SignalStack

Disambiguation corner

Terms the newsletter has taken apart because they are routinely swapped for each other. Each entry says how the terms differ and why the difference changes a number or a policy.

Generated by scripts/build_companions.py from archive/; edit the source, not this file.

BPL, SECC, MPI, and the Poverty Line

From The Research Rundown: July 2026, 2026-07-08.

Four terms that get swapped as if they meant the same thing.

The poverty line is a consumption or income threshold, historically set by committees such as the Tendulkar and Rangarajan committees, used to produce a national headcount. India has not had an updated official one since 2011-12.

BPL Below Poverty Line) is an administrative category, and the household lists built from it have long been used to target subsidies. Its lists have carried large inclusion and exclusion errors, which is why holding a BPL card and being poor were never the same thing.

SECC, the Socio-Economic and Caste Census of 2011, used no poverty line at all. It ranked households on deprivation criteria and became the spine of beneficiary targeting for several major schemes.

MPI, the Multidimensional Poverty Index, measures deprivation across health, education and living standards rather than money. NITI Aayog’s national version is built on the NFHS.

Short version: the poverty line counts rupees, the MPI counts deprivations, SECC ranked households, and BPL is the administrative list none of them produced cleanly. Treating them as interchangeable is how the poverty argument stays permanently muddled.

SIR, NPR, NRC

*From [The Research Rundown May 2026](/SignalStack/archive/2026-05-08-the-research-rundown-may-2026.html), 2026-05-08.*

The West Bengal election cemented SIR (Special Intensive Revision) into the general political vocabulary. Here is a brief guide to how it relates to other roll-related acronyms that recur.

SIR: A process under Section 21 of the Representation of the People Act, 1950, through which the Election Commission can comprehensively review and update electoral rolls. It involves house-to-house verification by Booth Level Officers, followed by a claims-and-objections window. The 2025-26 SIR was notable for its scale (nine states and three UTs simultaneously), its speed, and the use of AI-assisted transliteration software that flagged names for deletion based on script inconsistencies.

NPR (National Population Register): A register of residents maintained under the Citizenship Act. The NPR forms the base for a potential national NRC. The last NPR update was scheduled alongside the 2021 Census. With Census 2027 Phase 1 underway, an updated NPR process may be relaunched.

NRC (National Register of Citizens): A register of citizens determining who legally belongs to India. Currently complete only in Assam, where the 2013-2019 update excluded 1.9 million people. A national NRC has been announced but remains unimplemented.

The critical distinction for practitioners: SIR governs electoral eligibility (who can vote), while NPR/NRC governs citizenship status (who belongs). They are legally separate. They share the same infrastructure: documentary proof, house-to-house verification, and track records of systematically excluding poorer, more mobile, and minority populations, who have the least consistent documentation.

The Bengal SIR operated on the electoral roll rather than the citizenship register, but its effect on Muslim voters’ practical ability to exercise citizenship rights was structurally similar to that of an NRC exercise. This distinction will matter for advocacy and litigation work going forward.

“Gig Worker” vs “Informal Worker” vs “Platform Worker”

From The Research Rundown — March 2026 Edition, 2026-03-18.

These are used interchangeably, but they are not the same.

Informal worker: Works outside formal employer-employee contracts, largely invisible to regulation. Includes domestic workers, daily wage labourers, construction workers — the vast majority of India’s working population.

Gig worker: Performs task-based work outside a continuous employment relationship. Can sit in the formal or informal sector, depending on how the arrangement is structured.

Platform worker: A gig worker connected to work specifically through a digital platform — Zomato, Ola, Urban Company, and so on.

All platform workers are gig workers. Most gig workers in India remain informal workers. But most informal workers — daily wage labourers, domestic workers, home-based piece-rate workers — are not gig workers in any meaningful sense. A policy that conflates these categories ends up serving none of them adequately. Budget 2026 is a case study in exactly this problem.

“Gender-Neutral” vs “Gender-Responsive” vs “Gender-Transformative”

From The Research Rundown — March 2026 Edition, 2026-03-18.

Gender-neutral: Treats all genders identically by ignoring structural differences. This is, unfortunately, what most South Asian climate policy currently looks like — as the Local Environment paper above documents.

Gender-responsive: Acknowledges and responds to existing gender inequalities. Better, but still operates within existing power structures rather than challenging them.

Gender-transformative: Actively works to shift the power relations and social norms that produce gender inequality. What the evidence says we need, and what almost no policy delivers.

The gap between where South Asian climate policy sits and where the evidence says it needs to go is not methodological. It is political.

“Climate-Smart Agriculture” vs. “Climate-Resilient Agriculture” vs. “Sustainable Agriculture”

From The Research Rundown - August 2025 Edition (erm… in September), 2025-09-01.

All related, often overlapping, but not interchangeable. Context matters.

“Microlearning” vs. “Micro-credentialing” vs. “Micro-interventions”

From The Research Rundown - August 2025 Edition (erm… in September), 2025-09-01.

Local knowledge and local consensus

*From [The Research Rundown June 2025](/SignalStack/archive/2025-06-26-the-research-rundown-june-2025-edition.html), 2025-06-26.*

They are different.

A community can possess detailed knowledge of an ecosystem while disagreeing sharply over what should be done with it.

Fishers may understand a coastal resource differently from tourism operators. Landless labourers may prefer an adaptation strategy that landowners oppose. Women and men inside the same household may face different costs from the same intervention.

Invoking “community knowledge” therefore does not resolve questions of representation.

The useful question is whose knowledge is being elicited, whose is missing and how disagreement enters the analysis.

Representation and authority

*From [The Research Rundown June 2025](/SignalStack/archive/2025-06-26-the-research-rundown-june-2025-edition.html), 2025-06-26.*

Having members of an affected group in a research process gives that group representation.

Authority concerns whether they can affect decisions.

A steering committee may be socially diverse while all major decisions remain with the funder or principal investigator.

Count both.

Allocation vs expenditure

*From [The Research Rundown April 2025](/SignalStack/archive/2025-04-28-the-research-rundown-april-2025-edition.html), 2025-04-28.*

A budget allocation is what government proposes or authorises to spend.

Expenditure is what is actually spent.

They answer different questions.

A large allocation can indicate political priority, programme expansion or a change in accounting. It does not establish implementation. Actual expenditure can still differ substantially, and expenditure itself does not establish that money produced the intended outcome.

When somebody tells you a programme’s budget increased by 30 per cent, ask which number they are comparing: Budget Estimate, Revised Estimate or Actual Expenditure.

The answer can change the story.

Migration vs displacement

*From [The Research Rundown April 2025](/SignalStack/archive/2025-04-28-the-research-rundown-april-2025-edition.html), 2025-04-28.*

Migration is a broad category covering movement for many reasons and under very different degrees of choice.

Displacement refers to movement in which people are forced or compelled to leave their homes, including because of disasters or conflict.

Climate-related mobility can contain both.

Treating all migration from a climate-stressed region as forced displacement overstates environmental causation. Treating all migration as a voluntary labour-market choice can hide severe constraint.

The categories are analytical tools. People’s lives are less tidy.