News - or foresight - about future economic fundamentals can create rational expectations equilibria with non-fundamental representations that pose substantial challenges to econometric efforts to recover the structural shocks to which economic agents react. Using tax policies as a leading example of foresight, simple theory makes transparent the economic behavior and information structures that generate non-fundamental equilibria. Econometric analyses that fail to model foresight will obtain biased estimates of output multipliers for taxes; biases are quantitatively important when two canonical theoretical models are taken as data generating processes. Both the nature of equilibria and the inferences about the effects of anticipated tax changes hinge critically on hypothesized information flows. Different methods for extracting or hypothesizing the information flows are discussed and shown to be alternative techniques for resolving a non-uniqueness problem endemic to moving average representations.

Like other fragile sub-Saharan African countries, Côte d’Ivoire, Guinea, Liberia, and Sierra Leone are seeking to harness their natural resource potential in the context of ambitious development strategies. This study investigates options for scaling up public investment and expanding social safety nets in a general equilibrium setting. First, it assesses the macro-fiscal implications of alternative fiscal rules for public investment, and, second, it explicitly accounts for redistribution through direct cash transfers. Results show that a sustainable non-resource deficit target is robust to the high uncertainty of resources output and prices, while delivering growth benefits through higher public investment. The scaling-up magnitudes, however, depend on the size of projected resource revenue and absorptive capacity. Adding a social transfer raises private consumption, suggesting that a fraction of the resource revenue could be used to expand safety nets.

Botswana, Lesotho, Namibia, and Swaziland face the serious challenge of adjusting not only to lower Southern Africa Customs Union (SACU) transfers because of the global economic crisis, but also to a potential further decline over the medium term. This paper assesses options for the design of the needed fiscal consolidation. The choice among these options should be driven by (i) the impact on growth and (ii) the specificities of each country. Overall, a focus on government consumption cuts appears to minimize the negative impact on growth, and would be appropriate given the relatively large size of the public sector in each country.

Despite the voluminous literature on fiscal policy, very few papers focus on low-income countries (LICs). This paper develops a new-Keynesian small open economy model to show, analytically and through simulations, that some of the prevalent features of LICs---different types of financing including aid, the marginal efficiency of public investment, and the degree of home bias---play a key role in determining the effects of fiscal policy and related multipliers in these countries. External financing like aid increases the resource envelope of the economy, mitigating the private sector crowding out effects of government spending and pushing up the output multiplier. The same external financing, however, tends to appreciate the real exchange rate and as a result, traded output can respond quite negatively, reducing the overall output multiplier. Although capital scarcity implies high returns to public capital in LICs, declines in public investment efficiency can substantially dampen the output multiplier. Since LICs often import substantial amounts of goods, public investment may not be as effective in stimulating domestic production in the short run.--Abstract.