applications of behavioural economics to tax evasion the paper reviews recent models that have applied the techniques of behavioural economics to the analysis of the tax compliance choice of an individual taxpayer the construction of these models is motivated by the failure of the yitzhaki version of the allingham sandmo model to predict correctly the proportion of taxpayers who will evade and the effect of an increase in the tax rate upon the chosen level of evasion recent approaches have applied non expected utility theory to the compliance decision and have addressed social interaction the models we describe are able to match the observed extent of evasion and correctly predict the tax effect but do not have the parsimony or precision of the yitzhaki model

on optimal public good provision with tax evasion it is proved that for public goods with zero income effects also called ziff public goods tax evasion does not affect the optimal level of public expenditure further examples show that in general tax evasion may lead to less but also to more public expenditure

an economic analysis of tax amnesties abstract tax amnesties have frequently been justified as politically popular ways to generate increases in government revenue this paper examines the circumstances under which amnesties are likely to have a beneficial impact on revenue collections it concludes that while in general it may be correct to impose a reduced penalty on individuals who voluntarily disclose tax evasion shortlived amnesties of the type most frequently observed in practice are unlikely to generate genuinely additional revenue particularly when judged against the potential danger of reducing future tax compliance

stabilization and redistribution of coffee revenues a political economy model of commodity marketing boards abstract domestic prices of export crops are important macroeconomic variables in primary exporting countries not only are they key determinants of the business cycle but also play a pivotal role in the resolution of distributive conflicts using a model where producers delegate pricing decisions in a fully optimizing environment this paper explores the relationship between the redistribution and stabilization functions of marketing boards the results of the model as well as the empirical evidence suggest that different institutional arrangements are helpful in explaining differences in macroeconomic performance across countries the analysis is carried out for coffee in colombia costa rica cote d ivoire and kenya

commodity price instability and economic goal attainment in developing countries abstract this paper reviews the theoretical and empirical micro and macro foundations for the frequent claims that instabilities in international commodity markets have deleterious effects on goal attainment in primary commodity exporting developing countries this review leads to the conclusion that the available evidence does not support these claims the paper concludes with speculation on why such claims are so strong despite the lack of supporting evidence perhaps it is because of measurement problems and perhaps because of small but articulate groups with vested interests in overstating the problem

inflation and tax evasion an empirical analysis this paper contains an analysis of the effect of inflation on aggregate tax evasion in the united states over the period 1947 81 it is found that tax evasion in both absolute and relative terms is positively related to the inflation rate further the results indicate that aggregate evasion has risen in both absolute and relative terms with increases in the marginal tax rate but has fallen with increases in the detection probability the penalty rate and the wage share of income finally evasion has risen in absolute terms but has fallen in relative terms when real true income has risen

cyclicality mortality and the value of time the case of coffee price fluctuations and child survival in colombia recent studies demonstrate procyclical mortality in wealthy countries but there are reasons to expect a countercyclical relationship in developing nations we investigate how child survival in colombia responds to fluctuations in world arabica coffee prices and document starkly procyclical child deaths in studying this result s behavioral underpinnings we highlight that 1 the leading determinants of child health are inexpensive but require considerable time and 2 as the value of time declines with falling coffee prices so does the relative price of health we find a variety of direct evidence consistent with the primacy of time in child health production

economic and political determinants of budget deficits in developing countries abstract the evidence from a large sample of developing countries tends to reject the empirical implications of optimizing models of the process of determination of fiscal deficits tax rates seigniorage and inflation the paper also presents some preliminary evidence that an important reason for the failure of the equilibrium approach to fiscal policy is that fiscal deficits are partly determined by political factors and that cross country differentials in budget deficits may depend on measures of political instability in particular as suggested by a number of recent theoretical approaches an increase in the degree of political instability appears to lead to greater budget deficits

tax evasion and strategic behaviour of the firms abstract the purpose of this paper is to analyze the optimal tax evasion decision in the context of an oligopolistic market with quantity setting firms it is shown that the optimal amount of tax evasion for each firm depends not only on the degree of collusion in the market but also on the relative market shares of the firms increasing collusion however leads to a larger amount of tax evasion in the market it is proved that with constant probability of detection separability between shifting and evasion decisions holds whereas it might fail to hold if the probability of detection is a function of the declared tax base in this case a probability function which decreases with the declared tax base will lead to lower evasion and lower shifting

the harambee movement and efficient public good provision in kenya abstract those familiar with kenya since independence will know of the importance of the harambee system the term harambee has come to mean the provision of goods usually social infrastructure through the voluntary cooperation of members of the community provision of public goods in this way is an important alternative to the more normal method provision through tax finance here we compare these two methods of provision with a view towards determining first the circumstances under which harambee might be more effective and second what policies might be pursued to best utilize this system

the effects of volatility in the terms of trade on output growth new evidence abstract this paper examines the empirical evidence for the hypothesis that there is a negative relationship between terms of trade volatility and output growth it finds a statistically significant link between income terms of trade volatility and lower growth rates when the degree of volatility in the income terms of trade is decomposed into its components fluctuations in real exports are of a magnitude similar to those in the relative price of tradables similarly the volatility in the net barter terms of trade is equally affected by variations in the price of exports and of imports any policies aimed at stabilizing the terms of trade or any of its components need to take account of this

tax effects versus budget effects on labor supply this paper analyzes the effects on labor supply of parallel changes in taxes and public spending of various types a number of important recent developments in the labor supply behavior of households are highlighted by such a study of various types of budget effects rather than isolated tax effects this comes out in particular when considering cross substitution effects on labor supply of changes in public spending on goods and services or of the subsidization of goods and services provided by private markets moreover the income effects of tax changes are often mitigated or possibly even removed by the income effects of the accompanying expenditure changes

coffee economic fluctuations and stabilisation an intertemporal disequilibrium model with capital market imperfections abstract this paper develops a two period disequilibrium model of a small open economy under keynesian unemployment to analyse the effects of temporary anticipated and permanent coffee price shocks the model includes a government sector that administers a commodity price stabilisation fund and allows for capital market imperfections the type of capital market imperfection makes an important difference to the results of the model in particular when the government borrows on more favourable terms than individuals the coffee price stabilisation fund reduces the multiplier effects of temporary and permanent shocks not only in the first but also in the second period by contrast when individuals face an upward sloping supply of capital curve the stabilisation fund shifts some of these effects from the first to the second period

the informal sector in developed and less developed countries a literature survey the main goal of this study is two fold 1 to provide ageneral overview of the contributions to the literature on theinformal sector with a special focus on the public choiceapproach and 2 to compare these contributions across twoinstitutionally different types of countries developed andless developed developing and transition countries thepaper focuses on the criteria used to define the informalsector the relationship between the formal and informaleconomy tax evasion and public choice analysis it isstressed throughout this paper that the distinction betweenthe two types of countries is of key importance

culture compliance and confidentiality taxpayer behavior in the united states and italy the experimental economics center and the department of economics of the andrew young school of policy studies georgia state university atlanta ga and the center for experimental economics at fondazione university ca foscari italy

the economic effects of windfall gains in export earnings 1975 1978 abstract this paper reviews the effects of recent dramatic increases in beverage prices 1975 1978 on a sample of countries that are highly dependent on these commodities in most countries the increase in producer prices was restricted allowing substantial sums to accrue to the central government and the commodity organizations the countercyclical impact of fiscal policy was often limited by the rise in development spending this policy stance and the lack of monetary restraint contributed to a substantial rise in imports consequently in many of the sample countries the external reserve position in 1978 was little better than before the windfall gain

export fluctuations and economic growth an empirical analysis abstract the uncertainty associated with trade variability is generally resumed to exert a significant effect on the domestic economy of loss developed countries inadequately equipped to cope with these fluctuations the belief that it has a negative influence on these economies has been for several decades the dominant hypothesis among economists but it has been challenged on both theoretical and empirical growths the present paper proposes to investigate this problem from an empirical point of view cross country analysis is developed to investigate the influence of export instability on the domestic economy of less advanced nations the results show that no clear conclusions for the general case can be provided since they are sensitive to the particular time period considered a negative impact can be expected when price and quantity instability appear to reinforce each other but this is not always the case

individual morality and reputation costs as deterrents to tax evasion abstract empirical evidence suggests some taxpayers never evade evasion increases with the tax rate and evasion decisions are interdependent these findings are not easily explained by the existing theory which models evasion as an independently made amoral gamble this paper uses nonpecuniary costs of evasion to reconcile theory with evidence once individuals are assumed to differ by an honesty characteristic taxpayers dichotomise into groups the more honest of which responds to a tax change as the evidence suggests a further extension is to introduce an endogenous reputation cost this suggests a positive relationship between the number of evaders and the tax rate

enforcement socioeconomic diversity and tax filing compliance in the united states in this article we examine the determinants of tax filing compliance in the united states we use county level data on non filing rates for the tax year 2000 obtained directly from the internal revenue service we include explanatory variables identified in the rational compliance framework including an enforcement index against identified non filers the audit rate of filers and the average penalty rate for both filers and non filers we also examine the role of socioeconomic diversity on tax compliance testing whether within county heterogeneity in household income language race and religion can help explain variation in non filing rates we find that non filing is increasing with heterogeneity by race although not by income or language and that non filing is decreasing with heterogeneity by religious membership as for enforcement variables we find that non filing rates tend to fall with the enforcement index other variables have somewhat mixed results

resource intensity institutions and development summary we examine the relationship between resource abundance and several indicators of human welfare consistent with the existing literature on the relationship between resource abundance and economic growth we find that given an initial income level resource intensive countries tend to suffer lower levels of human development while we find only weak support for a direct link between resources and welfare there is an indirect link that operates through institutional quality there are also significant differences in the effects that resources have on different measures of institutional quality these results imply that the resource curse is a more encompassing phenomenon than previously considered and that key differences exist between the effects of different resource types on various aspects of governance and human welfare 2005 elsevier ltd all rights reserved

the causes of government expenditure growth a survey of the u s evidence abstract the growth of government budgets can be broken down into a institutional and institutional components the former component the familiar substitution income and population public goods tax sharing effects is estimated to contribute about two fifths of the growth of u s government spending the latter component rent seeking political redistributions bureaucracy and perceptual informational impedimentia is important too but an exact imputation cannot be asserted given the state of the art in empirical public choice theory the cross effects on spending of the growth of regulation and tax preferences or tax expenditures though interesting is not pursued

from export instability effects to international stabilization policies abstract this paper examines how the analysis of export earnings instability effects can help in the search for international policies of export earnings stabilization export instability which has been increasing and has been a quantity instability as well as a price instability is seen as a development problem a judgment relying mainly on a new cross section study and its policy implications stabilization of export earnings is analyzed as a response to this problem shortfall compensation and its different alternative conditions are examined with regard to the assumed effects of export instability and with special reference to the imf compensatory financing facility to the stabex and to the new proposal of the 1985 unctad expert group

economic impacts of el nino southern oscillation evidence from the colombian coffee market el nino southern oscillation enso is a naturally occurring phenomenon that affects weather around the world past enso episodes have had severe impacts on the economy of colombia we study the influence of enso on colombian coffee production exports and price our structural econometric specification is consistent with an economic model of the market for colombian coffee which in the short run is characterized by a downward sloping demand curve and by a vertical supply curve we show that el nino i e positive shocks to enso is beneficial for colombian production and exports and decreases the real price of colombian coffee on the contrary la nina i e negative shocks to enso depresses colombian coffee production and exports and increases price however the overall impact of enso shocks is small both in the short run and in the long run shocks to international demand for colombian coffee are more relevant than supply side shocks in colombia in explaining the dynamics of the price of colombian coffee our results suggest that a given coffee price shock can have beneficial detrimental or negligible effects on the colombian economy depending on its underlying cause as a consequence policy responses to coffee price shocks should be designed by looking at the causes of the shocks

the optimal size of a tax collection agency the condition that characterizes the optimal size of a tax collection agency is derived and then given a simple interpretation in terms of excess burden the paper clarifies an earlier finding of sandmo which suggests that the optimal degree of enforcement is higher than a simple cost benefit calculation would indicate the appropriate condition is that at the margin the resource cost of increasing enforcement should equal the saving of excess burden due to the decline in exposure to risk the increased revenue gained from stricter enforcement does not enter the expression because it merely represents a transfer among the economy s identical agents

multimarket analysis of agricultural price policies in an operational context the case of cyprus this article presents a method of analysis of agricultural price policies its basic features are i the incorporation of important supply and demand substitution possibilities ii a flexible structure which can account for institutional features of the agricultural sector and its relationships with the rest of the economy and iii a focused policy oriented approach an application to cyprus is presented which highlights the differences between this approach and analyses of single markets the method incorporates supporting software on personal computers with the longer term objective of developing this type of approach as a standard tool in pricing policy analysis

multiple breaks terms of trade shocks and the unit root hypothesis for african per capita real gdp summary this paper presents an investigation of the unit root hypothesis for per capita real gdp series in 46 african countries from maddison 2003 over the period spreading during 1950 and 2001 toward this end we employ highly flexible panel techniques which incorporate multiple mean and slope shifts in the output series our findings are clearly supportive of regime wise trend stationarity in output after 1 allowing for cross dependence and multiple breaks and 2 removing four countries that exert undue influence on the whole panel remarkably our main results hold true for alternative per capita real gdp proxies retrieved from the penn world table 6 2 as well as for different country groups constructed on the basis of the country s participation in regional integration processes interestingly the timing of the breaks broadly coincides with terms of trade shocks associated with large fluctuations in the price of primary commodities based on our results we draw some policy prescriptions that point to the need for managing adequately terms of trade booms and busts to avoid large swings in africa s aggregate output

market reform and private trade in eastern and southern africa abstract this article reviews the experience of market reform in eastern and southern africa and highlights some key lessons learned a distinction is drawn between countries whose policy regime before reform was favourable to food production and those whose policies were unfavourable and alternative reform paths are described the two key issues emerging are the role of the public sector after reform for which there is still no clearly appropriate model and how the strong short term response of the private sector to trading opportunities can be transformed into investment post reform markets have been competitive but operate under tight constraints with little evidence of significant capital accumulation critical research issues to inform policy making are identified

income tax evasion an intersectoral analysis abstract this paper develops an intersectoral model of income tax evasion with general equilibrium effects key elements of the model are imperfectly substitutable outputs from the compliant and evading sectors and workers with heterogeneous evasion costs the model allows for biased public expenditures a wide range of behavioural responses and both legitimate and criminal activities evading tax as well as tax avoidance activities qualitative and quantitative assessments are undertaken for the effects of tax rate changes on evasion activity relative output prices and real tax revenues this approach offers useful findings for taxation policy and is amenable to further analytical extensions

tax evasion fiscal competition and economic integration abstract this paper examines the implications of tax evasion for fiscal competition and tax harmonization policies in an economic union first for symmetric countries it proves that the equilibrium values of the tax and audit rates are less than optimal tax harmonization alone will also lead to a less than optimal audit rate second for asymmetric countries the paper shows that integration may turn an honest country into an evading one it argues that tax harmonization alone may be a bad policy in that it can make both countries worse off it may also cause an otherwise honest country to turn to evasion

dollars for sale exchange rate policy and inflation in africa abstract in africa the government is often the main provider of foreign exchange acquired through aid or via a nationalized mining sector although a parallel market is also usually active a policy of indexing the official exchange rate on the parallel one is destabilizing while a nominal anchor policy has the opposite effect using the case of nigeria these stylized facts are interpreted in the light of an analytical model with rational expectations the case of guinea is also presented as an example of where the nominal anchor policy has succeeded

tax evasion and capital gains taxation this paper uses time series data to investigate how changes in capital gains tax rates affect taxpayer compliance it finds that a one percent increase in the marginal tax rate reduces voluntary compliance by between one half and one percent these results confirm the findings of previous studies based on individual household data they also suggest that at least one quarter of the observed capital gain realization response to changes in marginal tax rates is due to changes in reporting behavior rather than portfolio behavior this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item

portfolio models and planning for export diversification malawi tanzania and zimbabwe evidence is presented regarding strengths and limitations of portfolio approaches as applied to diversifying export earnings an empirical application using data from malawi tanzania and zimbabwe is used to demonstrate these strengths and limitations modifications of the typical portfolio approach to export diversification are presented these modifications help make the approach more plausible for use in developing countries the modified approach is shown to provide guidance to policymakers who seek simultaneously to increase export earnings and reduce their instability

opting out of the social contract tax morale and evasion we examine the individual level determinants of tax morale in low capacity states specifically latin american countries where the social contract is often perceived as fractured we argue that in

on price risk and the inverse farm size productivity relationship abstract the oft observed inverse relationship between farm size and productivity has elicited several explanations having important policy and theoretical implications using advances in the analysis of price risk effects on producer behavior and a simple two period model of an agricultural household that both produces and consumes under price uncertainty at the time labor allocation decisions are made this paper demonstrates analytically that a non degenerate land distribution and price risk can together produce an inverse relationship even absent any of the more common explanations empirical evidence from madagascar confirms the plausibility of this intuitive explanation for the phenomenon

the impact of public transfer expenditures on tax evasion an experimental approach abstract this paper outlines the methodology and results of an experiment undertaken to analyze primarily the impact of public sector transfer payments on tax evasion behaviour apart from the use of transfer payments further explanatory variables used were income expected auditing probability and perceived tax burden the influence of these variables on both the propensity to evade taxes and the extent of taxes evaded are investigated in an attempt to add more realism some innovative changes to the experimental approach were incorporated

fiscal response to a temporary trade shock the aftermath of the kenyan coffee boom the appropriate fiscal response to a temporary terms of trade windfall is difficult to determine even in an unregulated economy but controls such as those in force during the 1976 79 coffee boom in kenya introduce special problems for example foreign exchange controls make the private investment of boom income inefficient by causing it to be undertaken too rapidly in kenya the boom induced a massive increase in public expenditure far in excess of the increase in public revenue the net effect on capital formation was negative because the fiscal response exacerbated the rise in the relative price of nontraded capital goods and because resources were preempted for government consumption

coffee money and inflation in colombia abstract the purpose of this paper is to analyse the relationship between coffee money inflation and international competitiveness in colombia the basic hypothesis being investigated is that higher lower prices of coffee will tend to result through the accumulation of international reserves in higher lower inflation in turn this higher inflation will generate for a given rate of devaluation of the nominal exchange rate a reduction of the real exchange rate with the consequent loss of competitiveness in the non coffee tradable goods sector a dutch disease type of model is developed to discuss analytically the relationship between coffee prices money creation and competitiveness in the short and long run empirical results for 1952 1980 are presented these results support the hypothesis that there has been a positive relationship between the price of coffee money creation and inflation in colombia

the short run impact of fluctuating primary commodity prices on three developing economies columbia ivory coast and kenya abstract computable general equilibrium models are used to study the short run impact of fluctuating primary commodity prices on the economies of columbia ivory coast and kenya the results indicate that these economies are destabilized by primary commodity price fluctuations unless governments act to hold real domestic absorption constant to achieve this however would require foreign exchange reserves in excess of the level normally available to these governments for the purpose of stabilizing domestic economic activity

economic lot sizing with learning and continuous time discounting is it significant abstract learning curves are a means of representing continuous improvement in firms such improvements bring savings in production costs this may also allow smaller batches to be produced more frequently and hence bring further savings in holding costs earlier research advocated that for more realistic modelling of inventory problems the holding cost should be evaluated means of the internal discount rate of the firm c van deft j p vail international journal of production economics 44 1996 255 265 this paper examines whether when learning is considered it is reasonable to ignore the effect of continuous time discounting of costs by investigating the effect of learning and time discounting both on the economic manufacturing quantity and minimum total inventory cost numerical examples are provided to illustrate the solution procedure for the mathematical model developed although the analysis yields different economic order quantities the difference in cost from the quantities derived using wilson lot size formula is not significant

a new look at the benefits of diversification lessons from central america recent trends of export diversification in central america may lower foreign exchange earnings instability there four countries costa rica el salvador honduras and guatemala are analysed across a twenty year period the paper uses united nations commodity trade statistics to explain why costa rica and honduras have enjoyed greater earnings stability in recent years despite the fact that honduras has not greatly diversified its export products and markets despite the growth of new agricultural and manufacturing goods traditional primary products still dominate the countries export portfolios specific products within each of the four broad product category groups contribute to the varied country outcomes summary statistics from the united nations panel data suggest newer agricultural exports have not stabilized guatemalan and salvadoran export earnings while honduras has enjoyed relatively stable banana export revenues and costa rica has benefited from the smooth flow of microelectronic product

business culture and tax evasion why corruption and the unofficial economy can persist abstract this paper shows that business and tax inspection culture can create multiple equilibria in bad equilibria high cheating and corruption increases in penalties or auditing can have perverse impacts and increase cheating the source of the multiple equilibria is the externalities created by business and tax inspection cultures as tax evasion and corruption become more common they become more acceptable and their cost is lowered a third externality that between firms and inspectors is the source of the perverse effect more cheating by firms is good for bribe taking inspectors and more bribe taking inspectors are good for cheating firms

tax evasion inflation and stabilization abstract this paper focuses on the public resort to tax evasion in developing countries as an adjustment tactic during economic downturn we show using a theoretical model of intertemporal consumption that tax compliance declines when current income declines expectations about future income improve or inflation rises we then apply the model empirically to the cases of argentina brazil and chile three countries which have long experience with tax evasion and inflation over the last 40 years and find confirmation

consequences of a commodity boom in a controlled economy accumulation and redistribution in kenya 1975 83 the economic theory of dutch disease is extended and applied to the 1976 79 coffee boom in kenya in this article when a commodity boom is perceived as temporary a large fraction will tend to be saved out of transient income the spending effect of the boom is supplemented by relative price changes resulting from capital stock increases in the presence of foreign exchange and import controls the benefits of a sudden export price increase may be transferred intersectorally using a general equilibrium model it is estimated that in kenya the benefits of the boom were largely transferred from coffee growers to urban groups

a new look at the effects of export instability on investment and growth abstract this paper is concerned with the effects of export instability on investment and growth it is shown that past cross sectional empirical studies on the effects of export instability either in prices or in value terms used an incorrect measure of instability that does not properly take account of the share of exports in gdp using a new instability index and a broad set of conditioning variables it is shown that export instability was positively associated with investment but negatively associated with growth in a large sample of countries during the period from the early 1970s to the mid 1980s

walking inside the potential tax evader s mind tax morale does matter we conduct an empirical study on the determinants of the psychological costs of tax evasion also known as tax morale as a preliminary step we build a model of tax evasion including non monetary considerations show the relationship between tax compliance and tax morale in the empirical analysis of tax morale we find using a binomial logit model that the justification of tax evasion can be explained by the presence of grievance in absolute terms those who feel that taxes are too high those who feel that public funds are wasted and those who accept underground economic activities and grievances in relative terms the suspected level of others tax evasion the sense of duty and the level of solidarity are also relevant factors but to a lesser extent

labour force and land distributional effects of agricultural technology a case study of coffee abstract land reform frequently refers to government policies which expropriate large farms and fragment them into smaller units however land reform can also refer to the opposite process that of consolidation of farms which are too small for efficient production in the latter sense that of land consolidation land reform may or may not be socially desirable and prompt government intervention possible gains in efficiency accruing from land consolidation may not be desirable if it entails agricultural unemployment and accelerated rural urban migration in which case governments may try to intervene this paper looks at land reform in the context of one crop coffee new techniques of coffee cultivation will increase output labour output land and labour land ratios offering the prospect for higher coffee employment and output however economic and institutional barries will preclude higher output as a result coffee employment and small coffee farms will be threatened this paper examines the economic implications of the new coffee technology in the context of columbia

international tourism and export instability export diversification has been suggested as a strategy for decreasing the level of export earnings instability which is experienced by many developing countries in recent years the international tourism sector has made an increasingly important contribution to the economies of many low income countries this article examines whether diversification into the non traditional tourism sector has succeeded in decreasing the instability of export earnings it was found that although tourism has the advantage of high growth rates and is a major source of foreign currency receipts earnings from international tourism did not bring about a significant decrease in the instability of export earnings of most of the developing and industrialised countries considered furthermore a net increase in the instability of earnings from tourism and merchandise exports occurred in a number of countries and may be a particular problem in small open developing economies

why people pay taxes the case of the development levy in tanzania abstract this paper examines factors determining tax compliance behavior in local authorities in tanzania the case study is the poll tax locally named development levy the study finds support for the hypothesis that tax compliance is positively related to factors such as ability to pay the perceived probability of being prosecuted and the number of tax evaders known personally by the respondent oppressive tax enforcement harassment of taxpayers and discontent with public service delivery seem to increase tax resistance and may explain widespread tax evasion

the caisse de stabilisation in the coffee sector of the ivory coast abstract in the early 1970s the ivory coast was regarded as an example of succesful development based on comparative advantage by exporting coffee and cocoa the ivory coast was able to obtain trade surpluses and rural development its marketing board the caisse de stabilisation provided sufficient incentives for farmers to grow coffee and cocoa and yet it was able to generate surpluses for public investment this paper examines the role of the caisse and in particular its role in stimulating technological development a comparison is made with colombia which has experienced considerable technological change in coffee cultivation

income tax evasion labour supply and the equity efficiency tradeoff abstract this paper is an attempt to incorporate tax evasion into the analysis of optimum income taxation a model of variable labour supply with tax evasion is used to derive supply functions for labour in regular and irregular markets given taxpayer behaviour the government chooses tax rates penalties and the probability of detection to maximize a utilitarian social welfare function the results consist in the derivation of a formula for the optimum marginal tax rate and a characterization of the factors determining the choice between the penalty rate and the probability of detection as instruments for the control of tax evasion

production planning with discounting and stochastic demands abstract a general continuous review production planning problem with stochastic demand is considered conditions under which the stochastic problem may be correctly solved using an equivalent deterministic problem are developed this deterministic problem is known to have the same solution as the stochastic problem moreover conditions are established under which the deterministic equivalent problem differs from a commonly used deterministic approximation to the problem only in the interest rate used in discounting thus solving the stochastic problem is no more difficult than solving a commonly used approximation of the problem

responding to the coffee crisis what can we learn from price dynamics an econometric model of coffee price dynamics is specified and estimated to capture the evolution of coffee prices at the farm wholesale and retail levels it investigates the historical influence of the international coffee agreement ica through its effects on yield and planting decisions in the short run the ica caused brazilian farm prices to become disconnected from international prices the ica helped coffee producers to better incorporate current world price information into planting decisions this created a price cycle that did not exist in non ica periods the low coffee prices experienced since the disintegration of the ica are consistent with low supply response to price information asymmetric price transmission at the retail level helped roasters and retailers benefit from upstream price interventions our results urge caution when considering future coffee price interventions

terms of trade fluctuations and stabilization of producer prices by compensatory taxation abstract a small general equilibrium model is presented which highlights the role of the real exchange rate in the south in determining the terms of trade between the south and the north the dynamics of the model may generate terms of trade instability for some values of the parameters of the system compensatory taxation of export earnings by a stabilization fund in the south is shown to increase the likelihood of instability

stabilisation strategies in primary commodity exporting countries a case study of chile abstract a range of stabilisation options are considered to enable the chilean economy to accomodate a reduction in world copper prices these include macroeconomic wage and trade devaluation protection export subsidies policies using a multisectoral model the paper checks the ability of these option to reach employment and current account targets while quantifying their implications for other macroeconomic and structural variables each option is efficient in some degree in meeting one target while violating the other external and internal equilibrium cannot however be simultaneously achieved without cuts in both money wages and real absorption trade policies in themselves are insufficient

primary commodity price fluctuations and developing countries an econometric model of copper and zambia abstract most of the literature on commodity price fluctuations and their impact on development has been based on cross country data and aggregated export earnings the results have been inconclusive largely because the analysis fails to recognize the importance of country and commodity differences this paper isolates a single commodity copper and a single country zambia which copper export earnings loom large in the economy it then presents an econometric model of the country consisting of a disaggregated copper export sector with links to a macro model of the whole economy fluctuations in export prices around a smooth trend are then simulated and their impact on the non export sectors observed through such a development indicators as exployment levels gdp levels and growth rates general price levels and final demand

predictive analytics and the targeting of audits the literature on audit strategies has focused on random audits or on audits conditioned only on income declaration in contrast tax authorities employ the tools of predictive analytics to identify taxpayers for audit with a range of variables used for conditioning the paper explores the compliance and revenue consequences of the use of predictive analytics in an agent based model that draws upon a behavioral approach to tax compliance the taxpayers in the model form subjective beliefs about the probability of audit from social interaction and are guided by a social custom that is developed from meeting other taxpayers the belief and social custom feed into the occupational choice between employment and two forms of self employment it is shown that the use of predictive analytics yields a significant increase in revenue over a random audit strategy

a dynamic portfolio choice model of tax evasion comparative statics of tax rates and its implication for economic growth abstract this paper extends the portfolio choice model of tax evasion from a static to a dynamic setting it is shown that while higher tax rates repress tax evasion in the static model they encourage tax evasion in the dynamic model we explore a novel implication of this result and show that while growth is decreasing in tax rates in the absence of tax evasion it is u shaped in tax rates in the presence of tax evasion

optimal trade taxes on agriculture in developing countries subsistence foodcrops and incomes are hard to tax in developing countries it is easy and common to tax agricultural imports and exports if domestic transactions cannot be taxed how should agricultural trade taxes be set and how should indirect taxes on nonagricultural consumer goods be set this paper derives and quantifies formulas for the optimal export tax on a nonfood agricultural product ghanaian cocoa in which the country has market power and the level of indirect taxes on taxable consumer goods it asks whether starting from free trade on cereals there should be import tariffs or subsidies copyright 1990 by royal economic society

the rise and decline of rent seeking activity in the brazilian coffee sector lessons from the imposition and removal of coffee export quotas summary brazil the world s largest coffee exporter encouraged efforts in the 1960s to form the international coffee agreement ica which restricted total coffee exports via country export quotas the quotas led to significant domestic quota rents in producing countries this paper analyzes the effects of rent seeking in brazil the brazilian institute of coffee ibc which was responsible for coffee policy was the focus of rent seeking the paper models the policy instruments used by the ibc shows how rent seeking affected policy industry efficiency and the distribution of rents explains the causes and effects of ibc reforms in the late 1980s and draws lessons from the experience

commodities and development some issues abstract this paper provides a review of a range of issues relating to the relationship between primary commodity markets and the process of economic development as such it provides a backdrop against which the various essays contained in this special issue may be seen

why kill the golden goose a political economy model of export taxation why do governments tax exports at rates that are ultimately self defeating an answer may lie in the time inconsistent nature of a low tax policy using a dynamic model of export taxation i show that the sustainability of a low tax policy depends on three variables the ratio of sunk costs to total costs how heavily future export revenue is discounted and expected future export earnings using data on taxation leadership duration and profitability i test this theory for 32 countries and six crops from sub saharan africa these three variables are statistically and economically relevant predictors of tax regime

dynamic version of the economic lot size model this article originally appeared in management science october 1958 volume 5 number 1 pp 89 96 published by the institute of management sciences a forward algorithm for a solution to the following dynamic version of the economic lot size model is given allowing the possibility of demands for a single item inventory holding charges and setup costs to vary over n periods we desire a minimum total cost inventory management scheme which satisfies known demand in every period disjoint planning horizons are shown to be possible which eliminate the necessity of having data for the full n periods

export instability export growth and gdp growth abstract the positive correlation between export instability and export expansion reported by lam in a recent paper is shown to be the result of a bias caused by the manner in which the instability index was calculated and by using data series which end in a year of unusually high exports it is shown that when correction is made for these factors there is no statistically significant correlation between export instability and export expansion or domestic income expansion

saving determinants in colombia 1925 1994 abstract this paper analyzes the determinants of saving in colombia using the framework of an intertemporal model national saving partially responds to temporary changes in output according to the permanent income hypothesis higher government expenditures in relation to their permanent level are associated with lower national saving refuting the existence of ricardian equivalence the paper tests other common hypotheses in regard to saving behavior in particular we find that changes in national savings and changes in investment are perfectly correlated and that savings cause growth in the granger sense the results also indicate that increases in urbanization and age dependency have had a significantly negative effect on private saving in colombia finally we find that much of the recent reduction in private savings can be accounted by the effects of higher taxation

a fairness approach to income tax evasion abstract the tax that a taxpayer wishes to evade is determined on the basis of his perception of the fairness of his fiscal treatment with respect to both governmental supply of public goods and the perceived behaviour of other taxpayers the coercive powers of the state and the taxpayer s attitude toward risk determine the extent to which this desired level is undertaken in practice this approach is able to produce implications for the relationship between public expenditure tax rates and tax evasion which are more consistent with empirical evidence than the results of the conventional portfolio choice approach