The paper studies inference in nonlinear models where identification loss presents in multiple parts of the parameter space. For uniform inference, we develop a local limit theory that models mixed identification strength. Building on this non-standard asymptotic approximation, we suggest robust...

This paper investigates the problem of testing conditional independence of Y and Z given λθ(X) for some unknown θ ∈ Θ ⊂ Rd, for a parametric function λθ(•). For instance, such a problem is relevant in recent literatures of heterogeneous treatment effects and contract theory. First,...

In this paper we address the following questions: (i) To what extent is the hypothesis that voters vote sincerely testable or falsifiable? And (ii) in environments where the hypothesis is falsifiable, to what extent is the observed behavior of voters consistent with sincere voting? We show that...

Over the past two decades the venture capital industry became a major focus for the financial media. With potential for high rates of return, this industry attracts entrepreneurs looking for opportunities to invest. While some investments are successful and highly publicized, many are not. This...

In this paper we address the following question: To what extent is the hypothesis that voters vote “ideologically” (i.e., they always vote for the candidate who is ideologically “closest” to them) testable or falsifiable? We show that using data only on how individuals vote in a single...

Bidders’ risk attitudes have important implications for sellers seeking to maximize expected revenues. In ascending auctions, auction theory predicts bid distributions in Bayesian Nash equilibrium does not convey any information about bidders' risk preference. We propose a new approach for...

Nonrandom sampling schemes are often used in program evaluation settings to improve the quality of inference. This paper considers what we call treatment-based sampling, a type of standard stratified sampling where part of the strata are based on treatment status. This paper establishes...

This paper considers models of conditional moment restrictions that involve non-parametric functions of single-index nuisance parameters. This paper proposes a bootstrap method of constructing confidence sets which has the following three merits. First, the bootstrap is valid even when the...

Public concern over global climate change, resource depletion, and environmental degradation has amplified over the last several years, leading to increased demand for environmentally friendly products. Additionally, the price of Clean-Technology products has fallen. This paper examines venture...

This paper examines venture capital investment activity in the United States during the period 1995 to the first quarter 2009, taking into consideration both location and industry sector. The research question is whether industry and region are important factors in determining venture capital...