freight rate policy to order quantities an algorithm is furnished to determine the optimal solution in addition numerical examples and sensitivity analysis are presented to illustrate the theoretical results

global value chains a review of the multi disciplinary literature this article reviews the rapidly growing domain of global value chain gvc research by analyzing several highly cited conceptual frameworks and then appraising gvc studies published in such disciplines as international business general management supply chain management operations management economic geography regional and development studies and international political economy building on gvc conceptual frameworks we conducted the review based on a comparative institutional perspective that encompasses critical governance issues at the micro gvc and macro levels our results indicate that some of these issues have garnered significantly more scholarly attention than others we suggest several future research topics such as microfoundations of gvc governance gvc mapping learning impact of lead firm ownership and strategy dynamics of gvc arrangements value creation and distribution financialization digitization the impact of renewed protectionism the impact of gvcs on their macro environment and chain level performance management

the viewpoint on optimal inventory policy with non instantaneous receipt under trade credit by ouyang teng chuang and chuang abstract ouyang et al 2005 international journal of production economics 98 290 300 develop an inventory model with non instantaneous receipt under trade credit in which the supplier provides not only a permissible delay but also a cash discount to the retailer they establish a criterion to find the optimal order cycle such that the total relevant cost per unit time is minimized although their inventory model is correct and interesting their solution procedure has shortcomings such that it cannot locate all optimal order cycles so the main purpose of this paper will remove the shortcoming of ouyang et al 2005 and present a solution procedure to search for the entirely optimal order cycles furthermore this paper reveals an example to show that ouyang et al s 2005 solution procedure does not work for locating the optimal order cycle to that example however our solution procedure does in sum this paper improves ouyang et al 2005

international corporate governance a review and opportunities for future research we review four decades of research about the corporate governance of multinational corporations mncs which we label international corporate governance icg we identify and discuss three main streams of research that draw on different conceptualizations and theoretical lenses of corporate governance after synthesizing their respective findings we propose several avenues for future research that integrate these three streams of research with the goal of developing a more nuanced understanding of icg we hope this review article will inspire international business scholars to continue examining how corporate governance can be an effective tool for mnc success

retailer s economic order quantity when the supplier offers conditionally permissible delay in payments link to order quantity abstract trade credit financing is increasingly recognized as an important strategy to increase profitability in inventory management we revisit an economic order quantity model under conditionally permissible delay in payments in which the supplier offers the retailer a fully permissible delay of m periods i e there is no interest charge until m if the retailer orders more than or equal to a predetermined quantity w however if the retailer s order quantity is less than w then the retailer must make a partial payment to the supplier and enjoy a permissible delay of m periods for the remaining balance in this paper we extend the mentioned eoq under conditionally permissible delay in payments to complement some shortcomings of the model by contrast to the differential calculus method we propose a simple arithmetic geometric method to solve the problem furthermore we establish some discrimination terms to identify the unique optimal solution among three alternatives and explain those theoretical results by simply economical interpretations finally we solve several numerical examples to illustrate the theoretical results and obtain some managerial implications

does ownership structure of emerging market firms affect their outward fdi the case of the indian automotive and pharmaceutical sectors this paper examines the impact of ownership structures of emerging market firms which are shaped by local institutions on the decision of these firms to undertake outward fdi our results suggest that family firms and firms with concentrated ownerships both ubiquitous in emerging markets are less likely to invest overseas and that strategic equity holding by foreign investors facilitates outward fdi we conclude that organisational forms such as family firms which are optimal outcomes of institutions prevailing in emerging markets may be suboptimal in a changing business environment in which outward fdi is necessary for access to resources and markets

fdi by firms from newly industrialised economies in emerging markets corporate governance entry mode and location previous studies emphasise that the foreign direct investment fdi strategies of firms from newly industrialised economies nies are different from the fdi strategies of firms from developed economies it has also been shown that nie firms are often controlled by founding families who make key strategic decisions and that they rely heavily on network linkages when developing their fdi strategies what is less clear however is how the corporate governance factors in nies the risk preferences of the main shareholder constituencies and the network based business culture affect the decision to undertake fdi in emerging markets this paper explores the entry mode and location choices of firms from an asian nie taiwan in an emerging market the people s republic of china it shows that the choice of equity stake in an affiliate depends upon the extent of family and institutional share ownerships in the parent company high commitment entry is found to be positively associated with the affiliate being located in areas with strong economic cultural and historic links with the parent company furthermore the entry mode and location decisions appear to be interrelated with the parent s equity stake in the affiliate depending inter alia upon the location within china and the favoured location depending inter alia upon the equity stake

separating bric using islamic stocks and crude oil dynamic conditional correlation and volatility spillover analysis abstract this paper explores the dynamic conditional correlation and volatility linkage between islamic indexes and oil for bric countries correlations between these assets increase during the global financial crisis for india and china but not for brazil and russia the volatility error forecast variance of all five indexes comes from spillover but is much lower compared to volatility spillover between conventional indexes and oil hedging performance of islamic indexes are superior in india and china compared to conventional indexes in emerging markets an optimal minimum variance portfolio without reducing expected return can be achieved by investing in lower weights of bric islamic indexes and oil compared to conventional indexes

on optimal payment time for a retailer under permitted delay of payment by the wholesaler abstract jamal et al 2000 optimal payment time for a retailer under permitted delay of payment by the wholesaler international journal of production economics 66 59 66 study a wholesaler retailer supply chain where the retailer is given a permissible credit period to pay back the dues without paying any interest to the wholesaler the problem is modeled as a cost minimization problem with two decision variables the payment time p of the retailer and the length of the inventory cycle t while the model represents in general an interesting problem we show in this note that there are a number of nontrivial flaws contained in the development of their model and therefore the solution they derived is not correct we give the correct model and derive the corresponding optimal solution

state owned mncs and host country expropriation risk the role of home state soft power and economic gunboat diplomacy expropriation risk has a binding effect on foreign direct investment fdi however state owned multinational corporations may counter the monopoly power of the host state by leveraging the political influence of their home government the magnitude of this counter force we argue may vary depending on the strength of political relations between the home and host state and the level of economic dependence of the host country on the home market we find supporting evidence of our hypotheses using chinese firm level fdi information between 2003 and 2010

optimal pricing and ordering policy under permissible delay in payments abstract many researchers have assumed that the selling price is the same as the purchase cost and developed various eoq models for a retailer when the supplier offers a permissible delay in payments in this paper we complement the shortcoming of their models by considering the difference between the selling price and the purchase cost we then develop an algorithm for a retailer to determine its optimal price and lot size simultaneously when the supplier offers a permissible delay in payments our theoretical result contradicts to their conclusion that the economic replenishment interval and order quantity generally increases marginally under the permissible delay in payments

joint price and lot size determination under conditions of permissible delay in payments and quantity discounts for freight cost abstract this paper deals with the problem of determining the retailer s optimal price and lot size simultaneously under conditions of permissible delay in payments it is assumed that the ordering cost consists of a fixed set up cost and a freight cost where the freight cost has a quantity discount offered due to the economies of scale the constant price elasticity demand function is adopted which is a decreasing function of retail price investigation of the properties of an optimal solution allows us to develop an algorithm whose validity is illustrated through an example problem

yes we really do need more entry mode studies a commentary on shaver in a recent commentary published in this journal shaver raises the provocative question of whether we need more entry mode studies after assessing the reasons for shaver s doubts and further developing his broad research suggestions we conclude that this question should be answered affirmatively we derive three important questions for future entry mode research 1 what determines the evolution of operations resulting from suboptimal mode choices 2 what causes the replication of past mode choices 3 how is the entry decision process structured focusing on these questions should assure a bright future for entry mode research

continuous review inventory model with delay in payments abstract in this paper we examine the continuous review inventory model under permissible delays in payments that is a retailer has the option of either paying for the goods immediately upon the receipt of the order or delay the payment till the next replenishment order where interest will be charged over the delay period expected demand will be assumed constant over time and the order lead time is considered random the objective is to find the optimal ordering quantity and reorder level that will maximize the vendor s total expected profit per unit time when payments are delayed

do structural oil market shocks affect stock prices abstract this paper investigates how explicit structural shocks that characterize the endogenous character of oil price changes affect stock market returns in a sample of eight countries australia canada france germany italy japan the united kingdom and the united states for each country the analysis proceeds in two steps first modifying the procedure of kilian kilian l forthcoming not all oil price shocks are alike disentangling demand and supply shocks in the crude oil market american economic review we employ a vector error correction or vector autoregressive model to decompose oil price changes into three components oil supply shocks global aggregate demand shocks and global oil demand shocks the last component relates to specific idiosyncratic features of the oil market such as changes in the precautionary demand concerning the uncertainty about the availability of future oil supplies second recovering the oil supply shocks global aggregate demand shocks and global oil demand shocks from the first analysis we then employ a vector autoregressive model to determine the effects of these structural shocks on the stock market returns in our sample of eight countries we find that international stock market returns do not respond in a large way to oil market shocks that is the significant effects that exist prove small in magnitude

the uppsala internationalization process model revisited from liability of foreignness to liability of outsidership the uppsala internationalization process model is revisited in the light of changes in business practices and theoretical advances that have been made since 1977 now the business environment is viewed as a web of relationships a network rather than as a neoclassical market with many independent suppliers and customers outsidership in relation to the relevant network more than psychic distance is the root of uncertainty the change mechanisms in the revised model are essentially the same as those in the original version although we add trust building and knowledge creation the latter to recognize the fact that new knowledge is developed in relationships

credit financing in economic ordering policies of deteriorating items this paper presents the economic ordering policies of deteriorating items in the presence of trade credit using a discounted cash flows dcf approach a dcf approach permits a proper recognition of the financial implication of the opportunity cost and out of pocket costs in inventory analysis it also permits an explicit recognition of the exact timing of cash flows associated with an inventory system a comprehensive sensitivity analysis has also been done

bringing corporate governance into internalization theory state ownership and foreign entry strategies we use internalization theory to analyze the establishment and entry mode decisions of state owned soe and privately owned poe enterprises we enrich internalization theory by building on insights from economic theory of corporate governance and taking into account particular characteristics of soes such as non economic motivations long term orientation and different risk preferences we examine foreign entries over a 10 year period in the canadian oil and gas industry this single country and single industry context features foreign soes and poes from a wide range of home countries allowing a focused study of the combined influence of state ownership and home country factors compared to poes soes tend to prefer acquiring stand alone assets rather than firms and to take lower ownership shares we also find that differences between soes and poes diminish when home countries are characterized by high government quality and market orientation and identify differences between types of soes with partially owned soes exhibiting behaviors more similar to poes than fully owned soes we demonstrate how our enrichment of internalization theory strengthens its predictive and explanatory capacity our results also show that soes from strong and market oriented institutional environments are similar to poes and can be studied using the traditional internalization theory

bureaucracy and growth a cross national analysis of the effects of weberian state structures on economic growth the role of bureaucratic authority structures in facilitating economic growth has been a sociological concern since max weber s classic contributions almost 100 years ago using a recent and original data set we examine the characteristics of core state economic agencies and the growth records of a sample of 35 developing countries for the 1970 1990 period our weberianness scale offers a simple measure of the degree to which these agencies employ meritocratic recruitment and offer predictable rewarding long term careers we find that these weberian characteristics significantly enhance prospects for economic growth even when we control for initial levels of gdp per capita and human capital our results imply that weberianness should be included as a factor in general models of economic growth they also suggest the need for more attention by policymakers to building better bureaucracies and more research by social scientists on variations in how state bureaucracies are organized

applying and advancing internalization theory the multinational enterprise in the twenty first century internalization theory has provided a resilient analytical framework that explicitly or implicitly underlines much of international business scholarship internalization theory is not a monolithic body of knowledge instead it has devolved into several streams each of which focuses on the interests of particular epistemic communities while also acting as a more generic organizing framework for those more broadly interested in its application to real world challenges following a review of the various streams we trace the frontiers of current research of the broader internalization framework and identify emerging themes raised by the papers in the special issue these include transaction cost considerations in the bundling and recombination of assets across diverse contexts the growing relevance of quasi internalization the theoretical challenges of bounded rationality for internalization theory and the increasing disconnect between ownership control and responsibility these developments point to new research frontiers for scholars looking to apply or advance internalization theory

volatility spillovers between oil prices and stock sector returns implications for portfolio management abstract in this article we take a recent generalized var garch approach to examine the extent of volatility transmission between oil and stock markets in europe and the united states at the sector level the empirical model is advantageous in that it typically allows simultaneous shock transmission in the conditional returns and volatilities insofar as volatility transmission across oil and stock sector markets is a crucial element for portfolio designs and risk management we also analyze the optimal weights and hedge ratios for oil stock portfolio holdings with respect to the results our findings point to the existence of significant volatility spillover between oil and sector stock returns however the spillover is usually unidirectional from oil markets to stock markets in europe but bidirectional in the united states our back testing procedures finally suggest that taking the cross market volatility spillovers estimated from the var garch models often leads to diversification benefits and hedging effectiveness better than those of commonly used multivariate volatility models such as the ccc garch of bollerslev 1990 the diagonal bekk garch of engle and kroner 1995 and the dcc garch of engle 2002

replenishment decisions under an all units discount schedule and stepwise freight costs in this study we analyze the replenishment decisions under a general replenishment cost structure that includes stepwise freight costs and all units quantity discounts we first formulate a general model that accounts for a larger class of problems and prove several useful properties of the expected profit function we later utilize these properties to develop a computational solution approach to find the optimal order quantity as an application of the general results we study the replenishment decisions in the single period i e the newsboy problem considering several scenarios that model the cost considerations either for the buyer or for both the buyer and the vendor

wavelet dynamics for oil stock world interactions abstract a previous research ignores the distinction between short term and long term and by decomposing financial variables world general and stock market indexes and the macroeconomic variable oil prices at various time scales we study the relationship among series on a daily scale by scale basis continuous time wavelets help to circumvent the problems associated to basic linear regressions and given that stock oil relationships are usually described as complicated we extend previous findings by providing more generalized and convincing results in analyzing contagion and interdependence issues as well as lead and lag effects for both world general and sector stock levels between december 1992 and october 2012 the relationship between oil prices and sector stock returns is ambiguous because results seem to show that there are both phase and anti phase relationships where mostly it is oil that is the lagging variable independently of the sector under analysis there is higher coherence among series for higher scales thus supporting the interdependence hypothesis showing that long run market dynamics are more uncertain empirical results indicate a bidirectional relationship between both series for large time horizons which can be associated to fundamentalist traders especially fund managers and institutional investors and which depend on the historical period under analysis

time varying volatility spillover between chinese fuel oil and stock index futures markets based on a dcc garch model with a semi nonparametric approach abstract this paper reveals some new evidence on the volatility spillover between fuel oil and stock index futures markets in china by considering its time variant feature time varying effect is specified by the legendre polynomials in a dcc garch model moreover the semi nonparametric snp approach accounting for marginal excess kurtosis and asymmetry is applied we find different time evolving patterns of volatility spillover across multiple periods due to the structural breaks the direction of mean volatility spillover is found to be bilateral moreover the strength of mean volatility spillover shows that the effect from stock index to fuel oil futures is much stronger than the other way around this implies that the stock index futures market plays a leading role in information processing these findings have important implications for the fuel oil stakeholders as well as risk management

an inventory model with deteriorating items under inflation when a delay in payment is permissible abstract this study develops an inventory model for initial stock dependent consumption rate when a delay in payment is permissible in the inventory model shortages are not allowed the effect of the inflation rate deterioration rate initial stock dependent consumption rate and delay in payment are discussed in the study mathematical models are also derived under two different circumstances i e case i the credit period is less than or equal to the cycle time for settling the account and case ii the credit period is greater than the cycle time for settling the account besides expressions for an inventory system s total cost are derived for these two cases moreover a computational procedure and gino lasdon et al acm transactions mathematical software 4 1978 34 50 are proposed to obtain the optimal order size and cycle time the results can help managers determine the optimal total cost finally a numerical example demonstrates the applicability of the proposed model

the optimal inventory policies under permissible delay in payments depending on the ordering quantity abstract this paper deals with the problem of determining the economic order quantity under conditions of permissible delay in payments the delay in payments depends on the quantity ordered when the order quantity is less than the quantity at which the delay in payments is permitted the payment for the item must be made immediately otherwise the fixed trade credit period is permitted the minimization of the total variable cost per unit of time is taken as the objective function an algorithm to determine the economic order quantity is developed the results obtained in this paper generalize some already published results

comments on the eoq model under retailer partial trade credit policy in the supply chain abstract huang and hsu 2007 an eoq model under retailer partial trade credit policy in supply chain international journal of production economics doi 10 1016 j ijpe 2007 05 014 investigate the inventory system as a cost minimization problem to determine the retailer s optimal inventory policy under the supply chain they develop two easy to use theorems to locate the optimal inventory policy for the retailer although their inventory models are correct and interesting processes of arguments to derive those theorems to find the optimal inventory policy are not complete so the main purpose of this paper is to overcome these shortcomings and present complete proofs for huang and hsu 2007

optimal price discounting and lot sizing policies for perishable items in a supply chain under advance payment scheme and two echelon trade credits abstract many researchers have assumed that a retailer announces price discount to motivate market sales when he has competition in markets unanticipated surplus in inventory or change in the production run of a product but in real life situations there are retailers who announce price discount offer under advance payment ap scheme prior to the selling period due to the advancement of internet and on line money transactions the ap scheme is common and useful to decrease the estimation error in demand and to increase the market sales when the items are arrived to the inventory the priority will be given to the customers who use ap scheme this paper considers a supply chain where the supplier provides the retailer a full trade credit period for payments whereas the retailer offers the partial trade credit to his customers i intend to develop an economic order quantity eoq based model with perishable items in order to investigate the retailer s inventory system as a cost minimization problem under ap scheme and two echelon trade credit option mathematical theorems are developed to determine optimal price discounting and lot sizing policies and a lot of managerial phenomena are obtained through numerical examples

the theory of state owned enterprises in market economies abstract four topics are covered the circumstances under which state owned enterprises soes are more effective than private firms the different approaches to modelling public and private firms the performance of soes and strategies including privatization to limit their more damaging effects it is argued that ideological or development motives are important in their genesis but that if efficiency and innovation are key considerations the normative case for their existence is more doubtful various types of soe model are identified deriving from the variety of circumstances in which they operate and the theoretical perspective of the modeller these include the property rights school the public choice tradition neoclassical behavioural and budget maximizing approaches all models assume the existence of monitoring problems created by informational asymmetry the consequences can include high non pecuniary benefits for managers a concentration on monitored activities and lower innovation levels and efficiency than private firms curiously this is not necessarily reflected in higher prices or costs possible remedial strategies include a change of ownership a change of objectives the introduction of incentive compatible payment schemes improved performance indicators and privatization

a theory of privatisation public enterprises around the world have proved to be highly inefficient primarily because they pursue strategies such as excess employment that satisfy the political objectives of politicians who control them privatization of public enterprises can raise the cost to politicians of influencing them since subsidies to private firms necessary to force them to remain inefficient are politically harder to sustain than wasted profits of the state firms in this way privatization leads to efficient restructuring of firms moreover privatization is more effective when combined with a tight monetary policy and when the new owners of firms are profit maximizing investors rather than their employees or even managers copyright 1996 by royal economic society

the optimal retailer s ordering policies for deteriorating items with limited storage capacity under trade credit financing abstract under permissible delay in payments all previously published models implicitly assumed that the supplier would offer the retailer a delay period but the retailer would not offer the trade credit period to his her customer huang 2003 journal of the operational research society 54 1011 1015 developed a retailer s replenishment model to reflect the real life situations by assuming that the retailer also adopts the trade credit policy to stimulate his her customer demand in huang s model it is assumed that the goods are not perishable and the storage capacity is unlimited based upon the above argument we propose a two warehouse inventory model for deteriorating items under permissible delay in payments three theorems are developed to determine the optimal cycle time and numerical examples are given to illustrate these theorems finally the results in this paper generalize the results presented by huang 2003 journal of the operational research society 54 1011 1015

islamic stocks conventional stocks and crude oil directional volatility spillover analysis in brics abstract this paper uses threshold garch tgarch and generalised forecast error variance decomposition to compute time domain and frequency domain volatility spillover the spillover technique is then applied to islamic and conventional stock indices and crude oil in brics countries brazil russia india china and south africa thus informing investors about the magnitude and speed of the volatility spillover we find that the total volatility spillover is driven mainly by a long term component accordingly these assets are suitable for investors with short and medium term investment horizons however analysis reveals that volatility spillover magnitude and speed increase substantially during the global financial crisis suggesting that investors in brazil russia and south africa with stocks in their portfolio should rebalance promptly dynamic covariance analysis shows that covariance between islamic and conventional stock index returns is the highest and exhibit a significant increase during the crisis period

stackelberg solution in a vendor buyer supply chain model with permissible delay in payments abstract in practice vendors or sellers often offer their buyers a fixed credit period to settle the account the benefits of trade credit are not only to attract new buyers but also to avoid lasting price competition on the other hand the policy of granting a permissible delay adds not only an additional cost but also an additional dimension of default risk to vendors in this paper we will incorporate the fact that granting a permissible delay has a positive impact on demand but negative impacts on both costs and default risks to establish vendor buyer supply chain models then we will derive the necessary and sufficient conditions to obtain the optimal solution for both the vendor and the buyer under non cooperative stackelberg equilibrium finally we will use two numerical examples to show that 1 granting a permissible delay may significantly improve profits for both the vendor and the buyer 2 the sensitivity analysis on the optimal solution with respect to each parameter and 3 the comparisons between nash and stackelberg solutions

the dubious role of institutions in international business a road forward our commentary returns to the conundrum of how institutions matter in international business ib by revisiting the 2018 jibs decade award article by jackson and deeg 2008 on comparing capitalisms we first synthesize their main insights around institutional diversity and track its significant impact within ib and other management fields we then suggest three main takeaways that could move jackson and deeg s agenda further in terms of developing a more nuanced approach to institutions in ib we close with suggestions for future research and urge ib scholars to be more cautious when drawing on different strands of institutions theory

a joint approach for setting unit price and the length of the credit period for a seller when end demand is price sensitive this paper considers the seller buyer channel in which the end demand is price sensitive and the seller may offer trade credit to the buyer the unit price seller charged by the seller and the length of the credit period offered by the seller to the buyer both influence the final demand for the product hence we consider both to be policy variables for the seller we use the case of no credit as a benchmark in our analysis the paper provides procedures for determiningthe seller s and the buyer s policies under non cooperative as well as cooperative relationships in the non cooperative case we determine for the seller the optimal unit price and the length of the credit period for the cooperative structure we provide a procedure for characterizingpareto efficient solutions r 2002 elsevier science b v all rights reserved