assessing the effects of tariff reform on u s food manufacturing industries the role of imperfect competition and intermediate inputs recent work indicates that the joint effects of intermediate input and final output tariff reforms on equilibrium in the differentiated final products sector are analytically ambiguous this issue is addressed empirically for disaggregate imperfectly competitive u s food manufacturing industries the input tariff effect dominates in most industries leading to increases in the number of u s firms and total industry output as a result of tariff reform this provides evidence that the existing u s tariff profile discriminates against domestic food manufacturers as input tariff effects outweigh the protection offered by output tariffs this conclusion is robust to changes in the degree of interfirm rivalry monopolistic competition or cournot oligopoly

pro competitive effects of trade reform results from a cge model of cameroon abstract how likely is trade liberalization to produce efficiency gains in the presence of imperfect competition scale economies and higher than average wages in the modern sectors all common features in developing economies these features create a potential conflict to the extent that traditional notions of comparative advantage lead us to expect that the modern sectors will be squeezed with liberalization in this paper we investigate this issue by using an applied general equilibrium model calibrated to cameroonian data under perfect competition we find that the welfare effect is a wash since the beneficial consequence of expanded imports is offset by the reduction in employment in the modern high wage sectors under imperfect competition by contrast trade liberalization produces welfare gains of the order of 1 to 2 percent of income the key is the pro competitive effect of liberalization domestic firms in the modern sectors now perceive themselves as facing a higher elasticity of demand which spurs them to increase production

the interrelationships between television viewing values and perceived well being a global perspective do global marketing efforts for example those using television as a medium impact on the values and life satisfaction of people and if so is the process similar or different in various regions of the world we empirically examine the relationship between television viewing core values i e religiosity and materialism and perceived well being factors e g perceived socioeconomic status and relative life satisfaction data collected from the western developed nations e g united states and new zealand and several culturally homogeneous regions including new europe latin america the middle east and the far and southeast support the prevalence of diverse consumptionscapes with multiple global consumer cultures rather than a single global culture globalization and advances in technology have not created global norms and homogenized our identities but behavioral patterns and regional identities that are surprisingly durable specifically materialism was shown to influence perceived socioeconomic status both positively for two regions and negatively for two regions and relative life satisfaction except in new europe while perceived socioeconomic status had a positive influence on relative life satisfaction except in new europe and latin america the quantity of television viewing was positively shown to influence materialism directly in some cases as well as through perceived realism in others providing limited support for the cultivation theory effect finally religiosity was shown to play a countervailing role in negatively influencing materialism only in latin american and middle eastern countries and a positive influence on relative life satisfaction only in latin america the rationale behind the differences across regions was also explored the overall results can perhaps be best explained by postmodern epistemologies in which people worldwide are increasingly implicated and in which new traditions are constantly being invented

imports as competitive discipline the role of the productivity gap abstract this paper addresses the impact of foreign competition on the competitive advantage of domestic firms and the role of trade policy in an endogenous growth framework it shows that the impact of foreign competition on r d and productivity depends on the industry s relative position trade liberalization promotes innovation and enhances welfare in mature industries but hinders growth and leads to market exit in infant industries with a large productivity gap in the latter case temporary protection promotes the survival of the firm and increases welfare at the margin hence we integrate the old argument for the temporary protection of infant industries with the notion that foreign competition fosters innovation and productivity

domestic constraints on export led growth a case study of india abstract in light of the 1991 1993 indian policy reforms this paper assesses the feasibility of a strategy of manufacturing export led growth for india by means of simulation experiments using a nine sector seven income classes computable general equilibrium model developed for india s seventh plan period 1985 1990 the relative merits of this strategy are compared to those of an alternative open development strategy agricultural demand led industrialization under both a fixed and flexible exchange rate regime compared to earlier models the analysis adds disaggregated agricultural supply and income distribution and export demand response the results suggest that industrial growth can be self defeating by raising the relative price of domestic goods and thereby running into an export demand bottleneck hence if a step up in manufacturing exports is to contribute to a non inflationary acceleration of gdp growth it needs to be supplemented by adequate policies aimed at raising agricultural output and income

synergy and investment efficiency effects of trade and labor market distortions abstract an alternative mechanism by which trade and labor market distortions affect national income is introduced namely the effects of these distortions on the efficiency of investment for the typical structure of protection of developing countries the income losses due to reduced investment efficiency caused by trade distortions are likely to be many times larger than conventional losses the potential synergistic negative effects of combining trade and labor market distortions commonly observed in developing countries are also emphasized the main conclusion is that income losses of even moderate trade and labor distortions are likely to be much greater than usually presumed

oil depletion and development in cameroon a critical appraisal of the permanent income hypothesis this paper focuses on medium term policy options in the economic context of natural resource depletion in particular a novel approach for analyzing the impact of the permanent income hypothesis pih with a dynamic recursive computable general equilibrium cge model is employed the model is benchmarked in an oil producing country with declining production namely cameroon the results show that the pih renders public finances less vulnerable during the post oil transition however adopting the pih is not associated with substantial improvements in growth and household welfare in cameroon therefore the pih cannot be the only basis for better management of oil revenues in the country

the existence of ramsey equilibrium the authors demonstrate existence of a perfect foresight equilibrium under borrowing constraints in a one sector model with infinitely lived heterogeneous agents the class of admissible preferences includes but is not limited to recursive preferences existence is proven using a t 2ctonnement argument under appropriate conditions on preferences and technology a new measure of discounting the norm of marginal impatience is used to determine which technologies are admissible depending on the norm of marginal impatience the admissible technology may either allow for permanent growth or have a maximum sustainable stock copyright 1991 by the econometric society

time preference and life cycle consumption with endogenous survival we provide a structural theory of time preference and derive a functional form of intertemporal preferences by postulating that individuals make their life cycle consumption choices as if to maximize expected lifetime this yields a nontime separable expected utility representation where the inverse of the coefficient of intertemporal substitution exceeds the coefficient of relative risk aversion the rate of time preference depends on the inverse of expected remaining lifetime and the effect of age on the productivity of consumption in affecting health the preference formulation is applied in a standard intertemporal consumption model to illustrate the implied life cycle consumption choices

on the rate of time preference under recursive preferences abstract the boehm bawerkian and the fisherian approaches lead to identical measurements on both the strong and the weak rates of time preference since they are generally path dependent when goods are multiple conditions assuring their path independence are identified

the dutch disease in a developing country oil reserves in cameroon abstract noting that most of the literature on the dutch disease refers to developed countries this paper looks at the impact of an oil boom on a developing country when certain features of developing countries particularly the imperfect substitutability between domestic and imported goods are incorporated one of the standard dutch disease results can be reversed not all the traded goods sectors will contract a simulation with a computable general equilibrium model of cameroon reveals that the agricultural sector is most likely to be hurt whereas some of the manufacturing sectors will benefit this suggests possible areas for government intervention should it be warranted and may explain the differential performance between the agricultural and industrial sectors of oil exporting countries in the post 1973 period

safety first consumption abstract this paper develops a model of safety first consumption behavior in which the likelihood of survival to the next period depends on current consumption levels below a threshold asset level individuals follow a decumulation path and above that level they follow an accumulation path saving rates then vary discontinuously with asset level generating a poverty trap and divergence in incomes an increase in the likelihood of surviving raises aggregate saving a more equitable distribution of assets can be consistent with greater aggregate savings and growth because of declining marginal propensity to save over some asset intervals

zero time preference with discounting abstract for the uzawa class of utility functionals t 1 v c t e i t c i we investigate the case of v ct a 1 e ct the case has a zero rate of time preference and the functional attains a maximum in finite horizon problems of economic growth the curvature of the production function is crucial in determining the nature of the solution to problems in economic growth with the above optimand

a simple dynamic general equilibrium model abstract we analyse a single sector economy with h 1 infinitely lived agents that operate in a continuous time framework utility functions are recursive but not additive both efficient and perfect foresight competitive equilibrium allocations are considered the existence and stability of such allocations are investigated locally i e in a neighbourhood of steady state allocations the model is shown to be useful for explaining the distribution of wealth and consumption across agents and for analysing the way in which wealth redistribution can affect the dynamics of aggregate economic variables

a theory of infrastructure led development abstract this paper proposes a theory of long run development based on public infrastructure as the engine of growth the government in addition to investing in infrastructure spends on health services which in turn raise labor productivity and lower the rate of time preference infrastructure affects the production of both commodities and health services as a result of network effects the degree of efficiency of infrastructure is nonlinearly related to the stock of public capital itself provided that governance is adequate enough to ensure a sufficient degree of efficiency of public investment an increase in the share of spending on infrastructure financed by a cut in unproductive expenditure or foreign grants may facilitate the shift from a low growth equilibrium characterized by low productivity and low savings to a high growth steady state

trade liberalization and unemployment theory and evidence from india abstract a widely held view among the public is that trade liberalization increases unemployment using state and industry level unemployment and trade protection data from india we find no evidence of any unemployment increasing effect of trade reforms in fact our state level analysis reveals that urban unemployment declines with trade liberalization in states with flexible labor markets and larger employment shares in net exporter industries moreover our industry level analysis indicates that workers in industries experiencing greater reductions in trade protection were less likely to become unemployed especially in net export industries our results can be explained within a theoretical framework incorporating trade and search generated unemployment and some institutional features of the indian economy

impatience and long run growth abstract this contribution is concerned with the possibility of a perpetual growth path at increasing rates in a nonconvex optimal growth model with endogenous discounting sufficient conditions for the existence of this path can be established when the economy is populated by agents whose impatience does not increase too much along the course of a consumption path in the opposite case the dynamical system is asymptotically described by a steady state however this steady state position need not be uniquely defined saddlepoint equilibria and locally oscillating unstable equilibria may alternate in spite of increasingly impatient agents along the growth process it remains optimal for a government to subsidize the competitive economy under a razor edge assumption on impatience a growing planning solution may coexist with a stationary competitive solution

on the microeconomics of food and malnutrition under endogenous discounting abstract this paper explores the microeconomics and dynamics of food and nutrition it examines the linkages between malnutrition and the incentive to invest and accumulate capital the analysis focuses on a dynamic model where preferences about the future depend on nutrition and health situations of malnutrition cover both ends of the spectrum from nutrient deficiency to obesity the model involves preferences that are not time additive and exhibit endogenous discounting this provides a framework to investigate the factors affecting consumption and investment behavior the adverse investment incentives of malnutrition are examined

the rate of time preference and dynamic economic analysis strong restrictions on the structure of preferences are a central feature in the received theory of intertemporal allocation in fact most of the modern literature concerned with capital theoretic problems represents preferences by a functional in which an additive utility function is discounted by a constant rate of time preference this specification is attractive because it is analytically tractable in dynamic models and it clearly delineates how tastes and opportunities interact to determine an economy s household s paths of consumption and capital formation however its rigid structure constancy of time preference severely limits the conclusions and explanatory power of the corresponding models this paper considers a class of utility functionals in continuous time which have the appealing feature that the rate of time preference depends systematically on an index of aggregate future consumption the more flexible structure embodied in these functionals leads to important generalizations and

marshallian recursive preferences and growth abstract although alfred marshall adhered to the classical doctrine of impatience he thought that the act of saving might itself confer utility we model this by making the discount factor a function of savings in addition to providing an intuitive rationale for increasing marginal impatience marshallian time preference has interesting implications for macroeconomics marshallian preferences lower interest rates by stimulating savings paradoxically it is possible for a tax cut to lower interest rates in a marshallian economy in a growth model with marshallian consumers a permanent increase in government expenditures causes super crowding out of consumption and reduces the steady state capital stock

the complete complementarity of consumption and real balances and the strong superneutrality of money abstract in the representative agent model with money in the utility function if consumption and real balances are perfect complements steady state capital intensity and real balance holdings are both invariant to monetary growth regardless of the nature of time preferences

optimal growth with decreasing marginal impatience abstract this paper analyses the long run dynamics of a continuous time infinite horizon optimal growth model with identical households where the households rate of time preference is endogenously determined however unlike the existing literature we assume that households have decreasing marginal impatience i e the instantaneous discount rate is negatively related to the current consumption with this assumption we analyse the stability and uniqueness of the long run equilibrium we show that contrary to the general belief a negative relationship between the instantaneous discount rate and the household s current consumption does not necessarily result in instability of the dynamic system however even a stable system may be characterized by multiple equilibria so that the initial condition becomes important in determining the long run behaviour of the economy we derive a set of sufficient conditions for stability and uniqueness in this context

asymptotic behavior and optimal properties of a consumption investment model with variable time preference abstract this paper analyzes the convergence properties and the determination of an optimal consumption path in the consumption investment model of uzawa 1968 sufficient conditions for the existence and uniqueness of the optimal path are presented components of the utility functional are recovered when the optimal path is piecewise affine the model is applied to the determination of the interest rate and income distribution under time preference differentials

mexican agricultural trade under the gatt expected effects from partially lifting tariff barriers on the mexican agricultural sector are investigated using a restricted profit function rpf approach short run and intermediate run effects of the implementation of gatt minimum tariff provisions on mexican agricultural trade are examined specification tests reveal the appropriateness of the rpf approach that exports should not be aggregated with non traded production into a single output and that the farm sector behaves as an almost price taking profit maximizing firm policy simulations suggest important short run changes in agricultural trade and chemical use and intermediate run changes in agricultural trade labour wage chemical use capital investments and net farm income

on sunk costs and trade liberalization in appled general equilibrium the authors argue that the rationalization gains often predicted by static applied general equilibrium models with imperfect competition and scale economies are artificially boosted by an unrealistic treatment of fixed costs they introduce sunk costs into one such model calibrated with real world data the authors show how this changes the oligopoly game in a way significant enough to affect both qualitatively and quantitatively the outcome of a trade liberalization exercise copyright 1996 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

carbon taxation and market structure a cge analysis for russia abstract russia is one of the world s major sources of carbon based energy as well as one its most intensive users introducing carbon taxes can lead to a reduction in emissions and encourage investment in energy efficiency we investigate the economic effects of carbon taxes on the russian economy under perfect competition and a cournot oligopoly in output markets the main findings are i substituting carbon taxes for labour taxes can yield a strong double dividend in russia however welfare gains strongly depend on the labour supply elasticity and elasticities of substitution between capital labour and energy ii under the assumption of a cournot oligopoly with homogenous products and symmetric firms in the markets for natural gas petroleum and chemical products metals and minerals welfare costs of the environmental tax reform can be higher than under perfect competition this is because introducing carbon taxes leads to a reduction in already sub optimal output thereby exacerbating pre existing distortions arising from imperfect competition iii furthermore increases in energy costs can result in higher mark ups in some markets because of less competition resulting from firms exit

intertemporal dependence impatience and dynamics abstract this paper develops simple geometric methods for analyzing consumer behavior under recursive but intertemporally dependent tastes since the preferences studied need not be time additive they allow the marginal utility of consumption on a given date to vary with consumption on other dates intertemporal dependence is induced by the presence of a variable individual rate of time preference the optimal consumption responses to transitory and anticipated changes in incomes and interest rates are easily derived and are similar in many respects to the responses implied by the standard constant time preference model intuitive explanations of the first order conditions describing optimal paths are provided

the transition between energy efficient and energy inefficient states in cameroon i use a two state energy efficient inefficient markov switching dynamic model to study energy efficiency in cameroon in a novel manner employing yearly data covering 1971 to 2012 i find that th

the influence of increased foreign competition on industrial concentration and profitability abstract this paper uses the chilean manufacturing censuses of 1967 and 1979 to examine the effects of the chilean reforms in the mid 1970s on market structure and performance the reforms substantially increased the concentration in industry and substantially reduced profitability these outcomes are interpreted in the light of hypotheses about the effect of potential entrants on market structure and on the pricing behavior of incumbents next a cross sectoral simultaneous equations model of structure and performance is estimated to isolate the contribution of import and export shares to cross sectoral variations in concentration and profitability and to test for structural change between the two censuses the analysis confirms that the liberalization of trade changed the way import and export shares determined profitability and supports the import discipline hypothesis

the limits of trade policy reform in developing countries trade reform is now raising some new issues this paper deals with three sets of questions first how can trade reform be sustained can governments convince business labor or consumers that trade reform will be lasting so as to forestall possible adverse reactions that would jeopardize the sustainability of the reform second what role should trade reform play when it is implemented in the context of macroeconomic instability are there potential conflicts between the standard desiderata for trade reform and the requirements of macro stability finally should we be worried about the consequences of trade reform in the imperfectly competitive market environments that characterize the developing economies

keeping one step ahead of the joneses status the distribution of wealth and long run growth assuming that the utility of each agent depends on its relative wealth position in the society this chapter constructs an endogenous growth model it is shown that even if the subjective discount rates differ across agents there exists a unique balanced growth equilibrium in which each agent owns a positive share of the world wealth it is also shown that if the agents are identical then an increase in savings incentives always raises the long run growth rate but if they are heterogeneous then an increase in savings incentives may lower the long run growth rate

hyperbolic discounting and endogenous growth this paper provides the closed form solution for the standard model of endogenous growth when consumers have present biased preferences and make time inconsistent savings plans which they revise continuously it is shown that long run growth is not necessarily lower under present biased preferences in fact a strong equivalence result holds if hyperbolic discounting provides the same present value of a constant infinite income stream as standard exponential discounting then the equilibrium rate of economic growth is also the same under both discounting methods in this sense present bias preferences are harmless for economic growth

ramsey meets laibson in the neoclassical growth model the neoclassical growth model is modified to include a variable rate of time preference with no commitment ability and log utility the equilibrium features a constant effective rate of time preference and is observationally equivalent to the standard model the extended framework yields testable linkages between the extent of commitment ability and the rates of saving and growth the model also has welfare implications including the optimal design of institutions that facilitate household commitments steady state results are obtained for general concave utility functions and some properties of the transitional dynamics are characterized for isoelastic utility

the welfare cost of capital income taxation in a growing economy the welfare cost of capital income taxation is analyzed in a general equilibrium framework where the private sector is represented by a competitive household endowed with perfect foresight and an infinite life the value of the welfare cost depends essentially on the elasticity of substitution between capital and labor in the production function numerical estimates are presented for different values of the parameters of the model the welfare gain obtained by the abolition of the capital income tax is smaller when the private sector is not endowed with perfect foresight it is reduced by about 40 percent when expectations are myopic the allocation efficiency cost of the corporate tax dwarfs the intertemporal welfare cost

diversification effects of energy subsidy reform in oil exporters illustrations from kuwait abstract for oil exporters energy subsidy reform and economic diversification are critical policy responses to recent fundamental changes in the global oil market and oil price declines yet the relationship between them is little understood this article investigates linkages between energy subsidy reform and accelerating economic diversification away from hydrocarbons in a low oil price environment using illustrations from kuwait it employs an economy wide general equilibrium model with oligopolistic industrial structure the first of its kind for an economy in the middle east and north africa that embodies unique elements of the country s economic structure oil dependence public sector dominance subsidies sovereign wealth funds industrial collusive pricing behaviour and guest workers the article argues that contrary to common popular discourse kuwait s economy has a diversified economic base but this base fails to diversify export or government revenue needed for economic sustainability results show that weak economic diversification in oil exporters with a similar economic structure is not primarily due to dutch disease as dominant in the literature but to economic constraints and distortions that impair structural change and exacerbate overdependence on hydrocarbons labour and competition reforms relax some constraints achieving large efficiency gains that extend economy wide and can expand non energy tradable sectors the analysis has important policy implications first the potential role of pricing regulation in small economies in moderating economic impacts of negative oil shocks second in oil economies characterized by pervasive oligopolies microeconomic reform can be a channel to achieve efficiency and better diversification effects of subsidy reform

on impatience economic growth and the environmental kuznets curve a dynamic analysis of resource management the paper presents a dynamic analysis of natural resource management and investigates some key factors that affect optimal management and resource conservation using a recursive specification of time preferences we show how endogenous discounting and impatience can affect the motivation for both capital investments and environmental preservation we examine the relationships between economic growth and environmental quality endogenous discounting provides new insights in the economic dynamics underlying the environmental kuznets curve by treating growth as endogenous we examine how externalities and economic growth interact with each other we investigate how economic development can contribute to an increased demand for environmental preservation as an important new result we also show how poverty can contribute to environmental degradation

the recursive core core allocations may be defined for infinite horizon capital accumulation models if agents cannot trust each other in the sense of gale then agents may renege on their commitments their decisions appear time inconsistent a core allocation is a recursive core allocation provided no coalition can improve upon its consumption stream at any time given its accumulation of assets up to that period we show for every allocation of consumption in the initial core one can find a distribution of capital stocks among the agents where no coalition of agents will break the initial core contract at any date it follows that if the proper distribution of the streams of capital is achieved then the allocation in the core is also in the recursive core the latter therefore forges a link between the distribution of wealth capital the problem of trust and time consistent intertemporal contracts

on the existence of balanced growth equilibrium the authors characterize the class of dynamic models that allow for the most commonly used types of sustained economic growth balanced and asymptotically balanced they show that under a constant returns to scale technology asymptotically constant discount rate and asymptotically constant elasticity of marginal felicity are not only necessary but also sufficient conditions for the existence of a n asymptotically balanced growth equilibrium path the authors provide examples of recursive utility models that accept a n asymptotically balanced growth equilibrium and discuss their implications on cross country differences in growth rates as well as on savings behavior and wealth distribution copyright 1997 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

optimal redistributive capital taxation in a neoclassical growth model abstract this paper provides a counterexample to the simplest version of the redistribution models considered by judd 1985 in which the government chooses an optimal distortionary tax on capitalists to finance a lump sum payment to workers i show that the steady state optimal tax on capital income is generally non zero when the capitalists utility is logarithmic and the government faces a balanced budget constraint with log utility agents optimal decisions depend solely on the current rate of return not any future rates of return or tax rates this feature of the economy effectively deprives the government of a useful policy instrument because promises about future tax rates can no longer influence current allocations when combined with a lack of other suitable policy instruments such as government bonds the result is an inability to decentralize the allocations that are consistent with a zero limiting capital tax i show that the standard approach to solving the dynamic optimal tax problem yields the wrong answer in this knife edge case because it fails to properly enforce the constraints associated with the competitive equilibrium specifically the standard approach lets in an additional policy instrument through the back door

macroeconomic policy exchange rate dynamics and optimal asset accumulation the paper develops a model of exchange rate and current account determination for a small economy peopled by infinitely lived utility maximizing households in this setting a central bank purchase of foreign exchange has no real effects when central bank foreign reserves earn interest at the world rate and proceeds are returned to the public in contrast an increase in the monetary growth rate does have real effects even in the long run the model developed here implies that an increase in government spending may lead to a surplus on current account the external adjustment process predicted by the model is one in which consumption real balances and external assets all rise or fall simultaneously