Equity home bias,incomplete financial markets,and nominal rigidities

Abstract This paper analyzes optimal portfolio decisions in a monetary open‐economy framework. It is found that market completeness and the specific form of nominal rigidities, namely, nominal price vs. nominal wage rigidities, matter for justifying the observed structure of equity holdings. When markets are complete, sticky prices generate a negative correlation between the non‐diversifiable labour income and the profit of domestic firms with respect to the productivity shocks, which explains why households invest little abroad. In contrast, when markets are incomplete, rigidities in goods prices result in a counterfactual ‘super home bias’, because domestic equities provide a good hedge against not only the labour income risk but also the relative price risk. Wage rigidities, however, have the opposite effect. Therefore, nominal rigidities in both goods prices and wage rates are needed to address the empirical composition of gross equity positions under incomplete markets.     

Import prices,income, and inequality

We compare three theoretical explanations for the positive empirical relationship between importer income per capita and traded goods prices. A first explanation is that consumers with higher incomes demand higher quality goods with higher prices. A second explanation is that wealthier people exhibit an increased willingness to pay for necessary goods as more goods enter the consumption set in a hierarchic demand system, and can thus be charged higher markups. A third explanation is that consumers with higher incomes are more finicky regarding their preferred variety in an ideal variety framework and can thus be charged higher markups. We discriminate between these three theories by focusing on the effect of income inequality on trade prices. Based on a large dataset with bilateral HS6 level data on 1260 final goods categories from more than 100 countries between 2000 and 2004, we find a highly significant negative effect of income inequality on unit values. This contradicts both the demand for quality and finickyness theories, while providing support for the increased willingness to pay theory linked to hierarchic demand. These findings on income inequality do not falsify the quality expansion model and the ideal variety model per se. However, the results do argue for place of importance of hierarchic demand.     

THE MORPHOLOGY OF PRICE DISPERSION

This article is a study of the shape and structure of the distribution of prices at which an identical good is sold in a given market and time period. We find that the typical price distribution is symmetric and leptokurtic, with a standard deviation between 19% and 36%. Only 10% of the variance of prices is due to variation in the expensiveness of the stores at which a good is sold, whereas the remaining 90% is due, in approximately equal parts, to differences in the average price of a good across equally expensive stores and to differences in the price of a good across transactions at the same store. We show that the distribution of prices that households pay for the same bundle of goods is approximately Normal, with a standard deviation between 9% and 14%. Half of this dispersion is due to differences in the expensiveness of the stores where households shop, whereas the other half is mostly due to differences in households' choices of which goods to purchase at which stores. We find that households with fewer employed members pay lower prices and do so by visiting a larger number of stores instead of by shopping more frequently.     

Tax,credit constraints,and the big costs of small inflation

This paper develops a heterogeneous‐agent overlapping generations model that examines how the neutrality of the tax system with respect to inflation depends on the price elasticity of the housing supply. The model, which endogenises house prices and rents, and which incorporates detailed tax regulations and bank‐imposed credit constraints, shows (a) inflation has large effects on the tenure arrangements of young households irrespective of the housing supply elasticity; and (b) inflation can improve the welfare of some low income young households if the supply is sufficiently elastic. The welfare costs of inflation are reduced by taxing real rather than nominal interest.     

NONSUBSTITUTION THEOREMS FOR A SMALL TRADING COUNTRY

This paper proves a nonsubstitution theorem for small trading economies, under quite plausible conditions. Conditions are established under which the consumption possibility set for an economy that has nontradeable factors of production and nontradeable consumption goods is bounded by a hyperplane, rather than by a curved surface. The theorem allows the possibility that the prices of nontradeable factors, and hence the incomes of their owners, may depend on domestic supplies of nontradeable factors. It is concluded that the equilibrium wage and the equilibrium prices of all consumption goods are independent of domestic endowments or the shape of demand functions. The theorem tends to strengthen the view that, in the absence of trade barriers, differences in real wages across countries cannot be explained by differences in resource endowments.     

The trade reducing effects of market power in international shipping

Developing countries pay substantially higher transportation costs than developed nations, which leads to less trade and perhaps lower incomes. This paper investigates price discrimination in the shipping industry and the role it plays in determining transportation costs. In the presence of market power, shipping prices depend on the demand characteristics of goods being traded. We show theoretically and estimate empirically that ocean cargo carriers charge higher prices when transporting goods with higher product prices, lower import demand elasticities, and higher tariffs, and when facing fewer competitors on a trade route. These characteristics explain more variation in shipping prices than do conventional proxies such as distance, and significantly contribute to the higher shipping prices facing the developing world. A simple back of the envelope calculation suggests that eliminating market power in shipping would boost trade volumes by 5.9% (for the US) to 15.2% (for Latin America). Our findings are also important for evaluating the impact of tariff liberalization. Cargo carriers decrease shipping prices by 1–2% for every 1% reduction in tariffs.     

Optimal tax perturbations

The paper considers an economy with H households, N+1 commodities and M fixed factors with commodity taxes and government expenditures on goods and services. The paper studies under what conditions (small) Pareto improving tax changes exist, i.e., tax changes which increase the utility of each household in the economy. The basic analytical technique used is just the usual comparative statics apparatus, except that duality theory is used in order to simplify the computations. The paper derives both the changes in prices and in real incomes that are induced by (small) changes in exogenous tax variables (differential real income balanced budget incidence analysis).     

Profits and poverty: Certification's troubled link for Nicaragua's organic and fairtrade coffee producers

Governments, donors and NGOs have promoted environmental and social certification schemes for coffee producers as certified market channels are assumed to offer higher prices and better incomes. Additionally, it is presumed that these certifications contribute to poverty reduction of smallholders. Yet, gross margins, profits and poverty levels of certified smallholder coffee producers have not yet been quantitatively analyzed applying random sampling techniques. Our quantitative household survey of 327 randomly selected members of conventional, organic and organic-fairtrade certified cooperatives in Nicaragua is complemented by over a hundred qualitative in-depth interviews. The results show that although farm-gate prices of certified coffees are higher than of conventional coffees, the profitability of certified coffee production and its subsequent effect on poverty levels is not clear-cut. Per capita net coffee incomes are insufficient to cover basic needs of all coffee producing households. Certified producers are more often found below the absolute poverty line than conventional producers. Over a period of ten years, our analysis shows that organic and organic-fairtrade farmers have become poorer relative to conventional producers. We conclude that coffee yield levels, profitability and efficiency need to be increased, because prices for certified coffee cannot compensate for low productivity, land or labor constraints.     

Commodity prices and related equity prices

This paper shows that commodity‐sensitive stock price indices have strong power in predicting nominal and real commodity prices at short horizons (one‐month‐ahead predictions) using both in‐ and out‐of‐sample tests. The forecasts based on commodity‐sensitive stock price indices are able to significantly outperform naïve no‐change forecasts. For example, the one‐month‐ahead forecasts for nominal commodity prices reduce the mean squared prediction error by between 1.5% (for natural gas prices) and 20% (for copper prices). Moreover, the one‐month‐ahead directional forecast is found to perform significantly better than a 50:50 coin toss. As stock prices are not subject to revision, the proposed variable, which reflects timely and readily available market information, can potentially be a valuable predictor and thereby help to improve the accuracy of commodity price forecasts.     

A Macrotheoretic Model of the Chinese Economy

A stylized model of the Chinese economy is developed with three production sectors: agriculture, nontraded industrial goods, and industrial exports. The state purchases food from farmers by dual-track pricing; urban food sales are subsidized through ration coupons. Marginal prices clear markets except that currency controls constrain the availability of intermediates, the only imports. Devaluation is found to stimulate real variables, but deflates money variables; the reverse occurs with monetary expansion or raising the plan-track food procurement price. Lowering urban food subsidies or raising enterprise taxation reduces the budget deficit, reduces open and disguised unemployment, and deflates nominal prices.     

Tariff pass-through and the distributional effects of trade liberalization

This paper estimates the distribution of welfare gains due to the trade reforms in India by simultaneously considering the effect on prices of tradable goods and wages. The cost of consumption for each household is affected by the domestic price changes, while wage incomes adjust to these price changes in equilibrium. Three rounds of the Indian Employment and Consumption Surveys are used for the analysis. The price transmission mechanisms are estimated for both rural and urban areas to understand the extent to which the trade reforms are able to affect the domestic prices. In order to assess the distributional effects, a series of nonparametric local linear regressions are estimated. The findings show that households at all per capita expenditure levels had experienced gains as a result of the trade liberalization, while the average effect was generally pro-poor and varied significantly across the per capita expenditure spectrum.     

International migration,non-traded goods and economic welfare in the source country: a comment

"Labor emigration redistributes income in a two factor, two good economy where one good is internationally non-traded. Labor's nominal wage rises as nominal capital payments fall. Recent research has shown that the prices of non-traded goods rise, causing society's welfare to decline. Here the induced change in the real income of each factor is considered separately. There is an ambiguity with regard to the real income of non-emigrating labor. If labor spends a relatively small fraction of income on the non-traded goods, its real income may rise, even though society suffers the loss of welfare."     

Decomposing growth in revenues and costs into price,quantity and total factor productivity contributions

This article employs the superlative Fisher and Törnqvist indexes for exact decomposition of growth in nominal revenues and costs. The findings confirm the well-known result that these indexes very closely approximate each other, implying that the mathematically simpler and computationally easier Törnqvist is the more practicable index. Moreover, this article's nominal growth decomposition yields all the results from the more common real growth decomposition and is also more informative for policy purposes. Application to the US agricultural sector during 1948–2001 shows that of the 3.31% average annual growth in revenues, TFP growth contributed 1.90 percentage points (pct. pts.); growth in output prices added 1.43 pct. pts.; while growth in input quantities contributed?–?0.02 pct. pts. (i.e. fewer inputs). Therefore, real output growth (or revenue growth less output price growth) was 1.88 pct. pts., revealing that TFP's 1.90 pct. pts. growth contribution was fully responsible for real output growth with fewer inputs. Since revenues measure incomes, these results suggest that policy should focus more on measures to foster TFP growth than on specific price or quantity instruments to enhance income growth.     

The distributive impact of terms of trade shocks: The case of the oil price changes in Russia

The halving of oil prices, during a short period between 2014 and 2015, has generated major terms of trade losses for oil exporting countries. This terms of trade shock has economy‐wide effects and significant distributive impacts. This paper, using a macro‐micro simulation model, describes and quantifies the channels of transmission from the drop of oil prices, to changes in welfare distribution at the household level for the case of the Russian Federation. The oil price reduction generates a reverse Dutch disease impacting sectoral employment, factor returns and consumption prices. It causes a contraction of employment and wages in more skill‐intensive (non‐tradable) sectors, and a reduction in consumption prices that is more pronounced for non‐food than for food goods. When these shifts are mapped to changes in incomes at the micro level, all households are affected. Poverty rates increase by 1 to 4 percentage points, depending on the poverty line used. At the US$ 10 a day threshold, 4.1 million additional people fall into poverty. Along the consumption distribution, richer people are affected more than those in the bottom 40%. However, this minor progressive impact may be reversed due to increases in unemployment and cuts in social programmes.     

"NOMINAL" AND "REAL" INTERSTATE INCOME INEQUALITY IN THE UNITED STATES: SOME ADDITIONAL EVIDENCE

Using a good inequality index, and data on personal income and cost-of-living estimates for the period 1981–90, interstate inequality in "nominal" and "real" personal income per capita is compared. Four points are noted. First, inequality in real income is smaller than that in nominal income. Second, while the nominal-income inequality shows the well-known increase over the 1980s, real-income inequality declined during the period. Third, inequality patterns in the wage and the non-wage components of income are somewhat different. Last, even the nominal-income inequality indicates a decline in the early 1990s.     

Inflation model of a semicommand economy

A semicommand economy can be defined as a system where the pricing of goods is influenced by the market but where the prices of production factors are under control of the state. The model presents various pricing and economic policy measures to deal with inflation. It is constructed as a dynamic supply-side focused, input-output model which differentiates nominal and real movements. It examines the possible responses of prices and the volume of production to certain measures or programmes to counteract inflation. The cases described are based on the present day Yugoslav economy.     

Profit Differences and Corporate Power: Some Empirical Surprises

Inflation targeting is currently the policy of choice for central banks. This policy invariably targets consumer price inflation, which is only one of many available price level indices (such as prices of new investments and house prices). As there is no stable relationship between these price levels, and as differences in developments between the different price levels might induce destabilizing behavior, there is no reason why “low and stable” consumer price inflation should guarantee monetary and financial stability. Following John Maynard Keynes, a “low and stable” increase of average nominal wages might do a better job. As price levels are designed to estimate the purchasing power of spending power and as income, and spending power are used to not just consume or invest but also to pay down many kinds of (gross) debt, it is advisable to use a joint definition of monetary and financial stability, which combines stable purchasing power of monetary income with a stable ability of households and companies to pay off debts.     

Are there bubbles in Chinese RMB–dollar exchange rate? Evidence from generalized sup ADF tests

This article uses recently developed generalized sup ADF (GSADF) unit root tests into the analysis of nominal RMB–dollar exchange rates bubbles. Based on the results from the GSADF tests, we find strong evidence of explosive behaviour in the nominal exchange rate and investigate two bubbles there. The first bubble is during 2005–2006 which is determined neither by the relative prices of traded goods nor the relative price of nontraded goods. The second bubble busts in 2008 during subprime crisis period, and which is determined by the relative prices of traded goods but not the relative price of nontraded goods. There is no bubble before 2005 as the exchange rate is under fixed regime. As for this result, some expansionary monetary and fiscal policies are required in China since these are the most efficient and effective under a bubble burst scenario.     

WAGE–PRICE DYNAMICS AND DEFLATION IN HONG KONG

Abstract. We provide empirical evidence on the dynamics of prices and wages in Hong Kong. The results suggest that the post‐1997 deflation can be understood using a conventional macroeconomic framework wherein foreign influences constitute the basic underlying shocks, and adjustment processes in domestic wages and prices determine the details of the transmission mechanism. We find that the decline in local nominal prices owes much to declining prices of imported intermediate goods. The negative output gap and increase in unemployment during the deflation period also have their origin in foreign shocks, but the domestic wage adjustment process is an important contributing factor.